October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
Engine Controls - Tests W/Codes - Engine Performance Expand All (for easy ctrl-f) Collapse All Model Identification Introduction Self-Diagnostic System Summary Inactive DTC Condition Fuel Pressure Release Connector Identification Self-Diagnostic Tests Notes Test TC-1A: No Cam Signal At Pcm Test TC-1B: No Cam Signal At Pcm Test TC-1C: No Cam Signal At Pcm Test TC-5A: Charging System Voltage Too Low Test TC-5B: Charging System Voltage Too Low Test TC-6A: Charging System Voltage Too High Test TC-6B: Charging System Voltage Too High Test TC-10A: Auto Shutdown Relay Control Circuit Test TC-11A: Generator Field Not Switching Properly Test TC-12A: Torque Converter Clutch (TCC) Solenoid/Trans Relay Circuit Test TC-12B: Torque Converter Clutch (TCC) Solenoid/Trans Relay Circuit Test TC-12C: Torque Converter Clutch (TCC) Solenoid/Trans Relay Circuit Test TC-12D: Torque Converter Clutch (TCC) Solenoid/Trans Relay Circuit Test TC-12E: Torque Converter Clutch (TCC) Solenoid/Trans Relay Circuit Test TC-12F: Torque Converter Clutch (TCC) Solenoid/Trans Relay Circuit Test TC-14A: Rad Fan Control Relay Circuit Test TC-15A: Speed Control Solenoid Circuits Test TC-15B: Speed Control Solenoid Circuits Or Speed Control Power Relay Circuits Test TC-15C: Speed Control Solenoid Circuits Or Speed Control Power Relay Circuits Test TC-16A: A/C Clutch Relay Circuit Test TC-17A: EGR Solenoid Circuit Test TC-18A: EVAP Purge Solenoid Circuit Test TC-19A: Injector #3 Control Circuit Test TC-20A: Injector #2 Control Circuit Test TC-21A: Injector Control Circuits Test TC-21B: Injector #1 Control Circuit Test TC-25A: Idle Air Control Motor Circuits Test TC-25B: Idle Air Control Motor Circuits Test TC-25C: Idle Air Control Motor Circuits Test TC-25D: Idle Air Control Motor Circuits Test TC-25E: Idle Air Control Motor Circuits Test TC-26A: Throttle Position Sensor Voltage Low Test TC-27A: Throttle Position Sensor Voltage High Test TC-30A: ECT Sensor Voltage Too Low Test TC-31A: ECT Sensor Voltage Too High Test TC-35A: No Vehicle Speed Sensor Signal Test TC-35B: No Vehicle Speed Sensor Signal Test TC-36A: Map Sensor Voltage Too Low Or No 5 Volts To Map Sensor Test TC-37A: Map Sensor Voltage Too High Test TC-39A: No Change In Map From Start To Run Test TC-40A: No Crank Reference Signal At Pcm Test TC-40B: No Crank Reference Signal At Pcm Test TC-40C: No Crank Reference Signal At Pcm Test TC-41A: Ignition Coil #3 Primary Circuit Test TC-42A: Ignition Coil #2 Primary Circuit Test TC-43A: Ignition Coil #1 Primary Circuit Test TC-43B: Ignition Coil #1 Primary Circuit Test TC-44A: No ASD Relay Output Voltage At Pcm Test TC-44B: No ASD Relay Output Voltage At Pcm Test TC-48A: Pcm Failure Sri Mile Not Stored Test TC-49A: Pcm Failure EEPROM Write Denied Test TC-50A: Trans 3-4 Solenoid/ Trans Relay Circuits Test TC-50B: Trans 3-4 Solenoid/ Trans Relay Circuits Test TC-50C: Trans 3-4 Solenoid/ Trans Relay Circuits Test TC-50D: Trans 3-4 Solenoid/ Trans Relay Circuits Test TC-50E: Trans 3-4 Solenoid/ Trans Relay Circuits Test TC-55A: Injector #9 Control Circuit Test TC-56A: Injector #10 Control Circuit Test TC-57A: Intake