Diagnostic Trouble Codes (DTC) Index
DIAGNOSTIC TROUBLE CODES (DTC) INDEX
| SAE Code | VAG Code | Code Description | Corrective action |
|---|---|---|---|
| P00AF | - | Turbocharger Boost Control Module Performance | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P0045 | - | Turbocharger Boost Control Solenoid Circuit Open | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P0047 | - | Turbocharger Boost Control Solenoid Circuit Low | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P0048 | - | Turbocharger Boost Control Solenoid Circuit High | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P0071 | - | Ambient Air Temperature Sensor Circuit Range/Performance | -- Check the Outside Air Temperature Sensor -G17-. Refer to Outside Air Temperature Sensor -G17-, CHECKING . |
| P0072 | - | Ambient Air Temperature Sensor Circuit Low | -- Check the Outside Air Temperature Sensor -G17-. Refer to Outside Air Temperature Sensor -G17-, CHECKING . |
| P0087 | 16471 | Fuel Rail/System Pressure - Too Low | -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . |
| P0088 | 16472 | Fuel Rail/System Pressure - Too High | -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING .-- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . |
| P0090 | - | Fuel Pressure Regulator 1 Control Circuit | -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . |
| P0091 | - | Fuel Pressure Regulator 1 Control Circuit Low | -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . |
| P0092 | - | Fuel Pressure Regulator 1 Control Circuit High | -- Check the Fuel Pressure Regulator Valve -N276-. Refer to Fuel Pressure Regulator Valve -N276-, CHECKING . |
| P0101 | 16485 | Mass Air Flow Circuit Range/Performance | -- Check the Mass Airflow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING . |
| P0102 | 16486 | Mass Air Flow Circuit Low Input | -- Check the Mass Airflow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING . |
| P0103 | 16487 | Mass Air Flow Circuit High Input | -- Check the Mass Airflow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING . |
| P0104 | - | Mass Air Flow Circuit Intermittent | -- Check the Mass Airflow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING . |
| P0111 | 16495 | Intake Air Temperature Circuit Performance | -- Check the Intake Air Temperature Sensor -G42- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P0112 | 16496 | Intake Air Temperature Circuit Low Input | -- Check the Intake Air Temperature Sensor -G42- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P0113 | 16497 | Intake Air Temperature Circuit High Input | -- Check the Intake Air Temperature Sensor -G42- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P0116 | 16500 | Engine Coolant Temperature Sensor 1 Circuit Range/Performance | -- Check the Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING . |
| P0117 | 16501 | Engine Coolant Temperature Sensor 1 Circuit low | -- Check the Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING . |
| P0118 | 16502 | Engine Coolant Temperature Sensor 1 Circuit High | -- Check the Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING . |
| P0128 | 16512 | Coolant Thermostat Temperature below control range | -- Check the thermostat for proper operation (stuck open or damaged). Refer to appropriate service information.-- Check the Engine Coolant Temperature Sensor -G62-. Refer to Engine Coolant Temperature Sensor -G62-, CHECKING . |
| P0130 | 16514 | O2 Sensor Circuit Bank 1 Sensor 1 Malfunction | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P0132 | 16516 | O2 Sensor Circuit Bank 1 Sensor 1 High Voltage | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P0133 | 16517 | O2 Sensor Circuit Bank 1 Sensor 1 Slow Response | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P0135 | 16519 | O2 Sensor Heater Circuit Bank 1 Sensor 1 Malfunction | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P0171 | 16555 | Fuel Trim, Bank 1 System too Lean | -- Check for any sensor related codes. If a related sensor fault is set, diagnose it first. If no related sensor codes are set, check for an intake air leak (from intake duct, manifold gasket or EGR not closed fully) or check for low Fuel pressure. Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information. |
| P0172 | 16556 | Fuel Trim, Bank 1 System too Rich | -- Check for any sensor related codes. If a sensor fault is set, diagnose it first. If no related sensor codes are set, check Fuel pressure and fuel injectors. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information. |
| P0181 | 16565 | Fuel Temperature Sensor Circuit Range/Performance | -- Check the Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING . |
| P0182 | 16566 | Fuel Temperature Sensor Circuit Low | -- Check the Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING . |
| P0183 | 16567 | Fuel Temperature Sensor Circuit High | -- Check the Fuel Temperature Sensor -G81-. Refer to Fuel Temperature Sensor -G81-, CHECKING . |
| P0191 | 16575 | Fuel Rail Pressure Sensor Circuit Range/Performance | -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . |
| P0192 | 16576 | Fuel Rail Pressure Sensor Circuit Low Input | -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . |
