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Engine- Tests W/Codes Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Summary Diagnostic Trouble Codes Notes DTC P0101 - MAF Sensor System Performance DTC P0102 - MAF Sensor Circuit Low Frequency DTC P0103 - MAF Sensor Circuit High Frequency DTC P0107 - Map Sensor Circuit Low Voltage DTC P0108 - Map Sensor Circuit High Voltage IAT Temperature-To-Resistance Values DTC P0112 - IAT Sensor Circuit Low Voltage DTC P0113 - IAT Sensor Circuit High Voltage ECT Temperature-To-Resistance Values DTC P0117 - ECT Sensor Circuit Low Voltage DTC P0118 - ECT Sensor Circuit Voltage High DTC P0125 - ECT Excessive Time To Reach Closed Loop DTC P0131 - Ho2S Circuit Voltage Low Bank 1, Sensor No. 1 DTC P0132 - Ho2S Circuit Voltage High Bank 1, Sensor No. 1 DTC P0132 - Ho2S Circuit Voltage High Bank 1, Sensor 1 DTC P0133 - Ho2S Slow Response Bank 1, Sensor No. 1 DTC P0134 - Ho2S Insufficient Activity Bank 1, Sensor No. 1 DTC P0135 - Ho2S Heater Circuit Bank 1, Sensor No. 1 DTC P0137 - Ho2S Circuit Voltage Low Bank 1, Sensor No. 2 DTC P0138 - Ho2S Circuit Voltage High Bank 1, Sensor No. 2 DTC P0138 - Ho2S Circuit Voltage High Bank 1, Sensor 2 DTC P0140 - Ho2S Insufficient Activity Bank 1, Sensor No. 2 DTC P0141 - Ho2S Heater Circuit Bank 1, Sensor No. 2 DTC P0151 - Ho2S Circuit Voltage Low Bank 2, Sensor No. 1 DTC P0152 - Ho2S Circuit Voltage High Bank 2, Sensor No. 1 DTC P0153 - Ho2S Slow Response Bank 2 Sensor No. 1 DTC P0154 - Ho2S Insufficient Activity Bank 2, Sensor No. 1 DTC P0155 - Ho2S Heater Circuit Bank 2, Sensor No. 1 DTC P0157 - Ho2S Circuit Voltage Low Bank 2, Sensor No. 2 DTC P0158 - Ho2S Circuit Voltage High Bank 2 Sensor 2 DTC P0160 - Ho2S Insufficient Activity Bank 2, Sensor No. 2 DTC P0161 - Ho2S Heater Circuit Bank 2, Sensor 2 DTC P0171 - Fuel Trim System Lean Bank 1 DTC P0172 - Fuel Trim System Rich Bank 1 DTC P0174 - Fuel Trim System Lean Bank 2 DTC P0175 - Fuel Trim System Rich Bank 2 DTC P0230 - Fuel Pump Control Circuit DTC P0300-P0308 - Engine Misfire Detected DTC P0325 - Knock Sensor Module Circuit DTC P0327 - Knock Sensor Circuit Front DTC P0332 - Knock Sensor Circuit DTC P0335 - Crankshaft Position (CKP) Sensor Circuit DTC P0336 - Crankshaft Position Sensor Circuit Performance DTC P0341 - Camshaft Position Sensor Circuit Performance DTC P0342 - Camshaft Position Sensor Circuit Low Voltage DTC P0343 - Camshaft Position Sensor Circuit High Voltage DTC P0351 - Ignition Control No. 1 Circuit DTC P0352 - Ignition Control No. 2 Circuit DTC P0353 - Ignition Control No. 3 Circuit DTC P0354 - Ignition Control No. 4 Circuit DTC P0355 - Ignition Control No. 5 Circuit DTC P0356 - Ignition Control No. 6 Circuit DTC P0357 - Ignition Control No. 7 Circuit DTC P0358 - Ignition Control No. 8 Circuit DTC P0410 - Air System DTC P0412 - Air Solenoid Relay Control Circuit DTC P0418 - Air Pump Relay Control Circuit DTC P0420 - TWC System Low Efficiency Bank 1 DTC P0430 - TWC System Low Efficiency Bank 2 DTC P0441 - EVAP System No Flow During Purge DTC P0443 - EVAP Purge Solenoid Control Circuit DTC P0461 - Fuel Level Sensor Circuit Performance DTC P0462 - Fuel Level Sensor Circuit Voltage Low DTC P0463 - Fuel Level Sensor Circuit