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Engine Control System - 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 P0105 - Map Sensor Circuit Insufficient Activity DTC P0106 - Map System Performance DTC P0107 - Map Sensor Circuit Low Voltage DTC P0108 - Map Sensor Circuit High Voltage IAT Temperature-To-Resistance Values DTC P0111 - IAT Sensor Circuit Performance DTC P0112 - IAT Sensor Circuit Low Voltage DTC P0113 - IAT Sensor Circuit High Voltage DTC P0116 - ECT Sensor Circuit Performance ECT Temperature-To-Resistance Values DTC P0117 - ECT Sensor Circuit Low Voltage DTC P0118 - ECT Sensor Circuit High Voltage DTC P0120 - TP Sensor System Performance DTC P0121 - TP Sensor Circuit Insufficient Activity DTC P0122 - TP Sensor Circuit Voltage Low DTC P0123 - TP Sensor Circuit High Voltage DTC P0125 - ECT Excessive Time To Reach Closed Loop DTC P0131 - Ho2S Circuit Low Voltage Bank 1, Sensor 1 (Rear) DTC P0132 - Ho2S Circuit High Voltage Bank 1, Sensor 1 (Rear) DTC P0133 - Ho2S Slow Response Bank 1, Sensor 1 (Rear) DTC P0134 - Ho2S Insufficient Activity Bank 1, Sensor 1 Rear) DTC P0135 - Ho2S Heater Circuit Bank 1, Sensor 1 (Rear) DTC P0143 - Ho2S Circuit Voltage Low Bank 1, Sensor 3 Post Converter) DTC P0144 - Ho2S Circuit Voltage High Bank 1, Sensor 3 Post-Converter) DTC P0146 - Ho2S Circuit Insufficient Activity Bank 1, Sensor 3 (Post-Converter) DTC P0147 - Ho2S Heater Circuit Bank 1, Sensor 3 Post-Converter) DTC P0151 - Ho2S Circuit Voltage Low Bank 2, Sensor 1 (Front) DTC P0152 - Ho2S Circuit Voltage High Bank 2, Sensor 1 Front) DTC P0153 - Ho2S Slow Response Bank 2, Sensor 1 (Front) DTC P0154 - Ho2S Circuit Insufficient Activity Bank 2, Sensor 1 (Front) DTC P0155 - Ho2S Heater Circuit Bank 2, Sensor 1 (Front) 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 P0201 - Injector No. 1 Control Circuit DTC P0202 - Injector No. 2 Control Circuit DTC P0203 - Injector No. 3 Control Circuit DTC P0204 - Injector No. 4 Control Circuit DTC P0205 - Injector No. 5 Control Circuit DTC P0206 - Injector No. 6 Control Circuit DTC P0207 - Injector No. 7 Control Circuit DTC P0208 - Injector No. 8 Control Circuit DTC P0231 - Fuel Pump Feedback Circuit Low Voltage DTC P0232 - Fuel Pump Feedback Circuit High Voltage DTC P0300-P0308 - Engine Misfire Detected DTC P0322 - Ignition Control (Ic) Module 4X Reference Circuit No Frequency DTC P0325 - Knock Sensor Module Circuit DTC P0326 - Knock Sensor Circuit (Excessive Spark Retard) DTC P0327 - Knock Sensor Low Voltage DTC P0340 - Ignition Control (Ic) Module Cam Reference Circuit No Frequency DTC P0371 - Ignition Control (Ic) Module 24X Reference Circuit Too Many Pulses DTC P0372 - Ignition Control (Ic) Module 24X Reference Circuit Missing Pulses DTC P0401 - EGR System Malfunction DTC P0404 - EGR System Performance DTC P0405 - EGR Valve Sensor Circuit Voltage Out Of Range DTC P0420 - TWC System Low Efficiency DTC P0440 - EVAP System DTC P0442 - EVAP System (Small Leak Detected) DTC P0446 - EVAP System Canister Vent Blocked DTC P0452 - Tank Pressure Sensor Circuit Fault (Low Voltage) DTC P0453 - Tank Pressure Sensor Circuit Fault (High Voltage) DTC P0461 - Fuel Level Sensor Circuit Performance DTC P0462 - Fuel Level Sensor Circuit Voltage Low DTC P0463 - Fuel Level Sensor Circuit Voltage High DTC P0506 - IAC System Rpm Low DTC P0507 - IAC System Rpm High DTC P0532 - A/C Pressure Sensor Circuit Voltage Low