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Engine Controls - Tests W/Codes Expand All (for easy ctrl-f) Collapse All Introduction Self-Diagnostic System ECM/Pcm Code Charts Notes Code 11, Malfunction Indicator Light Code 13, Open Oxygen Sensor Circuit Code 14, Coolant Temperature Sensor Signal Voltage Low Code 15, Coolant Temperature Sensor Signal Voltage High Code 16, OPTI-Spark Ignition System Low Resolution Pulse Code 18, Injector Circuit Code 21, Throttle Position Sensor Signal Voltage High Code 22, Throttle Position Sensor Signal Voltage Low Code 23, Mat Sensor Signal Voltage High Code 24, Vehicle Speed Sensor Code 25, Mat Sensor Signal Voltage Low Code 26, Canister Purge Solenoid Code 27, EGR Solenoid Valve Code 28, Transmission Range Pressure Switch Code 29, Secondary Air Injection Code 33, Code 34, Map Sensor Signal Voltage Low Code 35, IAC Idle Speed Error Code 36, OPTI-Spark High Resolution Pulse Code 37, TCC Brake Switch Error Code 38, TCC Brake Switch Error Code 41, OPTI-Spark Ignition System Open Or Shorted Est CKT Code 42, Ic Circuit Grounded Code 43, Knock Sensor Circuit Code 44, Lean Exhaust Indication Code 45, Rich Exhaust Indication Code 47, Knock Sensor Module Code 48, Mass Airflow Sensor Code 50, System Voltage Low Code 51, Faulty Prom/Mem-Cal Code 52, Faulty Cal-PAK Code 52, Low Engine Oil Temperature Code 55, Pcm Error Code 55, Fuel Lean Monitor Code 58, Transmission Temperature Sensor High Temperature Code 59, Transmission Temperature Sensor Low Temperature Code 61, A/C System Performance Code 62, High Engine Oil Temperature Code 63, Right Oxygen Sensor Open Code 64, Right Oxygen (O(2)) Sensor Lean Code 65, Right Oxygen (O(2)) Sensor Rich Code 66, A/C Pressure Sensor Code 67, A/C Pressure Sensor Code 68, A/C Relay Circuit Shorted Code 69, A/C Compressor Relay Code 70, A/C Compressor Relay Driver Code 72, Vehicle Speed Sensor Loss Code 73, Pressure Control Solenoid Code 74, Traction Control Voltage Low Code 75, Transmission Voltage Low Code 77, Primary Cooling Fan Driver Code 78, Secondary Cooling Fan Driver Code 79, Transmission Fluid OVERTEMP Code 80, Transmission Component Slipping Code 81, 2-3 Shift Solenoid Code 82, 1-2 Shift Solenoid Code 84, 3-2 Control Solenoid - A/T Code 84, 2ND To 3RD Gear BLOCKOUT Relay - M/T Code 85, TCC Stuck On Code 90, TCC Solenoid Circuit Code 91, 1-4 Upshift Light Code 97, VSS Output Circuit Code P0116, ECT Sensor Circuit Range/Performance Problem Code P0117, Coolant Temp Sensor Low Temp Indicated Code P0118, Coolant Temp Sensor High Temp Indicated Code P0131, Bank 1 O2 Sensor No. 1 Low Voltage Signal (Lean) Code P0132, Bank 1 O2 Sensor No. 1 High Signal Voltage (Rich) Code P0133, Bank 1 Ho2S No. 1 Circuit Slow Response Code P0134, Bank 1 Oxygen Sensor No. 1 No Activity Detected Code P0135, Bank 1 O2 Sensor No. 1 Heater Circuit Malfunction Code P0151, Bank 2 O2 Sensor No. 1 Low Signal Voltage (Lean) Code P0152, Bank 2 O2 Sensor No. 1 High Signal Voltage (Rich) Code P0153, Bank 2 Oxygen Sensor No. 1 Slow Response Code P0154, Bank 2 Oxygen Sensor No. 1 No Activity Detected Code P0155, Bank 2 O2 Sensor No. 1 Heater Circuit Malfunction Code P0158, Bank 2 O2 Sensor No. 2 High Signal Voltage (Rich) Code P0160, Bank 2 Oxygen Sensor No. 2 No Activity Detected Code P0161, Bank 2 O2 Sensor No. 2 Heater Circuit Malfunction Code P0171, Bank 1 Fuel Trim System Too Lean CODE P0172, BANK 1 FUEL TRIM SYSTEM TOO RICH (1 Of 2) Code P0172, Bank 1 Fuel Trim System Too Rich (2 Of 2) Code P0174, Bank 2 Fuel Trim System Too Lean Code P0175, Bank 2 Fuel Trim System Too Rich (1 Of 2) Code P0175, Bank 2 Fuel Trim System Too Rich (2 Of 2) Code P0420, Bank 2 Catalyst SYS Low O2 Storage Cap Indicated Code P1114, Engine Coolant Temp Intermittent Low Input Voltage Code P1115, Engine Coolant Temp Intermittent High Input Voltage Code P1133, Bank 1 Oxygen Sensor No. 1 Not Enough Switches Code P1153, Bank 2 Oxygen Sensor No. 1 Not Enough Switches Code P1158, Bank 2 Oxygen Sensor No. 2 Shifted Rich Summary Wiring Diagrams