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Engine Controls - Tests W/Codes Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System Diagnostic Trouble Code Definitions Diagnostic Tests Notes DTC P0101 - Mass Airflow (MAF) Sensor Circuit Performance DTC P0102 - Mass Airflow (MAF) Sensor Circuit/Low Frequency DTC P0103 - Mass Airflow (MAF) Sensor Circuit/High Frequency DTC P0106 - Manifold Absolute Pressure (Map) Sensor Circuit Performance DTC P0107 - Manifold Absolute Pressure (Map) Sensor Circuit/Low Voltage DTC P0108 - Manifold Absolute Pressure (Map) Sensor Circuit/High Voltage DTC P0112 - Intake Air Temperature (IAT) Circuit/Low Voltage DTC P0113 - Intake Air Temperature (IAT) Circuit/High Voltage DTC P0117 - Engine Coolant Temperature (ECT) Circuit/Low Voltage DTC P0118 - Engine Coolant Temperature (ECT) Circuit/High Voltage DTC P0121 - Throttle Position (TP) Sensor Circuit Performance DTC P0122 - Throttle Position (TP) Sensor Circuit/Low Voltage DTC P0123 - Throttle Position (TP) Sensor Circuit/Low Voltage DTC P0125 - Insufficient Coolant Temperature For Closed Loop DTC P0131 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 1/Low Voltage DTC P0132 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 1/High Voltage DTC P0133 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 1/Slow Response DTC P0134 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 1/Insufficient Activity DTC P0135 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 1/Heater Circuit DTC P0137 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 1/Low Voltage DTC P0138 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 1/High Voltage DTC P0140 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 1/Insufficient Activity DTC P0141 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 1/Heater Circuit DTC P0143 - Heated Oxygen Sensor (Ho2S) No. 3 Bank 1/Low Voltage DTC P0144 - Heated Oxygen Sensor (Ho2S) No. 3 Bank 1/High Voltage DTC P0146 - Heated Oxygen Sensor (Ho2S) No. 3 Bank 1/Insufficient Activity DTC P0147 - Heated Oxygen Sensor (Ho2S) No. 3 Bank 1/Heater Circuit DTC P0151 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 2/Low Voltage DTC P0152 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 2/High Voltage DTC P0153 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 2/Slow Response DTC P0154 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 2/Insufficient Activity DTC P0155 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 2/Heater Circuit DTC P0157 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 2/Low Voltage DTC P0158 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 2/High Voltage DTC P0160 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 2/Insufficient Activity DTC P0161 - Heated Oxygen Sensor (Ho2S) No. 2 Bank 2/Heater Circuit DTC P0171 - Bank 1 System Too Lean DTC P0172 - Bank 1 System Too Rich DTC P0174 - Bank 2 System Too Lean DTC P0175 - Bank 2 System Too Rich DTC P0201, P0202, P0203, P0204, P0205, P0206 - Injector Circuit No. 1-6 DTC P0300 - Random Misfire Detected DTC P0301, P0302, P0303, P0304, P0305, P0306 - Cylinder No. 1-6 Misfire DTC P0325 - Knock Filter Module DTC P0327 - Knock Sensor (KS) Circuit DTC P0336 - Crankshaft Position (CKP) Sensor 58X Reference Signal Circuit DTC P0337 - Crankshaft Position (CKP) Sensor Circuit/Low Frequency DTC P0341 - Camshaft Position (CMP) Sensor Circuit Performance DTC P0342 - Camshaft Position (CMP) Sensor Circuit Low DTC P0351, P0352, P0353, P0354, P0355, P0356 - Ignition Circuit No. 1-6 DTC P0401 - EGR Flow Insufficient DTC P0420, P0430 - Low Catalyst Efficiency Bank 1 And 2 (Auto Trans) DTC P0420, P0430 - Low Catalyst Efficiency Bank 1 And 2 (Man. Trans) DTC P0440 - EVAP System DTC P0442 - EVAP System Small Leak Detected DTC P0446 - EVAP Canister Vent Blocked DTC P0461 - Fuel Level Sensor Circuit Performance DTC P0462 - Fuel Level Sensor Circuit Low Voltage DTC P0463 - Fuel Level Sensor Circuit High Voltage DTC P0502 - Vehicle Speed Sensor (VSS) Circuit/Low Input DTC P0506 - Idle Control System Low Rpm DTC P0507 - Idle Control System High Rpm DTC P0562 - System Low Voltage DTC P0563 - System High Voltage DTC P0601 - Pcm Memory Error DTC P1106 - Map Sensor Circuit Intermittent High Voltage DTC P1107 - Map Sensor Circuit Intermittent Low Voltage 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 P1121 - TP Sensor Circuit Intermittent High Voltage DTC P1122 - TP Sensor Circuit Intermittent Low Voltage DTC P1133 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 1 Circuit/Insufficient Switching DTC P1134 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 1 Circuit Transition Time Ratio DTC P1153 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 2 Circuit/Insufficient Switching DTC P1154 - Heated Oxygen Sensor (Ho2S) No. 1 Bank 2 Circuit Transition Time Ratio DTC P1171 - Fuel System Lean During Acceleration DTC P1390 - "G" Sensor Circuit Intermittent Low Voltage DTC P1391 - "G" Sensor Circuit Performance DTC P1392 - "G" Sensor Circuit Low Voltage DTC P1393 - "G" Sensor Circuit High Voltage DTC P1394 - "G" Sensor Circuit Intermittent High Voltage DTC P1406 - EGR Valve Pintle Position Circuit DTC P1441 - EVAP System Flow During Non-Purge DTC P1508 - Idle Air Control (IAC) System Low Rpm DTC P1509 - Idle Control System High Rpm DTC P1618 - Serial Peripheral Interface (SPI) Pcm INTERPROCESSOR Communication Error DTC P1640 - Output Driver Module (ODM) "A" Fault Summary