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Diagnostic Trouble Code (DTC) Reference Charts

DTC REFERENCE CHART

DTC Description Circuit Test/Step: KOEO Circuit Test/Step: KOER Circuit Test/Step: CONT.
P0102 Mass Air Flow Circuit Low Input - DC/6  DC/6 
P0103 Mass Air Flow Circuit High Input DC/20  DC/20  DC/20 
P0112 Intake Air Temperature Circuit Low Input  
DA/20 		 DA/20  DA/90 
P0113 Intake Air Temperature Circuit High Input DA/10  DA/10  DA/90 
P0117 Engine Coolant Temperature Circuit Low Input DA/20  DA/20  DA/90 
P0118 Engine Coolant Temperature Circuit High Input DA/10  DA/10  DA/90 
P0121 Throttle Position Circuit Performance Problem - DH/22  DH/22 
P0122 Throttle Position Circuit Low Input DH/11  DH/11  DH/11 
P0123 Throttle Position Circuit High Input DH/8  DH/8  DH/8 
P0125 Insufficient Coolant Temperature For Closed Loop Fuel Control - - DA/100 
P0131 Heated Oxygen Sensor (HO2S-11) Circuit Out Of Range Low Voltage - - H/27 
P0133 Heated Oxygen Sensor (HO2S-11) Circuit Slow Response - - H/20 
P0135
NGV Heated Oxygen Sensor (HO2S-11) Circuit Malfunction HA/30  HA/30  HA/30 
Gas Heated Oxygen Sensor (HO2S-11) Circuit Malfunction H/30  H/30  H/30 
P0136 Heated Oxygen Sensor (HO2S-12) Circuit Malfunction - - H/80 
P0141
NGV Heated Oxygen Sensor (HO2S-12) Circuit Malfunction HA/30  HA/30  HA/30 
Gas Heated Oxygen Sensor (HO2S-12) Circuit Malfunction H/30  H/30  H/30 
P0151 Heated Oxygen Sensor (HO2S-21) Circuit Out of Range Low Voltage - - H/27 
P0153 Heated Oxygen Sensor (HO2S-21) Circuit Slow Response - - H/20 
P0155
NGV Heated Oxygen Sensor (HO2S-21) Circuit Malfunction HA/30  HA/30  HA/30 
Gas Heated Oxygen Sensor (HO2S-21) Circuit Malfunction H/30  H/30  H/30 
P0156 Heated Oxygen Sensor (HO2S-22) Circuit Malfunction - - H/80 
P0161
NGV Heated Oxygen Sensor (HO2S-22) Circuit Malfunction HA/30  HA/30  HA/30 
Gas Heated Oxygen Sensor (HO2S-22) Circuit Malfunction H/30  H/30  H/30 
P0171
NGV System To Lean (Bank 1) - - HA/41 
Gas System To Lean (Bank 1) - - H/41 
P0172
NGV System To Rich (Bank 1) - - HA/41 
Gas System To Rich (Bank 1) - - H/41 
P0174
NGV System To Lean (Bank 2) - - HA/41 
Gas System To Lean (Bank 2) - - H/41 
P0175
NGV System To Rich (Bank 2) - - HA/41 
Gas System To Rich (Bank 2) - - H/41 
P0182 Engine Fuel Temperature Sensor A Circuit Low Input DB/4  DB/4  DB/7 
P0183 Engine Fuel Temperature Sensor A Circuit High Input DB/1  DB/1  DB/7 
P0187 Engine Fuel Temperature Sensor B Circuit Low Input DB/4  DB/4  DB/7 
P0188 Engine Fuel Temperature Sensor B Circuit High Input DB/1  DB/1  DB/7 
P0191 Fuel Rail Pressure Sensor Circuit Performance DD/12  DD/12  -
P0192 Fuel Rail Pressure Sensor Circuit Low Input DD/1  DD/1  DD/12 
P0193 Fuel Rail Pressure Sensor Circuit High Input DD/6  DD/6  DD/11 
P0222 Throttle Position Sensor B Low Input HT/1  HT/1  HT/1 
P0223 Throttle Position Sensor B High Input HT/10  HT/10  HT/10 
P0230
NGV Fuel Pump Primary Circuit Malfunction KC/1  KC/1  KC/40 
Gas Fuel Pump Primary Circuit Malfunction KA/1  KA/1  KA/40 
P0231
NGV Fuel Pump Secondary Circuit Low Input KC/20  KC/20  KC/35 
Gas Fuel Pump Secondary Circuit Low Input KA/20  KA/20  KA/35 
P0232
NGV Fuel Pump Secondary Circuit High Input KC/10  KC/10  KC/30 
Gas Fuel Pump Secondary Circuit High Input KA/10  KA/10  KA/30 
