Operation CHARM: Car repair manuals for everyone.
Hosted by mcallihan.com

Reading Diagnostic Trouble Codes

ACCESSING/DELETING FAULT CODES

NOTE: Chrysler does not provide a procedure to retrieve diagnostic codes without a scan tool.

CAUTION: Be sure to apply parking brake and/or block wheels before performing idle check or adjustment, or any engine running tests.


1. Connect the scan tool to the diagnostic connector located in the engine compartment near the PCM.
2. If possible, START the engine, turn ON the air conditioning, and shift the transmission selector through all of the gears, returning to PARK (A/T) or NEUTRAL (M/T). Turn OFF the air conditioning and shut OFF the engine.
3. Turn ON the ignition switch and observe the MALFUNCTION INDICATOR LAMP. It should light for approx. 2 seconds then go out.
4. Using the DRB II, go to the SELECT SYSTEM menu that looks like this:

1) ENGINE
2) TRANSMISSION
3) BODY
4) SUSPENSION
5) ABS
6) PASSIVE REST
7) THEFT ALARM

5. Select the ENGINE option. The following menu will appear:

1) WITH A/C
2) WITHOUT A/C



6. Select the appropriate option. The following menu will appear:

1) FUEL/IGNITION
2) CHARGING
3) SPEED CONTROL


7. Select the FUEL/IGNITION option. The following menu will appear:

1) SYSTEM TESTS
2) READ FAULTS
3) STATE DISPLAY
4) ACTUATOR TEST
5) ADJUSTMENTS

8. To extract fault codes, select the READ FAULTS option and all of the faults that are stored in the computers memory will be displayed. Write all of the fault codes down. SEE FAULT MESSAGE TO DIAGNOSTIC CHART CONVERSION for a listing of fault codes and related diagnostic routines.