2 and 3 Digit Codes

NOTES:

The following information is provided for those with no access to a scan tool. In order to properly diagnose and repair this vehicle, a scan tool should be used.

A set trouble code does not identify the failed component. A set trouble code indicates that the Powertrain Control Module (PCM) has detected a condition outside of the limits set for that circuit.

For corresponding test procedures, SEE DIAGNOSTIC CHARTS/TEST TC-1A. TC-1A CODE TO TC TEST CHART (Checking For Trouble Codes)

TROUBLE CODE NO. DRB II DISPLAY DESCRIPTION OF FAULT CONDITION

11* No crank reference signal No distributor reference signal detected during engine cranking.

12* Battery Disconnect Direct battery input to PCM was disconnected within 50 Key-on cycles.

13** Slow change in MAP signal MAP output change is slower and/or smaller than expected at idle.
or
No MAP pneumatic change No difference recognized between engine MAP reading and barometric pressure reading at start-up.

14** MAP voltage too low MAP sensor input below minimum acceptable voltage.
or
MAP voltage too high MAP sensor input above maximum acceptable voltage.

15** No vehicle speed signal No vehicle distance (speed) sensor signal detected during road load conditions.

17* Engine is cold too long Engine coolant temperature remains below normal operating temperatures during vehicle travel (thermostat).

21** O2S stays centered Neither rich nor lean condition is detected from the oxygen sensor input.
or
O2S shorted high Oxygen sensor input voltage maintained above normal operating range.

22** ECT sensor voltage low Engine Coolant Temperature sensor input below the minimum acceptable
or voltage.
Coolant sensor voltage high Sensor input above the maximum acceptable voltage.

24** TPS voltage low Sensor input below the minimum acceptable
or voltage.
TPS voltage high Sensor input above the maximum acceptable voltage.

25** IAC motor circuits A shorted condition detected in one or more of the Idle Air Control (IAC) motor circuits.

27** Injector control circuit Injector output driver does not respond properly to the control signal.

31** Purge solenoid circuit An open or shorted condition detected in the duty cycle EVAP purge solenoid circuit.

32** EGR solenoid circuit An open or shorted condition detected in the EGR transducer solenoid
or circuit.
EGR system failure Required change in fuel/air ratio not detected during diagnostic test.

33* A/C clutch relay circuit An open or shorted condition detected in the A/C clutch relay circuit.

34* S/C solenoid circuits An open or shorted condition detected in the speed control vacuum or vent solenoid circuit.

35* Radiator fan relay An open or shorted condition detected in the high or low speed radiator fan relay circuit.

37* Torque converter clutch An open or shorted
solenoid circuit condition detected in the torque converter clutch circuit. (Auto transmission only.)

41** Generator field circuit An open or shorted condition detected in the generator field control circuit.

42* ASD relay control circuit An open or shorted condition detected in the auto shut down relay circuit.
or

No ASD Relay PCM did not detect ASD
Output voltage at PCM sense signal, after grounding ASD relay.

46** Charging voltage high Battery voltage sense input above target charging voltage during engine operation.

47** Charging voltage low Battery voltage sense input below target charging voltage during engine operation. Also, no significant change detected in battery voltage during active test of generator output.

51** Lean O2 signal Oxygen sensor signal indicates lean fuel/air ratio condition during engine operation.

52** Rich O2 condition Oxygen sensor signal indicates rich fuel/air ratio condition
or during engine operation.
Excessive leaning Adaptive fuel value leaned excessively due to a sustained rich condition.

53* Internal controller Internal Powertrain Control Module (PCM) fault condition detected.

54* No cam sync signal at PCM No fuel sync signal detected during engine rotation.

55* None Completion of Diagnostic Trouble Code display on the Malfunction Indicator Lamp (MIL), (previously called the Check Engine Lamp).

62* SRI miles Unsuccessful attempt to update SRI mileage.

63* EEPROM write denied Unsuccessful attempt to write to an EEPROM location by the PCM.

N/A Fault code error An unrecognized fault ID received by scan tool.

* Malfunction Indicator Lamp (MIL), (previously called the Check Engine Lamp), will not be illuminated at all times when this Diagnostic Trouble Code (DTC) is set. Cycle ignition key or use scan tool to access trouble code. SEE HOW TO EXTRACT DIAGNOSTIC TROUBLE CODES.

** Malfunction Indicator Lamp (MIL), (previously called the Check Engine Lamp), will illuminate during engine operation if this Diagnostic Trouble Code is set, (recorded in memory).