P0300 Random Misfire - HD/1  HD/1 
P0301 Misfire Detection Monitor - Cylinder No. 1 - HD/1  HD/1 
P0302 Misfire Detection Monitor - Cylinder No. 2 - HD/1  HD/1 
P0303 Misfire Detection Monitor - Cylinder No. 3 - HD/1  HD/1 
P0304 Misfire Detection Monitor - Cylinder No. 4 - HD/1  HD/1 
P0305 Misfire Detection Monitor - Cylinder No. 5 - HD/1  HD/1 
P0306 Misfire Detection Monitor - Cylinder No. 6 - HD/1  HD/1 
P0307 Misfire Detection Monitor - Cylinder No. 7 - HD/1  HD/1 
P0308 Misfire Detection Monitor - Cylinder No. 8 - HD/1  HD/1 
P0320 Ignition Engine Speed Input Circuit Malfunction - - NC/1 
P0325 Knock Sensor 1 Circuit Malfunction (Bank 1) - DG/1  DG/1 
P0326 Knock Sensor 1 Circuit Range/Performance (Bank 1) - DG/1  DG/1 
P0330 Knock Sensor 2 Circuit Malfunction (Bank 2) - DG/1  DG/1 
P0331 Knock Sensor 2 Circuit Range/Performance (Bank 2) - DG/1  DG/1 
P0340 Camshaft Position Sensor Circuit Malfunction - DR/1  DR/1 
P0350 Ignition Coil Primary/Secondary Circuit Malfunction - - JE/90 
P0351 Ignition Coil A Primary/Secondary Circuit Malfunction - - JE/90 
P0352 Ignition Coil B Primary/Secondary Circuit Malfunction - - JE/90 
P0353 Ignition Coil C Primary/Secondary Circuit Malfunction - - JE/90 
P0354 Ignition Coil D Primary/Secondary Circuit Malfunction - - JE/90 
P0401 Exhaust Gas Recirculation Flow Insufficient - - HE/70 
P0402 Exhaust Gas Recirculation Flow Excessive - HE/20  HE/20 
P0420 Catalyst System Efficiency Below Threshold (Bank 1) - - HF/1 
P0430 Catalyst System Efficiency Below Threshold (Bank 2) - - HF/1 
P0442 Evaporative Emission Control System Leak Detected (Small Leak) - - HX/1 
P0443 Evaporative Emission Control System Canister Purge Valve Circuit Malfunction HX/11  HX/11  HX/10 
P0446 Evaporative Emission Control System Excessive Fuel Tank Vacuum - - HX/13 
P0452 Fuel Tank Pressure Sensor Circuit Low Voltage HX/22  HX/22  HX/22 
P0453 Fuel Tank Pressure Sensor Circuit High Voltage HX/28  HX/28  HX/28 
P0455 Evaporative Emission Control System Leak Detected (No Purge Flow Or Large Leak) - - HX/39 
P0500 Vehicle Speed Sensor Malfunction - - DP/1 
P0501 Vehicle Speed Sensor Range/Performance - - DP/1 
P0503 Vehicle Speed Sensor Intermittent - - DP/20 
P0505 Idle Air Control System Malfunction - KE/2  -
P0603 Powertrain Control Module KAM Test Error QB/1  - -
P0605 Powertrain Control Module Read Only Memory Error Replace PCM Replace PCM Replace PCM
P0703 Brake Switch Circuit Input Malfunction - - FD/3 
P0705 Digital Transmission Range Circuit Failure (1) - -
P0708 Digital Transmission Range Sensor/Transmission Range Sensor Circuit High Voltage - - (1)
P0712 Transmission Fluid Temperature Sensor Circuit Grounded (1) (1) (1)
P0713 Transmission Fluid Temperature Sensor Circuit Open (1) (1) (1)
P0720 Insufficient Input From Output Shaft Speed Sensor - - (1)
P0721 Noise Interference On Output Shaft Speed Sensor Signal - - (1)
P0741 Torque Converter Clutch Slippage - - (1)
P0743 Torque Converter Clutch Solenoid Circuit Failure (1) (1) (1)
P0750 Shift Solenoid 1 Circuit Failure (1) (1) (1)
P0751 Shift Solenoid 1 Functional Failure - - (1)
P0755 Shift Solenoid 2 Circuit Failure (1) (1) (1)
P0756 Shift Solenoid 2 Functional Failure - - (1)
P0781 1-2 Shift Error - - (1)
P0782 2-3 Shift Error - - (1)