SEVILLE) DTC P0533 - A/C Pressure Sensor Circuit Voltage High SEVILLE) DTC P0550 - Power Steering Pressure Switch Circuit Voltage Low DTC P0560 - System Voltage Low DTC P0563 - System Voltage High DTC P0601 - Pcm Memory DTC P0602 - Pcm Not Programmed DTC P0603 - Pcm Memory Reset DTC P0606 - Pcm Internal Communication Interrupted DTC P1106 - Map Sensor Circuit Intermittent High Voltage DTC P1107 - Map Sensor Circuit Intermittent Low Voltage DTC P1108 - BARO-To-Map Sensor Circuit Comparison Too High 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 - Ho2S Insufficient Switching Bank 1, Sensor 1 Rear) DTC P1134 - Ho2S Transition Time Ratio Bank 1, Sensor 1 Rear) DTC P1153 - Ho2S Insufficient Switching Bank 2, Sensor 1 Pre-Converter) DTC P1154 - Ho2S Transition Time Ratio Bank 2, Sensor 1 Front) DTC P1189 - Engine Oil Pressure Switch Circuit DTC P1258 - Engine Over-Temperature Protection DTC P1320 - Ignition Control (Ic) Module 4X Reference Circuit Intermittent No Pulse DTC P1323 - Ignition Control (Ic) Module 24X Reference Circuit Low Frequency DTC P1350 - Ignition Control (Ic) System DTC P1370 - Ignition Control (Ic) Module 4X Reference Circuit Too Many Pulses DTC P1371 - Ignition Control (Ic) Module 4X Reference Circuit Too Few Pulses DTC P1375 - Ignition Control (Ic) Module 24X Reference Circuit High Voltage DTC P1376 - Ignition Ground Circuit DTC P1377 - Ignition Control (Ic) Module Cam Pulse To 4X Reference Pulse Comparison DTC P1380 - Abs DTC Rough Road Data Unstable DTC P1381 - Misfire Detected-No EBTCM/Pcm Serial Data DTC P1404 - EGR Valve Pintle Stuck Open DTC P1441 - EVAP System Flow During Non-Purge DTC P1483 - Engine Cooling System Performance DTC P1508 - IAC System Low Rpm DTC P1509 - IAC System High Rpm DTC P1520 - Gear Indicator System DTC P1524 - TP Sensor Learned Closed Throttle Angle DTC P1527 - Transaxle Range/Pressure Switch Comparison DTC P1554 - Cruise Engaged With Circuit Voltage High DTC P1560 - Cruise Control System Transaxle Not In Drive DTC P1564 - Cruise Control System Vehicle Acceleration Too High DTC P1566 - Cruise Control System Engine Rpm Too High DTC P1570 - Cruise Control System Traction Control Active DTC P1571 - Traction Control System Pulse Width Modulated PWM) Circuit No Frequency DTC P1574 - EBTCM System Stoplight Switch Circuit Voltage High DTC P1575 - Extended Travel Brake Switch Circuit DTC P1579 - Park/Neutral-To-Drive/Reverse At High Throttle Angle DTC P1599 - Engine Stall Or Near Stall Detected DTC P1602 - Loss Of EBTCM Serial Data DTC P1604 - Loss Of Instrument Panel Cluster (IPC) Serial Data DTC P1605 - Loss Of HVAC Serial Data DTC P1610 - Loss Of PZM Serial Data DTC P1611 - Loss Of CVRTD Serial Data DTC P1617 - Engine Oil Level Switch Circuit DTC P1621 - Pcm Memory Performance 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 P1632 - Theft Deterrent System Fuel Disabled DTC P1633 - Ignition Supplement Power Circuit Voltage Low DTC P1634 - Ignition 1 Power Circuit Low Voltage DTC P1640 - Driver 1 - Input Voltage High DTC P1641 - Malfunction Indicator Light (Mil) Control Circuit DTC P1642 - Vehicle Speed Output Circuit DTC P1644 - Delivered Torque Output Circuit DTC P1645 - EVAP Purge Solenoid Output Circuit DTC P1646 - EVAP Vent Valve Output Circuit DTC P1650 - Driver 2 - Input Voltage High DTC P1652 - Lift/Dive Output Circuit DTC P1654 - Cruise Disable Output Circuit DTC P1660 - Cooling Fan Control Circuits