Air Temperature Sensor Voltage Low Test TC-58A: Intake Air Temperature Sensor Voltage High Test TC-61A: Injector #4 Control Circuit Test TC-62A: 1/1 O2 Sensor Shorted To Voltage Test TC-62B: 1/1 O2 Sensor Shorted To Voltage Test TC-62C: 1/1 O2 Sensor Shorted To Voltage Test TC-66A: 2/1 O2 Sensor Shorted To Voltage Test TC-69A: Injector #5 Control Circuit Test TC-70A: Injector #6 Control Circuit Test TC-74A: Trans Temp Sensor Voltage Too Low Test TC-74B: Trans Temp Sensor Voltage Too Low Test TC-75A: Trans Temp Sensor Voltage Too High Test TC-75B: Trans Temp Sensor Voltage Too High Test TC-75C: Trans Temp Sensor Voltage Too High Test TC-76A: Ignition Coil #4 Primary Circuit Test TC-77A: Ignition Coil #5 Primary Circuit Test TC-79A: Injector #7 Control Circuit Test TC-80A: Injector #8 Control Circuit Test TC-82A: Speed Control Power Relay Or 12-Volt Driver Circuit Test TC-82B: Speed Control Solenoid Circuits Or Speed Control Power Relay Circuits Test TC-82C: Speed Control Solenoid Circuits Or Speed Control Power Relay Circuits Test TC-87A: Speed Control Switch Always Low Test TC-101A: Fuel Pump (System) Relay Control Circuit Test TC-102A: 1/1 O2 Sensor Slow Response Test TC-103A: 1/1 O2 Sensor Heater Failure Test TC-103B: 1/1 O2 Sensor Heater Failure Test TC-104A: 1/2 O2 Sensor Slow Response Test TC-105A: 1/2 O2 Sensor Heater Failure Test TC-105B: 1/1 O2 Sensor Heater Failure Test TC-106A: Multiple Cylinder Misfire Test TC-106B: Multiple Cylinder Misfire Test TC-107A: Cylinder #1, #2, #3, #4, #5, #6, #7, #8, #9 Or #10 Misfire Test TC-112A: Catalyst 1/1 Efficiency Failure Test TC-113A: EVAP Purge Flow Monitor Failure Test TC-113B: EVAP Purge Flow Monitor Failure Test TC-113C: EVAP Purge Flow Monitor Failure Test TC-114A: P/N Switch Stuck In Park Or In Gear Test TC-114B: P/N Switch Stuck In Park Or In Gear Test TC-115A: Power Steering Switch Failure Test TC-118A: Fuel System 1/1 Rich Test TC-118B: Fuel System 1/1 Rich Test TC-119A: Fuel System 1/1 Lean Test TC-119B: Fuel System 1/1 Lean Test TC-120A: Fuel System 2/1 Rich Test TC-120B: Fuel 2/1 System Rich Test TC-121A: Fuel System 2/1 Lean Test TC-121B: Fuel System 2/1 Lean Test TC-122A: 2/1 O2 Sensor Slow Response Test TC-124A: 2/1 O2 Sensor Heater Failure Test TC-126A: 1/2 O2 Sensor Shorted To Voltage Test TC-126B: 1/2 O2 Sensor Shorted To Voltage Test TC-126C: 1/2 O2 Sensor Shorted To Voltage Test TC-128A: Closed Loop Temperature Not Reached Test TC-132A: TPS Voltage Does Not Agree With Map Test TC-135A: No 5 Volts To Map Sensor Test TC-138A: Target Idle Not Reached Test TC-138B: Target Idle Not Reached Test TC-140A: EGR System Failure Test TC-141A: Governor Pressure Not Equal To Target @ 15-20 Psi Test TC-141B: Governor Pressure Not Equal To Target @ 15-20 Psi Test TC-141C: Governor Pressure Not Equal To Target @ 15-20 Psi Test TC-141D: Governor Pressure Not Equal To Target @ 15-20 Psi Test TC-141E: Governor Pressure Not Equal To Target @ 15-20 Psi Test TC-142A: Governor Pressure Above 3 Psi In Gear With 0 Mph Test TC-142B: Governor Pressure Above 3 Psi In Gear With 0 Mph Test TC-142C: Governor Pressure Above 3 Psi In Gear With 0 Mph Test TC-144A: 1/3 O2 Sensor Shorted To Ground Test