| P0193 | 16577 | Fuel Rail Pressure Sensor Circuit High Input | -- Check the Fuel Pressure Sensor -G247-. Refer to Fuel Pressure Sensor -G247-, CHECKING . |
| P0201 | 16585 | Cylinder 1 Injector Circuit | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P0202 | 16586 | Cylinder 2 Injector Circuit | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P0203 | 16587 | Cylinder 3 Injector Circuit | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P0204 | 16588 | Cylinder 4 Injector Circuit | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P0205 | 16589 | Cylinder 5 Injector Circuit | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P0206 | 16590 | Cylinder 6 Injector Circuit | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P0234 | 16618 | Turbo Charger Overboost Condition limit exceeded | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P0236 | 16620 | Turbocharger Boost Sensor Circuit Performance | -- Check the Charge Air Pressure Sensor -G31- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P0237 | 16621 | Turbocharger Boost Sensor Circuit Low Input | -- Check the Charge Air Pressure Sensor -G31- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P0238 | 16622 | Turbocharger Boost Sensor Circuit High Input | -- Check the Charge Air Pressure Sensor -G31- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P026A | - | Charge Air Cooler Below Efficiency | -- Check for road debris on the right or left intercooler obstructing air flow. If any other related (turbocharger) fault codes are set, diagnose those codes first.-- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P0263 | 16647 | Cylinder 1 Contribution/Balance | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0266 | 16650 | Cylinder 2 Contribution/Balance | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0269 | 16653 | Cylinder 3 Contribution/Balance | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0272 | 16656 | Cylinder 4 Contribution/Balance | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0275 | 16659 | Cylinder 5 Contribution/Balance | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0278 | 16662 | Cylinder 6 Contribution/Balance | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0299 | 16683 | Turbo Charger Underboost | -- Check for disconnected or damaged air duct.-- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING .-- Check the Charge Air Pressure Sensor -G31- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P0300 | 16684 | Random/Multiple Cylinder. Misfire Detected | -- Check for fuel contamination.-- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information. |
| P0301 | 16685 | Cylinder 1 Misfire Detected | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information.-- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0302 | 16686 | Cylinder 2 Misfire Detected | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information.-- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0303 | 16687 | Cylinder 3 Misfire Detected | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information.-- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0304 | 16688 | Cylinder 4 Misfire Detected | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information.-- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0305 | 16689 | Cylinder 5 Misfire Detected | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information.-- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0306 | 16690 | Cylinder 6 Misfire Detected | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING .-- Check the fuel pressure and delivery quantity. Refer to fuel system mechanical testing in PRELIMINARY CHECK and/or to appropriate service information.-- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING .-- Check the cylinder compression. Refer to appropriate service information. |
| P0321 | 16705 | Engine Speed Input Circuit Range/Performance | -- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING . |
| P0322 | 16706 | Engine Speed Input Circuit No Signal | -- Check the Engine Speed Sensor -G28-. Refer to Engine Speed Sensor -G28-, CHECKING . |
| P04DD | - | Cold Start EGR Insufficient Flow Detected | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P04DE | - | Cold Start EGR Excessive Flow Detected | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P040B | - | Exhaust Gas Recirculation Temperature Sensor Circuit Range/Performance | -- Check the EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING . |
| P040C | - | Exhaust Gas Recirculation Temperature Sensor Circuit Low | -- Check the EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING . |
| P040D | - | Exhaust Gas Recirculation Temperature Sensor Circuit High | -- Check the EGR Temperature Sensor -G98-. Refer to EGR Temperature Sensor -G98-, CHECKING . |
| P0401 | 16785 | Exhaust Gas Recirculation Insufficient Flow Detected | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P0402 | 16786 | Exhaust Gas Recirculation Excessive Flow Detected | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P0403 | 16787 | Exhaust Gas Recirculation Circuit | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P0404 | 16788 | Exhaust Gas Recirculation Control Circuit Range/Performance | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P0405 | - | Exhaust Gas Recirculation Sensor Circuit Low | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P040 | - | Exhaust Gas Recirculation Sensor Circuit High | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P0420 | 16804 | Catalyst System Bank 1 Efficiency Below Threshold | -- Check the Three Way Catalytic Converter (TWC). Refer to THREE WAY CATALYTIC CONVERTER (TWC), CHECKING . |
