Powertrain Verification Test - Ver 6
POWERTRAIN VERIFICATION TEST VER-6Applicability - All
1. Inspect the vehicle to ensure that all engine components are properly installed and connected. Reassemble and reconnect components as necessary.
2. If the PCM was replaced, perform steps 3 through 5 then continue with the verification. Otherwise, skip those steps and continue.
3. If PCM has been changed and correct VIN and mileage have not been programmed, a DTC will be set in ABS and Airbag modules. In addition, if vehicle is equipped with a Sentry Key Immobilizer Module (SKIM), Secret Key data must be updated to enable start.
4. For ABS and Airbag Systems: Enter correct VIN and Mileage in PCM. Erase codes in ABS and Airbag modules.
5. For SKIM theft alarm: Connect DRB to data link connector. Go to Theft Alarm, SKIM, Misc. and place SKIM in secured access mode, by using the appropriate PIN code for this vehicle. Select Update the Secret Key data. Data will be transferred from SKIM to PCM.
6. If any existing diagnostic trouble codes are not repaired, go to symptom list and follow path specified. After all diagnostic trouble codes have been repaired, return to TEST VER-6 and run LDP Dealer Test Mode under Systems Test in DRB III.
7. The LDP Monitor Test Mode has been added to the DRB III to verify repairs to the LDP System. A DRB software program was written which causes the PCM to run the LDP Monitor as part of this test. Test failures will be indicated through a stored DTC.
8. LDP Monitor Test Mode is a useful way to run a total system performance test. Use this test to verify any type of LDP system repair.
9. Software program makes temporary changes to the operating mode of the PCM. For this reason, it is critical that the test not be interrupted. PCM's left in this mode as a result of an interrupted test will illuminate the MIL for 8-10 miles of driving with no DTC's stored.
10. Erasing DTC's will not change this condition.
11. If a vehicle is found to be stuck in the mode described above, the LDP Dealer Test should be re-run in its entirety so that the software program in the DRB III can restore the PCM operating mode.
12. Note similarity to LDP Monitor screen found under OBD II Monitors. Failure modes are fewer in this System Test than OBD II LDP Monitor. System Test only stores Small Leak DTC to indicate problem with system. No other type of failure mode indication given.
13. System Test failure may have been, for example, due to a large leak, but the PCM will set the Small Leak DTC to indicate failures that occurred as part of the system test.
14. Connect the DRB to the Data Link Connector. Engine running, turn off all accessories.
15. Note: While test is being performed, PCM must see RPM, minimum MAP, no vehicle speed and minimum Throttle Position Sensor (at idle, in PARK.) With DRB III in System Tests, perform the LDP Monitor Test and follow the instructions on the screen.
16. If the LDP Monitor Test failed and a Small Leak DTC has set, the repair is not complete. Check for any related Technical Service Bulletins and return to Symptom List.
17. If any other trouble code has set, return to Symptom List and follow the path specified for that trouble code. If the LDP Monitor Test passed, the repair was successful and testing is now complete.