TC-147A: 1/3 O2 Sensor Shorted To Voltage Test TC-148A: TORQ CONV CLU, No Rpm Drop At Lockup Test TC-148B: TORQ CONV CLU No, Rpm Drop At Lockup Test TC-148C: TORQ CONV CLU No, Rpm Drop At Lockup Test TC-148D: TORQ CONV CLU No, Rpm Drop At Lockup Test TC-149A: Fuel Level Sending Unit Volts Too Low Test TC-149B: Fuel Level Sending Unit Volts Too Low Test TC-150A: Fuel Level Sending Unit Volts Too High Test TC-150B: Fuel Level Sending Unit Volts Too Low Test TC-151A: Fuel Level Unit No Change Over Miles Test TC-153A: Battery Temp Sensor Voltage Too Low/Too High Test TC-153B: Battery Temp Sensor Voltage Too Low/Too High Test TC-155A: 1/1 O2 Sensor Voltage Shorted To Ground Test TC-156A: 1/2 O2 Sensor Voltage Shorted To Ground Test TC-157A: Intermittent Loss Of CMP Or CKP Test TC-157B: Intermittent Loss Of CMP Or CKP Test TC-157C: Intermittent Loss Of CMP Or CKP Test TC-157D: Intermittent Loss Of CMP Or CKP Test TC-160A: EVAP Leak Monitor Small Leak Detected Test TC-161A: EVAP Leak Monitor Large Leak Detected Test TC-162A: No Temp Rise Seen From Intake Air Heaters Test TC-162B: No Temp Rise Seen From Intake Air Heaters Test TC-164A: Trans Temp Sensor No Rise After Start Test TC-164B: Trans Temp Sensor No Rise After Start Test TC-165A: 3-4 Shift Solenoid No Rpm Drop @ 3-4 Shift Test TC-165B: 3-4 Shift Solenoid No Rpm Drop 3-4 Shift Test TC-166A: Low Output Speed Sensor Rpm Above 15 Mph Test TC-166B: Low Output Speed Sensor Rpm Above 15 Mph Test TC-167A: Governor Pressure Sensor Volts Too Low Test TC-167B: Governor Pressure Sensor Volts Too Low Test TC-168A: Governor Pressure Sensor Volts Too High Test TC-168B: Governor Pressure Sensor Volts Too High Test TC-168C: Governor Pressure Sensor Volts Too High Test TC-169A: Gov Press Sen Offset Volts Too Low Or Too High Test TC-169B: Gov Press Sen Offset Volts Too Low Or Too High Test TC-171A: Governor Pressure Solenoid/Trans Relay Circuits Test TC-171B: Governor Pressure Solenoid/Trans Relay Circuits Test TC-171C: Governor Pressure Solenoid/Trans Relay Circuits Test TC-171D: Governor Pressure Solenoid Circuit Test TC-171E: Governor Pressure Solenoid Circuit Test TC-173A: Trans 12-Volt Supply Relay CNTRL Circuit Test TC-173B: Trans 12-Volt Supply Relay CNTRL Circuit Test TC-181A: 2/1 O2 Sensor Voltage Shorted To Ground Test TC-183A: Leak Detection Pump Solenoid Circuit Test TC-184A: Leak Detection Pump SW Or Mechanical Fault Test TC-186A: Misfire Adaptive Numerator At Limit Test TC-187A: EVAP Leak Monitor Pinched Hose Test TC-188A: O/D Switch Pressed (Lo) More Than 5 Minutes Test TC-188B: O/D Switch Pressed (Lo) More Than 5 Minutes Test TC-189A: 1/3 O2 Sensor Heater Failure Test TC-192A: 1/1 O2 Sensor Slow During Catalyst Monitor Test TC-194A: 1/2 O2 Sensor Slow During Catalyst Monitor TC-195A: Fuel Injection Pump Timing Failure Test TC-196A: DTC Detected In Pcm Test TC-197A: DTC Detected In Companion Module Test NTC-1A: No Trouble Code Test Menu Test NTC-1B: No Trouble Code Test Menu Test NTC-2A: Checking Secondary Ignition & Timing Test NTC-3A: Checking Pcm Power & Ground Circuits Test NTC-4A: Checking Engine Vacuum Test NTC-5A: Checking Fuel Delivery Test NTC-6A: Checking Engine Coolant Temperature