| P046C | - | Exhaust Gas Recirculation Sensor Circuit Range/Performance | -- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P050A | - | Cold Start Idle Air Control System Performance | -- Check for any TSB's that may apply to this fault. If multiple codes are set, perform diagnosis for any fuel system, engine speed sensor, MAF, EGR, APP or MAP related faults first.-- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING .-- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P050E | - | Cold Start Engine Exhaust Temperature Too Low | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P0501 | 16885 | Vehicle Speed Sensor Performance | -- Check the vehicle speed signal input. Refer to VEHICLE SPEED SIGNAL, CHECKING . |
| P0502 | - | Vehicle Speed Sensor Circuit Low | -- Check the vehicle speed signal input. Refer to VEHICLE SPEED SIGNAL, CHECKING . |
| P0506 | 16890 | Idle Control System RPM Lower than Expected | -- Check for any TSB's that may apply to this fault. If multiple codes are set, perform diagnosis for any fuel system, engine speed sensor, MAF, EGR, APP, Throttle control or MAP related faults first.-- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING . |
| P0507 | 16891 | Idle Control System RPM Higher than Expected | -- Check for any TSB's that may apply to this fault. If multiple codes are set, perform diagnosis for any fuel system, engine speed sensor, MAF, EGR, APP, Throttle control or MAP related faults first.-- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING . |
| P052F | - | Glow Plug Control Module System Voltage | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0544 | 16928 | Exhaust Gas Temperature Sensor Circuit - Bank 1 | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P0545 | 16929 | Exhaust Gas Temperature Sensor Circuit - Bank 1 Low | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P06BA | - | Cylinder 2 Glow Plug Circuit Range/Performance | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P06BB | - | Cylinder 3 Glow Plug Circuit Range/Performance | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P06BC | - | Cylinder 4 Glow Plug Circuit Range/Performance | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P06BD | - | Cylinder 5 Glow Plug Circuit Range/Performance | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P06BE | - | Cylinder 6 Glow Plug Circuit Range/Performance | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P06B9 | - | Cylinder 1 Glow Plug Circuit Range/Performance | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P06E5 | - | Glow Plug Control Module Performance | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P06FE | - | Cold Start Diesel Intake Air Flow Control Performance | -- Check the Mass Airflow Sensor -G70-. Refer to Mass Airflow Sensor -G70-, CHECKING .-- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P0604 | 16988 | Internal Control Module Random Access Memory (RAM) Error | -- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P0605 | 16989 | Internal Control Module Read Only Memory (ROM) Error | -- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P0606 | 16990 | Internal Control Module Memory Check Sum Error | -- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P0607 | 16991 | Control Module Performance | -- Check for any sensor or voltage related codes first and repair as necessary. If no other codes have set:-- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P0634 | 17018 | ECM Internal Temperature Too High | -- Check for any sensor or voltage related codes first and repair as necessary. If P0634 resets:-- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P0638 | 17022 | Throttle Actuator Control Bank 1 Range/Performance | -- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING . |
| P064C | - | Glow Plug Control Module | -- Check for correct ECM software installed.-- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0641 | 17025 | Sensor Reference Voltage "A" Circuit/Open | -- Perform diagnosis on any sensor voltage high or low codes first. Doing so will ensure that there is no shorted circuit or sensor causing this voltage code to set. If no other codes have set:-- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P0651 | 17035 | Sensor Reference Voltage "B" Circuit/Open | -- Perform diagnosis on any sensor voltage high or low codes first. Doing so will ensure that there is no shorted circuit or sensor causing this voltage code to set. If no other codes have set:-- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P066A | - | Cylinder 1 Glow Plug Control Circuit Low | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P066C | - | Cylinder 2 Glow Plug Control Circuit Low | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P066E | - | Cylinder 3 Glow Plug Control Circuit Low | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P067A | - | Cylinder 4 Glow Plug Control Circuit Low | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P067B | - | Cylinder 4 Glow