Voltage High DTC P0480 - Cooling Fan Relay No. 1 Control Circuit DTC P0481 - Cooling Fan Relay No. 2 & 3 Control Circuit DTC P0500 - Vehicle Speed Sensor Circuit DTC P0506 - Idle System Low DTC P0507 - Idle Speed High DTC P0522 - Engine Oil Pressure Sensor Circuit Low Voltage DTC P0523 - Engine Oil Pressure Sensor Circuit High Voltage DTC P0530 - A/C Refrigerant Pressure Sensor Circuit DTC P0562 - System Voltage Low DTC P0563 - System Voltage High DTC P0567 - Cruise Resume Circuit DTC P0568 - Cruise Set Circuit DTC P0571 - Cruise Brake Switch Circuit DTC P0601 - Pcm Memory DTC P0602 - Pcm Not Programmed DTC P0604 - Pcm Ram Performance DTC P0606 - Pcm Internal Communication Interrupted DTC P0608 - VSS Output Circuit DTC P0650 - Mil Control Circuit DTC P0654 - Engine Speed Output Circuit DTC P0704 - Clutch Switch Circuit DTC P0705 - Transmission Range Switch Circuit DTC P0706 - Transmission Range Switch Performance DTC P0801 - Reverse Inhibit Solenoid Control Circuit DTC P0803 - 1-4 Upshift Solenoid Control Circuit DTC P0804 - 1-4 Upshift Light Control Circuit DTC P1111 - IAT Sensor Circuit Intermittent High Voltage DTC P1112 - IAT Sensor Circuit Intermittent Low Voltage DTC P1114 - ECT Sensor Circuit Intermittent Low Voltage DTC P1115 - ECT Sensor Circuit Intermittent High Voltage DTC P1120 - TP Sensor No. 1 Circuit DTC P1125 - App System DTC P1133 - Ho2S Insufficient Switching Bank 1, Sensor 1 DTC P1134 - Ho2S Transition Time Ratio Bank 1, Sensor 1 DTC P1153 - Ho2S Insufficient Switching Bank 2, Sensor 1 DTC P1154 - Ho2S Transition Time Ratio Bank 2, Sensor 1 DTC P1220 - TP Sensor No. 2 Circuit DTC P1221 - TP Sensor No. 1 & 2 Performance DTC P1258 - Engine Coolant Over-Temperature Fuel Disabled DTC P1275 - App Sensor No. 1 Circuit DTC P1276 - App Sensor No. 1 Performance DTC P1280 - App Sensor No. 2 Circuit DTC P1281 - App Sensor No. 2 Performance DTC P1285 - App Sensor No. 3 Circuit DTC P1286 - App Sensor No. 3 Performance DTC P1380 - Abs DTC Rough Road Data Unstable DTC P1381 - Misfire Detected, No EBCM/Pcm Serial Data DTC P1415 - Air System Bank 1 DTC P1416 - Air System Bank 2 DTC P1431 - Fuel Level Sensor No. 2 (Right Side) Circuit Performance DTC P1432 - Fuel Level Sensor No. 2 (Right Side) Circuit Low Voltage DTC P1433 - Fuel Level Sensor No. 2 (Right Side) Circuit High Voltage DTC P1441 - EVAP System Flow During Non-Purge DTC P1514 - TAC System MAF Performance DTC P1515 - Command Vs Actual TP Performance (Pcm) DTC P1516 - Command Vs Actual TP Performance (TAC) DTC P1517 - TAC Module Processor Serial Data Circuit DTC P1518 - Pcm To TAC Module Serial Data Circuit DTC P1539 - A/C Clutch Status Circuit Voltage High DTC P1545 - A/C Clutch Relay Control Circuit DTC P1546 - A/C Clutch Status Circuit Voltage Low DTC P1571 - ASR Desired Torque Circuit DTC P1574 - Stoplight Control Circuit DTC P1575 - Extended Travel Brake Switch Circuit High DTC P1626 - Theft Deterrent System Fuel Enable Circuit DTC P1630 - Theft Deterrent System Pcm In Learn Mode DTC P1631 - Theft Deterrent System Password Incorrect DTC P1635 - 5-Volt Reference No. 1 Circuit DTC P1639 - 5-Volt Reference No. 2 Circuit DTC P1644 - Delivered Torque Output Circuit DTC P1652 - Pcm Chassis Pitch Output Circuit