Sensor Calibration Test NTC-7A: Checking Throttle Position Sensor Calibration Test NTC-8A: Checking Map Sensor Calibration Test NTC-9A: Checking Minimum Idle Airflow Test NTC-10A: Checking Oxygen Sensor Switching Test NTC-10B: Checking Oxygen Sensor Switching Test NTC-11A: Checking Oxygen Sensor Heater Test NTC-12A: Checking Idle Air Control Motor Test NTC-12B: Checking Idle Air Control Motor Test NTC-13A: Checking Engine Mechanical Systems (Gasoline Engines) Test NTC-13B: Checking Engine Mechanical Systems (Diesel Engines) Test NTC-15A: Checking Battery Temperature Sensor Test NTC-16A: Checking Brake Switch Test NTC-17A: Checking EVAP System Test NTC-17B: Checking EVAP System Test NTC-18A: Checking EGR System Test NTC-19A: Checking Intake Air Temperature Sensor Test NTC-20A: Checking Park/Neutral Switch Test NTC-21A: Checking Oil Pressure Sensor Test NTC-21B: Checking Oil Pressure Sensor Test NTC-25A: Checking Fuel Level Sensor Test NTC-26A: Checking A/C System Test NTC-26B: Checking A/C System Test NTC-27A: Checking Radiator Fan Operation Test NTC-29A: Checking Fuel Heater Relay Test NTC-30A: Checking Intake Air Heater #1 Test NTC-30B: Checking Intake Air Heater #1 Test NTC-31A: Checking Intake Air Heater #2 Test NTC-31B: Checking Intake Air Heater #2 Test NTC-32A: Checking Wait-To-Start Light Test NTC-33A: Checking Water-In-Fuel Light & Sensor Test NTC-33B: Checking Water-In-Fuel Light & Sensor Test NS-SEL: No Start Selection Menu Test NS-1A: Qualifying No Start Condition Test NS-2A: Checking Fuel System (Gasoline) Test NS-3A: Checking Engine Mechanical System Test NS-4A: Repairing Low Fuel Pressure Test NS-5A: Checking Fuel Pump Test NS-6A: Repairing No Response Condition Test NS-6B: Repairing No Response Condition Test NS-6C: Repairing No Response Condition Test NS-6D: Repairing No Response Condition Test NS-6E: Repairing No Response Condition Test NS-7A: Checking Idle Air Control Motor Test NS-7B: Idle Air Control Motor Circuits Test NS-7C: Idle Air Control Motor Circuits Test NS-7D: Idle Air Control Motor Circuits Test NS-7E: Idle Air Control Motor Circuits Test NS-8A: Repairing Start & Stall Condition Test NS-9A: Repairing No Crank Condition Test NS-9B: Repairing No Crank Condition Test NS-9C: Repairing No Crank Condition Test NS-10A: Repairing No Crank Condition Test NS-14A: Checking Fuel Heater Relay With Engine Temperature Less Than 40°F (4.4°C) Test NS-15A: Checking Fuel Shutdown Relay & Solenoid (Diesel) Test VER-1A: No Start Verification Test VER-2A: Road Test Verification Test VER-3A: Charging Verification Test VER-4A: Speed Control Verification Test VER-5A: Road Test For OBD-II Trouble Codes Test VER-6A: Leak Detection Pump (LDP) Verification DTC P0217: Dec Eng PERF Due To Eng Overheat Condition (Diesel) DTC P0230: Transfer Pump Circuit Out Of Range (Diesel) DTC P0336: Crankshaft Position Sensor Signal (Diesel) DTC P0380: Intake Air Heater Relay #1 Control Circuit (Diesel) DTC P0523: Oil Pressure Voltage Too High (Diesel) DTC P0602: ECM Fueling Calibration Error (Diesel) DTC P1689: No Communication Between ECM & Injection Pump Module (Diesel) DTC P1690: Fuel Injection Pump CKP Sensor Does Not Agree With ECM CKP (Diesel)