Plug Control Circuit High | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P067C | - | Cylinder 5 Glow Plug Control Circuit Low | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P067D | - | Cylinder 5 Glow Plug Control Circuit High | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P067E | - | Cylinder 6 Glow Plug Control Circuit Low | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P067F | - | Cylinder 6 Glow Plug Control Circuit High | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0671 | 17055 | Cylinder 1 Glow Plug Circuit | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0672 | 17056 | Cylinder 2 Glow Plug Circuit | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0673 | 17057 | Cylinder 3 Glow Plug Circuit | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0674 | 17057 | Cylinder 4 Glow Plug Circuit | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0675 | 17059 | Cylinder 5 Glow Plug Circuit | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0676 | 17060 | Cylinder 6 Glow Plug Circuit | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0683 | - | Glow Plug Control Module to PCM Communication Circuit | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| P0697 | 17081 | Sensor Reference Voltage "C" Circuit/Open | -- Perform diagnosis on any sensor voltage high or low codes first. Doing so will ensure that there is no shorted circuit or sensor causing this voltage code to set. If no other codes have set:-- Replace the Engine Control Module -J623-. Refer to appropriate service information. |
| P1419 | - | Exhaust Gas Recirculation Cooler Switch-Over Valve 2 Short Circuit To Voltage | -- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P146D | - | Heater 1 For Reducing Agent Short Circuit To Voltage | -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P146F | - | Heater 2 for Reducing Agent Short Circuit To Voltage | -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104-. Refer to Reducing Agent Line Heater (Heating Circuit 2) -Z104-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P148F | - | Exhaust Gas Recirculation Cooler Switch-Over Valve 2 Electrical Malfunction | -- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P1499 | - | Exhaust Gas Recirculation Cooler Switch-Over Valve 2 Open Circuit/Short Circuit To Ground | -- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P150A | - | Engine Off Timer Performance | -- Check ALL power and grounds at the ECM. Refer to the wiring diagrams for location at the ECM. The ECM must have a battery power supply when the key is off to run the timer and system checks. If power and grounds are present, replace the ECM. Refer to appropriate service information. |
| P20A0 | - | Reducing Agent Purge Control Valve Circuit Open | -- Check the Reducing Agent Reversing Valve -N473-. Refer to Reducing Agent Reversing Valve -N473-, CHECKING . |
| P20A2 | - | Reducing Agent Purge Control Valve Circuit Low | -- Check the Reducing Agent Reversing Valve -N473-. Refer to Reducing Agent Reversing Valve -N473-, CHECKING . |
| P20A3 | - | Reducing Agent Purge Control Valve Circuit High | -- Check the Reducing Agent Reversing Valve -N473-. Refer to Reducing Agent Reversing Valve -N473-, CHECKING . |
| P20BB | - | Reducing Agent Heater 1 Control Circuit Low | -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20BC | - | Reducing Agent Heater 1 Control Circuit High | -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20BD | - | Reducing Agent Heater 2 Control Circuit/Open | -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104-. Refer to Reducing Agent Line Heater (Heating Circuit 2) -Z104-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20B5 | - | Reducing Agent Metering Unit Heater Control Circuit/Open | -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104-. Refer to Reducing Agent Line Heater (Heating Circuit 2) -Z104-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20B7 | - | Reducing Agent Metering Unit Heater Control Circuit Low | -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104-. Refer to Reducing Agent Line Heater (Heating Circuit 2) -Z104-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20B8 | - | Reducing Agent Metering Unit Heater Control Circuit High | -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104-. Refer to Reducing Agent Line Heater (Heating Circuit 2) -Z104-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20B9 | - | Reducing Agent Heater 1 Control Circuit/Open | -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20C0 | - | Reducing Agent Heater 2 Control Circuit High | -- Check the Reducing Agent Line Heater (Heating Circuit 2) -Z104-. Refer to Reducing Agent Line Heater (Heating Circuit 2) -Z104-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P20EE | - | SCR NOx Catalyst Efficiency Below Threshold Bank 1 | -- If a NOx sensor code is also present, diagnose that code first. Check the Reducing Agent (AdBlue) Quality. Refer to REDUCING AGENT (ADBLUE®) CONSUMPTION OR QUALITY CHECKING .-- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING .-- Check the Reducing Agent Injector -N474-. Refer to Reducing Agent Injector -N474-, CHECKING . |
| P20E8 | - | Reducing Agent Pressure Too Low | -- Check the Reducing Agent Metering System Pressure Sensor -G686-. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . |
