| Code |
Circuit
or Sensor |
| 35 |
Idle Air Control Circuit
(IAC) |
| 36 |
Mass Air Flow Burn Off
Circuit |
| 41 |
Cylinder Select Error
Circuit (1985-1991) |
| 42 |
Electronic Spark Timing
Circuit (EST) |
| 43 |
Knock Sensor Circuit |
| 44 |
Lean Exhaust Present |
| 45 |
Rich Exhaust Present |
| 46 |
VATS Anti Theft Circuit
Fault |
| 51 |
PROM / EEPROM Error |
| 52 |
Oil Temperature Circuit
(Low Temperature) |
| 53 |
System Charging Voltage
High or Low |
| 54 |
Fuel Pump Circuit (Low
Voltage) |
| 55 |
Engine Running Lean |
| 62 |
Oil Temperature Circuit
(High Temperature) |
| 63 |
Oxygen Sensor Circuit
(Open) |
| 64 |
Oxygen Sensor Circuit
(Lean Exhaust) |
| 65 |
Oxygen Sensor Circuit
(Rich Exhaust) |
| 66 |
Air Conditioner Pressure
Limit Exceeded |
| 67 |
Air Conditioner Pressure
Limit Exceeded |
| 68 |
Air Conditioner Relay
Fault |
| 69 |
Air Conditioner Clutch
Fault |
| 72 |
Gear Selector Switch Fault
(Start Lockout) |
