Diagnostic Trouble Code Descriptions

1111 Control Unit
2113 No speed signal from the Hall sensor, or air flow sensor plate not moving freely
2121 Idle Switch
2123 Full Throttle Switch
2141 Knock Control Is At The Limit
2142 Knock Sensor Signal
2231 Adjustment Limit Of Idle Control Exceded
2232 Air Flow Sensor Potentiometer
2312 Coolant Temperature Sensor
2341 Oxygen Sensor At The Control Limit
2342 Oxygen Sensor Control
2343 Fuel Mixture Too Lean
2344 Fuel Mixture Too Rich
4431 Idle Control Valve
4444 No Faults Recognized
0000 End Of Fault Code Sequence