Chrysler Trouble Codes OBD1

This article contains OBD1 trouble code definitions and retrieval method for Chrysler.

To gather trouble codes turn the ignition key on off in rapid succession five times with the cycle ending in the "ON" position. Once this activation has started the check engine light will start to flash. The first set of check engine light flashes will be the first digit of the two digit code. After the check engine light pauses for a short time it will start to blink again starting the second digit identification and completing the code's second number. If additional trouble codes are stored in the computer the first digit will begin to flash, and then the second digit. For example: check engine light flashes four times, pauses and then flashes three more times, the code is 43. The check engine light will flash five and then five (55) meaning the code gathering is over. The system will flash 12 if there are no codes stored in the computer's memory. To clear codes disconnect the negative battery terminal for 30 seconds and reconnect.

Domestic Car Code Definitions

11 - Camshaft signal or ignition signal, no reference signal during cranking.

12 - Memory to controller has been cleared within 50-100 engine starts.

13 - Map sensor not detecting any change during test.

14 - Map voltage too high or too low.

15 - Vehicle speed sensor, no signal detected.

16 - Knock sensor circuit. open or short detected.

17 - Low engine temperature, possible thermostat fault.

21 - Oxygen sensor signal, neither rich or lean detected.

22 - Coolant sensor voltage low.

23 - Air charge voltage high/low detected.

24 - Throttle position sensor voltage high/low.

25 - Automatic idle speed motor driver circuit, short or open detected.

26 - Injectors 1,2,3 peak current not reached.

27 - Injector control circuit does not respond to control signal.

31 - Purge solenoid circuit, open or short detected.

32 - EGR solenoid circuit, open or short detected.

33 - A/C clutch relay circuit, open or short detected.

34 - Speed control servo solenoid, open or short detected.

35 - Radiator fan control relay circuit, open or short detected.

36 - Waste-gate solenoid, open or short detected.

37 - Part throttle unlock(PTU) circuit, open or short detected.

41 - Charging system circuit not responding to control signal.

42 - Fuel pump or auto shutdown (ASD) relay voltage sensed at controller.

43 - Ignition control circuit not responding.

44 - Battery temperature voltage circuit problem.

45 - Turbo boost limit exceeded-map sensor detects over-boost.

46 - Battery voltage too high.

47 - Battery voltage too low.

51 - Air/fuel at limit.

52 - Logic module fault.

53 - Internal controller failure.

54 - Camshaft reference circuit not detected.

55 - End of message.

61 - BARO read solenoid, open or short detected.

62 - EMR mileage not stored.

63 - Eprom write denied.

64 - Flex fuel sensor signal out of range.

65 - Manifold tuning valve, open or short detected.

66 - No ccd messages.

76 - Ballast bypass relay, open or short detected.

77 - Speed control relay, open or short detected.


Import Car Code Definition

1 - Oxygen sensor.

2 - Crank engine sensor.

3 - Air flow sensor.

4 - Barometric pressure sensor.

5 - Throttle position sensor.

6 - Motor position sensor.

7 - Engine coolant temperature sensor.

8 - No.1 cylinder tdc sensor.

12 - Air flow sensor.

13 - Air temperature sensor.

15 - SC motor position sensor.

21 - Engine coolant temperature sensor.

22 - Crank angle sensor.

24 - Vehicle speed sensor.

25 - Barometric pressure sensor.

31 - Knock sensor.

32 - Manifold pressure sensor.

36 - Ignition timing adjustment signal.

39 - Oxygen sensor.

41 - Injector circuit

42 - Fuel pump.

43 - EGR failure.

44 - Ignition coil circuit failure.

52 - Ignition coil circuit failure.

53 - Ignition coil circuit failure.

55 - IAC valve position sensor.

59 - Heated oxygen sensor.

61 - Transaxle control unit cable.

62 - Warm up control valve position sensor


Helpful Information

Chrysler, Dodge and Plymouth automobiles have a diagnostic trouble code retrieval method, unlike Gm and Ford which have a data port connector to gather codes from.



Written by
Co-Founder and CEO of
35 years in the automotive repair field, ASE Master Technician, Advanced Electrical and Mechanical Theory.


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Article first published (Updated 2015-01-05)