Displaying & Reading Trouble Codes

ACCESSING FAULT CODES

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 engine controller.

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 Scan Tool, 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 TRANSMISSION option. The following menu will appear:
1) EATX
2) AW-4


6. Select the AW-4 option. The following menu will appear:

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

7. 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.