V6
Code
12 - System Pass (OK)
Code 13 - Oxygen Sensor (O2)
Code 14 - Coolant temperature Sensor - Voltage Too Low
Code 15 - Coolant temperature Sensor - Voltage Too High
Code 16 - Coolant Temperature Sensor - Voltage Unstable
Code 17 - PCM Coolant Temperature Circuit
Code 19 - Throttle Position Sensor
Code 21 - Throttle Position Sensor (TPS) - Voltage Too High
Code 22 - Throttle Position Sensor (TPS) - Voltage Too Low
Code 23 - Mass Air Temp Sensor (MAT) - Voltage Too High
Code 24 - Vehicle Speed Sensor (VSS)
Code 25 - Mass Air Temp Sensor (MAT) Sensor or Circuit - Voltage Too Low
Code 26 - Mass Air Temp Sensor (MAT) Sensor or Circuit - Voltage Unstable
Code 28 - Transmission Problem
Code 31 - Theft Deterrent System - Missing Signal
Code 32 - Manifold Airflow (MAF) Sensor or Circuit
Code 33 - Manifold Absolute Pressure Sensor (MAP) - Voltage Too High
Code 34 - Manifold Absolute Pressure Sensor (MAP) - Voltage Too Low
Code 35 - Idle Speed Error
Code 36 - Vacuum Leak
Code 41 - Crank Angle Sensor
Code 42 - Electronic Spark Timing Circuit (EST)
Code 43 - Knock Sensor Circuit
Code 44 - Oxygen Sensor Lean (O2)
Code 45 - Oxygen Sensor Rich (O2)
Code 51 - Memcal Unit - Check for bent pins
Code 52 - CALPAK Unit - Check for bent pins
Code 53 - System Over-Voltage - Alternator produced > 17.1 Volts for more than 2 seconds
Code 55 - ECM - Check ECM Grounds or excessive input voltage
Thanks to James Collins for Codes 51 - 55