| P20E9 | - | Reducing Agent Pressure Too High | -- Check the Reducing Agent Metering System Pressure Sensor -G686-. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . |
| P20F4 | - | Reducing Agent Consumption Too Low | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING .-- Check for a stuck open reducing agent injector.-- Check the Reducing Agent Injector -N474-. Refer to Reducing Agent Injector -N474-, CHECKING . |
| P20F5 | - | Reducing Agent Consumption Too High | -- Check the Reducing Agent (AdBlue) Quality. Refer to REDUCING AGENT (ADBLUE®) CONSUMPTION OR QUALITY CHECKING .-- Check for a stuck closed or restricted reducing agent injector-- Check the Reducing Agent Injector -N474-. Refer to Reducing Agent Injector -N474-, CHECKING . |
| P2002 | - | Particulate Trap Bank 1 Efficiency Below Threshold | -- Check the Differential Pressure Sensor -G505-. Refer to Differential Pressure Sensor -G505-, CHECKING .-- If the pressure sensors are OK, a Service Bay Regeneration should be performed using a VAS 5052 (available for rental) or equivalent scan tool. |
| P2004 | 18436 | Intake Manifold Runner Control Bank 1 Stuck Open | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P2005 | - | Intake Manifold Runner Control Bank 2 Stuck Open | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P2006 | - | Intake Manifold Runner Control Bank 1 Stuck Closed | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P2007 | - | Intake Manifold Runner Control Bank 2 Stuck Closed | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P2008 | 18440 | Intake Manifold Runner Control Bank 1 Stuck Open | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P2009 | 18441 | Intake Manifold Runner Bank 1 Control Circuit Low | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P2010 | - | Intake Manifold Runner Control Circuit High, Bank 1 | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P2011 | - | Intake Manifold Runner Bank 2 Control Circuit Stuck Open | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P2012 | - | Intake Manifold Runner Bank 2 Control Circuit Low | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P2013 | - | Intake Manifold Runner Bank 2 Control Circuit High | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P2015 | 18447 | Intake Manifold Runner Position Sensor Circuit Range/Performance | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P2016 | 18448 | Intake Manifold Runner Position Sensor Circuit Low | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P2017 | 18449 | Intake Manifold Runner Position Sensor Circuit High | -- Check the Intake Flap Control Unit -GX14-. Refer to Intake Flap Control Unit -GX14-, CHECKING . |
| P202A | - | Reducing Agent Tank Heater Control Circuit/Open | -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P202B | - | Reducing Agent Tank Heater Control Circuit Low | -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P202C | - | Reducing Agent Tank Heater Control Circuit High | -- Check the Reducing Agent Tank Heater (Heating Circuit 1) -Z102-. Refer to Reducing Agent Tank Heater (Heating Circuit 1) -Z102-, CHECKING .-- Check the Reducing Agent Heater Control Module -J891-. Refer to Reducing Agent Heater Control Module -J891-, CHECKING . |
| P2020 | - | Intake Manifold Runner Position Sensor Circuit Bank 2 Range/Performance | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P2021 | - | Intake Manifold Runner Position Sensor Circuit Bank 2 Low | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P2022 | - | Intake Manifold Runner Position Sensor Circuit Bank 2 High | -- Check the Intake Flap Control Unit 2 -GX15-. Refer to Intake Flap Control Unit 2 -GX15-, CHECKING . |
| P203A | - | Reducing Agent Level Sensor Circuit | -- Check the Reducing Agent Reservoir Processing Unit -G698- / Reducing Agent Reservoir Sensor -G697-. Refer to Reducing Agent Reservoir Processing Unit -G698- / Reducing Agent Reservoir Sensor -G697-, CHECKING . |
| P203B | - | Reducing Agent Level Sensor Circuit Range/Performance | -- Check the Reducing Agent Reservoir Processing Unit -G698- / Reducing Agent Reservoir Sensor -G697-. Refer to Reducing Agent Reservoir Processing Unit -G698- / Reducing Agent Reservoir Sensor -G697-, CHECKING . |
| P2031 | - | Exhaust Gas Temperature Sensor 2 Circuit | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P2032 | - | Exhaust Gas Temperature Sensor 2 Circuit Low | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P204A | - | Reducing Agent Pressure Sensor Circuit | -- Check the Reducing Agent Metering System Pressure Sensor -G686-. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . |
| P204B | - | Reducing Agent Pressure Sensor Circuit Range/Performance | -- Check the Reducing Agent Metering System Pressure Sensor -G686-. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . |
| P204D | - | Reducing Agent Pressure Sensor Circuit High | -- Check the Reducing Agent Metering System Pressure Sensor -G686-. Refer to Reducing Agent Metering System Pressure Sensor -G686-, CHECKING . |
| P2047 | - | Reducing Agent Injection Valve Circuit Open | -- Check the Reducing Agent Injector -N474-. Refer to Reducing Agent Injector -N474-, CHECKING . |
