With Generic Scan Tool
ACCESSING/DELETING FAULT CODES, RESETTING EMR LIGHT/RESETTING EMR MEMORY
CAUTION: Be sure to apply parking brake and/or block wheels before performing idle check or adjustment, or any engine running tests.
Diagnostic Connector Location:
1. Connect the scan tool to the diagnostic connector located in the engine compartment near the Single Board Engine Controller (SBEC).
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 CHECK ENGINE 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. Refer to FAULT MESSAGE TO DIAGNOSTIC CHART CONVERSION for a listing of fault codes and related diagnostic routines.
9. To delete existing fault codes or reset the EMR light, select the ADJUSTMENTS option. The following menu will appear:
1) ERASE FAULTS
2) RESET MEMORY
3) RESET EMR LIGHT
4) EMR MEMORY CHECK
10. Select ERASE FAULTS option to clear fault codes, or select RESET EMR LIGHT option to reset the EMR light in the instrument panel.
11. If the engine controller has been changed, the EMR memory has to be updated with the current mileage of the vehicle. This can be done by selecting RESET MEMORY in the current menu.