P0783 3-4 Shift Error - - (1)
P1000 Monitor Testing Not Complete (2) (2) QC/1 
P1001 KOER Not Able To Complete, KOER Aborted - QA/1  -
P1100 Mass Air Flow Sensor Intermittent - - DC/3 
P1101 Mass Air Flow Sensor Out Of Self-Test Range DC/2  DC/1  -
P1112 Intake Air Temperature Sensor Intermittent - - DA/90 
P1116 Engine Coolant Temperature Sensor Out Of Self-Test Range DA/1  DA/1  -
P1117 Engine Coolant Temperature Sensor Intermittent - - DA/90 
P1120 Throttle Position Sensor Out Of Range Low (RATCH Too Low) DH/3  DH/3  DH/3 
P1121 Throttle Position Sensor Inconsistent With MAF Sensor - - DH/15 
P1124 Throttle Position Sensor Out Of Self-Test Range DH/1  DH/1  -
P1125 Throttle Position Sensor Intermittent - - DH/20 
P1127
NGV Exhaust Not Warm Enough, Downstream Sensor Not Tested - HA/90  -
Gas Exhaust Not Warm Enough, Downstream Sensor Not Tested - H/100  -
P1128
NGV Upstream Oxygen Sensors Swapped From Bank To Bank (HO2S-11-21) - HA/100  -
Gas Upstream Oxygen Sensors Swapped From Bank To Bank (HO2S-11-21) - H/110  -
P1129
NGV Downstream Oxygen Sensors Swapped From Bank To Bank (HO2S-12-22) - HA/100  -
Gas Downstream Oxygen Sensors Swapped From Bank To Bank (HO2S-12-22) - H/110  -
P1130
NGV Lack Of HO2S-11 Switch, Fuel Trim At Limit - - HA/40 
Gas Lack Of HO2S-11 Switch, Fuel Trim At Limit - - H/40 
P1131
NGV Lack Of HO2S-11 Switch, Sensor Indicates Lean - HA/40  HA/40 
Gas Lack Of HO2S-11 Switch, Sensor Indicates Lean - H/40  H/40 
P1132
NGV Lack Of HO2S-11 Switch, Sensor Indicates Rich - HA/40  HA/40 
Gas Lack Of HO2S-11 Switch, Sensor Indicates Rich - H/40  H/40 
P1137
NGV Lack Of HO2S-12 Switch, Sensor Indicates Lean - HA/80  -
Gas Lack Of HO2S-12 Switch, Sensor Indicates Lean - H/80  -
P1138
NGV Lack Of HO2S-12 Switch, Sensor Indicates Rich - HA/80  -
Gas Lack Of HO2S-12 Switch, Sensor Indicates Rich - H/80  -
P1220 Series Throttle Control System Malfunction HT/20  HT/20  HT/20 
P1224 Throttle Position Sensor B Voltage Out Of Range HT/40  HT/40  HT/40 
P1260 Theft Detected - Vehicle Immobilized - - QD/1 
P1270 Engine RPM/Vehicle Speed Limiter - - ND/1 
P1285 Cylinder Head Over Temperature Sensed - - DL/30 
P1288 Cylinder Head Temperature Sensor Circuit Out Of Self-Test Range DL/1  DL/1  -
P1289 Cylinder Head Temperature Sensor Circuit High Input DL/10  DL/10  DL/90 
P1290 Cylinder Head Temperature Sensor Circuit Low Input DL/20  DL/20  DL/90 
P1299 Cylinder Head Over Temperature Protection Active - - DL/100 
P1309 Misfire Monitor Disabled - - HD/40 
P1390 Octane Adjust FG/1  - -
P1400 Differential Pressure Feedback Exhaust Gas Recirculation Sensor Circuit Low Voltage HE/1  HE/1  HE/1 
P1401 Differential Pressure Feedback Exhaust Gas Recirculation Sensor Circuit High Voltage HE/10  HE/10  HE/10 
P1405 Differential Pressure Feedback Exhaust Gas Recirculation Sensor Upstream Hose Off Or Plugged - - HE/50 
P1406 Differential Pressure Feedback Exhaust Gas Recirculation Sensor Downstream Hose Off Or Plugged - - HE/60 
P1408 Exhaust Gas Recirculation Flow Out Of Self-Test Range - HE/71  -
P1409 Exhaust Gas Recirculation Vacuum Regulator Solenoid Circuit Malfunction HE/110  HE/110  HE/120 
P1442 Evaporative Emission Control System Leak Detected (Small Leak) - - HX/1 
P1443 Very Small Or No Purge Flow Condition - - HW/6 