| P2048 | - | Reducing Agent Injection Valve Circuit Low | -- Check the Reducing Agent Injector -N474-. Refer to Reducing Agent Injector -N474-, CHECKING . |
| P2049 | - | Reducing Agent Injection Valve Circuit High | -- Check the Reducing Agent Injector -N474-. Refer to Reducing Agent Injector -N474-, CHECKING . |
| P205A | - | Reducing Agent Tank Temperature Sensor Circuit | -- Check the Reducing Agent Temperature Sensor -G685-. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING . |
| P205B | - | Reducing Agent Tank Temperature Sensor Circuit Range/Performance | -- Check the Reducing Agent Temperature Sensor -G685-. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING . |
| P205C | - | Reducing Agent Tank Temperature Sensor Circuit Low | -- Check the Reducing Agent Temperature Sensor -G685-. Refer to Reducing Agent Temperature Sensor -G685-, CHECKING . |
| P207F | - | Reducing Agent Quality Performance | -- This code will set after a refill event (based on fluid level change) and ECM does not see a change in NOx during dosing. Check fluid in tank for contamination, wrong color (AD Blue is clear in color) or foreign substance used in refill. Also when AD Blue is stale, it will have an ammonia odor. Fresh AD Blue is nearly odorless. Drain tank completely and refill with fresh AD Blue if contamination is present.-- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P208A | - | Reducing Agent Pump Control Circuit/Open | -- Check the Reducing Agent Pump -V437-. Refer to Reducing Agent Pump -V437-, CHECKING . |
| P208C | - | Reducing Agent Pump Control Circuit Low | -- Check the Reducing Agent Pump -V437-. Refer to Reducing Agent Pump -V437-, CHECKING . |
| P208D | - | Reducing Agent Pump Control Circuit High | -- Check the Reducing Agent Pump -V437-. Refer to Reducing Agent Pump -V437-, CHECKING . |
| P208E | - | Reducing Agent Injection Valve Stuck Closed Bank 1 Unit 1 | -- Check the Reducing Agent Injector -N474-. Refer to Reducing Agent Injector -N474-, CHECKING . |
| P2080 | - | Exhaust Gas Temperature Sensor Circuit Range/Performance | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P2084 | - | Exhaust Gas Temperature Sensor 2 Circuit Range/Performance | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P2100 | 18532 | Throttle Actuator Control Motor Circuit/Open | -- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING . |
| P2101 | 18533 | Throttle Actuator Control Motor Circuit Range/performance | -- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING . |
| P2102 | 18534 | Throttle Actuator Control Motor Circuit Low | -- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING . |
| P2103 | 18535 | Throttle Actuator Control Motor Circuit High | -- Check the Throttle Valve Control Module -GX3-. Refer to Throttle Valve Control Module -GX3-, CHECKING . |
| P2122 | 18554 | Pedal Position Sensor D Circuit Low Input | -- Check the Accelerator Pedal Module -GX2-. Refer to Accelerator Pedal Module -GX2-, CHECKING . |
| P2123 | 18555 | Pedal Position Sensor D Circuit High Input | -- Check the Accelerator Pedal Module -GX2-. Refer to Accelerator Pedal Module -GX2-, CHECKING . |
| P2127 | 18559 | Pedal Position Sensor E Circuit Low Input | -- Check the Accelerator Pedal Module -GX2-. Refer to Accelerator Pedal Module -GX2-, CHECKING . |
| P2128 | 18560 | Pedal Position Sensor E Circuit High Input | -- Check the Accelerator Pedal Module -GX2-. Refer to Accelerator Pedal Module -GX2-, CHECKING . |
| P2138 | 18570 | Pedal Position Sensor D/E Circuit Voltage Correlation | -- Check the Accelerator Pedal Module -GX2-. Refer to Accelerator Pedal Module -GX2-, CHECKING . |
| P2146 | 18578 | Fuel Injector Group "A" Supply Voltage Circuit Open | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P2149 | 18581 | Fuel Injector Group "C" Supply Voltage Circuit/Open | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P2152 | 18584 | Fuel Injector Group "C" Supply Voltage Circuit/Open | -- Check the Fuel Injectors --. Refer to Fuel Injectors --, CHECKING . |
| P2184 | 18616 | Engine Coolant Temperature Sensor 2 Circuit Low | -- Check the Engine Coolant Temperature Sensor On Radiator Outlet -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING . |
| P2185 | 18617 | Engine Coolant Temperature Sensor 2 Circuit High | -- Check the Engine Coolant Temperature Sensor On Radiator Outlet -G83-. Refer to Engine Coolant Temperature Sensor On Radiator Outlet -G83-, CHECKING . |
| P2195 | 18627 | O2 Sensor Signal Stuck Lean Bank 1 Sensor 1 | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P2196 | 18628 | O2 Sensor Signal Stuck Rich Bank 1 Sensor 1 | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P22A0 | - | NOx Sensor Bank 1 Sensor 2 Circuit Low | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P22A1 | - | NOx Sensor Bank 1 Sensor 2 Circuit High | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P220A | - | NOx Sensor Supply Voltage Bank 1 Sensor 1 Circuit | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P220B | - | NOx Sensor Supply Voltage Bank 1 Sensor 2 Circuit | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P2200 | - | NOx Sensor Bank 1 Sensor 1 Circuit | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P2201 | - | NOx Sensor Circuit Range/Performance Bank 1 Sensor 1 | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P2202 | - | NOx Sensor Bank 1 Sensor 1 Circuit Low | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P2203 | - | NOx Sensor Bank 1 Sensor 1 Circuit High | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P2237 | 18669 | O2 Sensor Positive Current Control Circuit Bank 1 Sensor 1 Open | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P2243 | 18675 | O2 Sensor Reference Voltage Circuit Bank 1 Sensor 1 Open | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P2251 | 18683 | O2 Sensor Negative Current Control Circuit Bank 1 Sensor 1 open | -- Check the Oxygen Sensor 1 Before Catalytic Converter -GX10-. Refer to Oxygen Sensor 1 Before Catalytic Converter -GX10-, CHECKING . |
