Powertrain Verification Test - Ver 2A

VERIFICATION TEST VER-2A

Applicability - Diesel

1. Check if any of the following conditions exist.

2. The ECM has been disconnected or replaced.

3. The Battery power has been disconnected.

4. The APPS has been disconnected or replaced.

5. If any of the conditions exist, perform the following steps, otherwise, go to step 8.

6. APPS Programming Procedure: Reassemble all components. Turn the ignition key to the ON or RUN position. Without starting the engine, slowly press the throttle pedal to the floor and then slowly release.

7. This step must be done (only once) to ensure the Accelerator Pedal Position Sensor calibration has been programmed in the ECM.

8. Caution: Do not attempt to adjust screws or disassemble the APPS sensor. These settings are set at the factory and are not intended to be changed.

9. If the PCM has been replaced, do the following: (Otherwise go to step 12).

10. Note: If the Powertrain Control Module has been changed and the correct VIN and mileage have not been programmed, a DTC will be set in the ABS and Airbag modules.

11. For ABS and Airbag Systems: Enter correct VIN and Mileage in PCM. Erase ABS and Airbag modules codes.

12. If the PCM has not been replaced, do the following:

13. If this verification procedure is being performed after a NO TROUBLE CODE repair, do the following:

14. Check to see if the initial symptom still exists. If the initial or another symptom exists, the repair is not complete. Check all pertinent Technical Service Bulletins and return to the Symptom list if necessary.

15. If this verification procedure is being performed after a TROUBLE CODE repair, do the following:

16. Connect the DRB to the Data Link Connector and erase trouble codes.

17. With the DRB, reset all memory values.

18. If this test is for an A/C trouble code, ensure it is operating during the following road test.

19. Drive the vehicle for at least five minutes. For some of the drive, go at least 40 mph. At some point stop the vehicle and turn the engine OFF for 10 seconds or more, then restart and continue. Ensure the transmission shifts through all gears.

20. Upon completion of the road test, turn the engine OFF and read trouble codes with the DRB.

If a trouble code has set, return to the Symptom list and follow the path specified. If there are no trouble codes, the repair was successful and is now complete.