P1444 Purge Flow Sensor Circuit Low Input - - HW/27 
P1445 Purge Flow Sensor Circuit High Input - - HW/33 
P1450 Evaporative Emission Control System Excessive Fuel Tank Vacuum - - HX/56 
P1451 Evaporative Emission Control System Canister Vent Solenoid Circuit Malfunction HX/65  HX/65  HX/65 
P1452 Evaporative Emission Control System Unable To Bleed Up Fuel Tank Vacuum - - HX/56 
P1455 Evaporative Emission Control System Detected A Large Leak Or No Purge Flow - - HX/40 
P1460 Wide Open Throttle A/C Cutout Primary Circuit Malfunction KM/1  KM/1  KM/30 
P1464 A/C Demand Out Of Self-Test Range KM/19  KM/19  -
P1474 Low Fan Control Primary Circuit Failure KF/1  KF/1  KF/10 
P1479 Low Fan Control Primary Circuit Failure KF/1  KF/1  KF/20 
P1500 Vehicle Speed Sensor Intermittent - - DP/25 
P1501 Vehicle Speed Sensor Out Of Self Test Range - DP/15  -
P1504 Idle Air Control Circuit Malfunction KE/2  KE/2  KE/2 
P1505 Idle Air Control System Reached Idle Air Trim Limit KE/25  KE/25  KE/25 
P1506 Idle Air Control Overspeed Error - KE/20  KE/20 
P1507 Idle Air Control Underspeed Error - KE/2  KE/2 
P1605 Keep Alive Memory Test Failure QB/1  - -
P1650 Power Steering Pressure Switch Malfunction FF/1  FF/1  -
P1651 Power Steering Pressure Switch Signal Malfunction - FF/1  FF/1 
P1703 Brake Switch Out Of Self-Test Range FD/2  FD/1  -
P1705 Transmission Range Sensor Out Of Self-Test Range (1) (1) -
P1710 Transmission Fluid Temperature Sensor In Range Malfunction (1) (1) (1)
P1711 Transmission Fluid Temperature Out Of Range (1) (1) (1)
P1714 Shift Solenoid 1 Malfunction - - (1)
P1715 Shift Solenoid 2 Malfunction - - (1)
P1728 Transmission Slippage Error - - (1)
P1731 1-2 Shift Error - - (1)
P1732 2-3 Shift Error - - (1)
P1733 3-4 Shift Error - - (1)
P1740 Torque Converter Clutch Malfunction - - (1)
P1741 Excessive Torque Converter Clutch Engagement Error - - (1)
P1742 Torque Converter Clutch Solenoid Failed ON - - (1)
P1743 Torque Converter Clutch Solenoid Failed ON - - (1)
P1744 Excessive Torque Converter Clutch Slippage - - (1)
P1746 Shorted Powertrain Control Module Output Driver (1) - (1)
P1747 Electronic Pressure Control Solenoid Circuit Failure (1) - (1)
P1751 Shift Solenoid 1 Functional Failure - - (1)
P1756 Shift Solenoid 2 Functional Failure - - (1)
P1767 Torque Converter Clutch Solenoid Circuit Failure (1) - (1)
P1780 Transmission Control Switch Out Of Self-Test Range - TB/1 -
P1783 Transmission Fluid Temperature Exceeded - - (1)
U1020 Module Communication Network Failure - - (3)
U1039 Module Communication Network Failure - - (3)
U1051 Module Communication Network Failure - - (3)
U1073 SCP Invalid Or Missing For Engine Coolant - - (3)
U1135 Module Communication Network Failure - - (3)
U1341 SCP Invalid Or Missing For Function Read Vehicle Speed - - (3)
U1451 Module Communication Network Failure - - (3)
(1) Transmission/transaxle fault is indicated. See appropriate AUTOMATIC TRANSMISSION article.
(2) DTC P1000 indicates that OBD-II drive cycle has not been completed. Disregard this DTC in KOEO and KOER self-test and continue as directed.
(3) Module communication network failure is indicated. See appropriate MODULE COMMUNICATION NETWORK article in ACCESSORIES & EQUIPMENT.
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