| P2263 | 18695 | Turbocharger Boost System Performance | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P2279 | 18711 | Intake Air System Leak | -- Check the Charge Air Pressure Sensor -G31- in the Intake Manifold Sensor -GX9-. Refer to Intake Manifold Sensor -GX9-, CHECKING . |
| P229E | - | NOx Sensor Bank 1 Sensor 2 Circuit | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P229F | - | NOx Sensor Circuit Range/Performance Bank 1 Sensor 2 | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| P2294 | 18726 | Fuel Pressure Regulator 2 Control Circuit | -- Check the Fuel Metering Valve -N290-. Refer to Fuel Metering Valve -N290-, CHECKING . |
| P2295 | 18727 | Fuel Pressure Regulator 2 Control Circuit Low | -- Check the Fuel Metering Valve -N290-. Refer to Fuel Metering Valve -N290-, CHECKING . |
| P2296 | 18728 | Fuel Pressure Regulator 2 Control Circuit High | -- Check the Fuel Metering Valve -N290-. Refer to Fuel Metering Valve -N290-, CHECKING . |
| P240F | - | EGR Slow Response | -- Check all intake ducts and connections for air leaks, including the suction and pressure side of the turbo. Any air leak will distort the calculated airflow numbers and set this fault.-- Check the EGR Valve 1 -GX5-. Refer to EGR Valve 1 -GX5-, CHECKING . |
| P242A | - | Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3 | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P242B | - | Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 3 Range/Performance | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P242C | - | Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 3 | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P2425 | 18857 | Exhaust Gas Recirculation Cooling Valve Control Circuit Open | -- Check the EGR Cooler Switch-Over Valve -N345-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING .-- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P2426 | 18858 | Exhaust Gas Recirculation Cooling Valve Control Circuit Low | -- Check the EGR Cooler Switch-Over Valve -N345-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING .-- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P2427 | 18859 | Exhaust Gas Recirculation Cooling Valve Control Circuit High | -- Check the EGR Cooler Switch-Over Valve -N345-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING .-- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P244C | - | Exhaust Temperature Too Low For Particulate Filter Regeneration Bank 1 | -- If no Exhaust Gas Temperature Sensors -- codes are set, a Service Bay Regeneration should be performed using a VAS 5052 (available for rental) or equivalent scan tool with regeneration capability. |
| P245B | - | Exhaust Gas Recirculation Cooler Bypass Control Circuit Range/Performance | -- Check the EGR Cooler Switch-Over Valve -N345-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING .-- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P2452 | - | Diesel Particulate Filter Differential Pressure Sensor Circuit | -- Check the Differential Pressure Sensor -G505-. Refer to Differential Pressure Sensor -G505-, CHECKING . |
| P2453 | - | Diesel Particulate Filter Differential Pressure Sensor Circuit Range/Performance | -- Check the Differential Pressure Sensor -G505-. Refer to Differential Pressure Sensor -G505-, CHECKING . |
| P2454 | - | Diesel Particulate Filter Differential Pressure Sensor Circuit Low | -- Check the Differential Pressure Sensor -G505-. Refer to Differential Pressure Sensor -G505-, CHECKING . |
| P2458 | - | Diesel Particulate Filter Regeneration Duration | -- The diesel particulate filter (DPF) may have too much restriction due to age and buildup of contaminants. Perform a Service Regeneration. If the filter still shows a restriction, replacement of the DPF will be required. Refer to appropriate service information. |
| P2459 | - | Diesel Particulate Filter Regeneration Frequency | -- The diesel particulate filter (DPF) may have too much restriction due to age and buildup of contaminants. Perform a Service Regeneration. If the filter still shows a restriction, replacement of the DPF will be required. Refer to appropriate service information. |
| P246E | - | Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 4 | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P246F | - | Exhaust Gas Temperature Sensor Circuit Bank 1 Sensor 4 Range/Performance | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P2463 | - | Diesel Particulate Filter - Soot Accumulation | -- A Service Bay Regeneration must be performed using a VAS 5052 (available for rental) or equivalent scan tool. |
| P247A | - | Exhaust Gas Temperature Out of Range Bank 1 Sensor 3 | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P2470 | - | Exhaust Gas Temperature Sensor Circuit Low Bank 1 Sensor 4 | -- Check the Exhaust Gas Temperature Sensors --. Refer to Exhaust Gas Temperature Sensors --, CHECKING . |
| P2564 | 18996 | Turbocharger Boost Control Position Sensor Circuit Low | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P2565 | 18997 | Turbocharger Boost Control Position Sensor Circuit High | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| P261A | - | Coolant Pump "B" Control Circuit/Open | -- Check the EGR Cooler Pump -V400-. Refer to EGR Cooler Pump -V400-, CHECKING . |
| P261C | - | Coolant Pump "B" Control Circuit Low | -- Check the EGR Cooler Pump -V400-. Refer to EGR Cooler Pump -V400-, CHECKING . |
| P261D | - | Coolant Pump "B" Control Circuit High | -- Check the EGR Cooler Pump -V400-. Refer to EGR Cooler Pump -V400-, CHECKING . |
| P310E | - | Exhaust gas recirculation cooler bypass valve 2 Implausible signal | -- Check the EGR Cooling Bypass Valve -N386-. Refer to EGR Cooler Switch-Over Valve -N345- / EGR Cooling Bypass Valve -N386-, CHECKING . |
| P3348 | - | Turbocharger Control Unit Electrical Malfunction in Circuit | -- Check the Turbocharger 1 -VX12-. Refer to Turbocharger 1 -VX12-, CHECKING . |
| U0001 | 28673 | High Speed CAN Communication Bus | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . |
| U0002 | - | High Speed CAN Communication Bus Performance | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . |
| U0028 | - | Vehicle Communication Bus A | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . |
| U0029 | - | Vehicle Communication Bus A Performance | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . |
| U0101 | 28773 | Lost Communication with TCM | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .-- If the TCM CAN Bus test passes, check TCM communication with a scan tool. If no TCM communication with scan tool and all other modules communicate, check TCM power and grounds. If OK, replace TCM Module. |
| U0106 | - | Lost Communication With Glow Plug Control Module | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| U0121 | 28793 | Lost Communication With Anti-Lock Brake System (ABS) Control Module | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .-- If the ABS CAN Bus test passes, check ABS communication with a scan tool. If no ABS communication with scan tool and all other modules communicate, check ABS power and grounds. If OK, replace ABS Module. |
| U0140 | - | Lost Communication With Body Control Module | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .-- If the BCM CAN Bus test passes, check BCM communication with a scan tool. If no BCM communication with scan tool and all other modules communicate, check BCM power and grounds. If OK, replace BCM Module. |
| U0146 | 28818 | Lost Communication With Gateway "A" | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .-- If only 1 module has set this code, the gateway is operational and the fault will be with the module that set the code. Check module power and grounds. If OK, replace the module that does not communicate. |
| U0155 | 28827 | Lost Communication With Instrument Panel Cluster (IPC) Control Module | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING .-- If the IPC CAN Bus test passes, check IPC communication with a scan tool. If no IPC communication with scan tool and all other modules communicate, check IPC power and grounds. If OK, replace IPC Module. |
| U0302 | 28974 | Software Incompatibility with Transmission Control Module | -- Check for correct software in ECM and TCM. If software is incorrect, reflash module with correct software. |
| U0307 | - | Software Incompatibility With Glow Plug Control Module | -- Check part number of Glow Control Unit. Application is incorrect. Replace with correct unit. Refer to appropriate service information. |
| U0402 | 29074 | Invalid Data Received From Transmission Control Module | -- May have VIN error or incorrect software. Check VIN and software number for correct data. |
| U0407 | - | Invalid Data Received From Glow Plug Control Module | -- Check the Automatic Glow Time Control Module -J179- and Glow Plugs. Refer to Automatic Glow Time Control Module -J179- AND GLOW PLUGS, CHECKING . |
| U0415 | 29087 | Invalid Data Received From Anti-Lock Brake System Control Module | -- Refer to appropriate service information for ABS diagnosis. |
| U0423 | - | Invalid Data Received From Instrument Panel Cluster Control Module | -- May have VIN error. Check VIN in each module for correct data. |
| U0447 | - | Invalid Data Received From Gateway "A" | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . |
| U1006 | - | NOx Sensor 1 Bank 1 No communication | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| U1024 | - | Communications Bus Fault | -- Check the CAN-Bus terminal resistance. Refer to CAN-BUS TERMINAL RESISTANCE, CHECKING . |
| U1034 | - | NOx Sensor 1 Bank 1 Implausible Signal | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| U10C1 | - | NOx Sensor 1 Bank 2 Implausible signal | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |
| U10C2 | - | NOx Sensor 1 Bank 2 No Communication | -- Check the NOx Sensor Control Modules --. Refer to NOx Sensor Control Modules --, CHECKING . |