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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, 4WD, Part Time >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 5.9L >> Verification Tests >> Powertrain Verification Test VER-6
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Powertrain Verification Test VER-6

NOTE: For component location, see COMPONENT LOCATIONS . For connector identification, see CONNECTOR IDENTIFICATION . For circuit identification and wiring diagram, see WIRING DIAGRAMS .
  1. Inspect the vehicle to ensure that all engine components are properly installed and connected. Reassemble and reconnect components as necessary.
  2. If all DTCs have been diagnosed and repaired, go to next step. If any existing DTCs are not repaired, perform appropriate DTC test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . After all DTCs have been repaired, return to POWERTRAIN VERIFICATION TEST VER-6  and use DRBIII® scan tool to run Dealer Test Mode under System Tests.
  3. If PCM was not replaced, go to step  7. If PCM was replaced, go to next step.
  4. If the PCM was replaced, the correct Vehicle Identification Number (VIN) and mileage must be programmed or a DTC will set in the Controller Anti-Lock Brake (CAB) and Air Bag Control Modules (ACM). See POWERTRAIN CONTROL MODULE  under PROGRAMMING. In addition, if the vehicle is equipped with Sentry Key Immobilizer Module (SKIM), secret key data must be updated to enable start. See SENTRY KEY IMMOBILIZER MODULE  under PROGRAMMING.
  5. For ABS and air bag systems, enter correct VIN and mileage in PCM. Erase DTCs in CAB and ACM.
  6. For SKIM theft alarm, connect DRBIII® scan tool to DLC. Go to Theft Alarm, SKIM, Misc, and place SKIM in Secured Access Mode by using the appropriate Personal Identification Number (PIN) code for this vehicle. This number may be obtained from the vehicle's owner or manufacturer. Select Update The Secret Key Data. Data will be transferred from SKIM to PCM.
  7. The Leak Detection Pump (LDP) monitor test mode has been added to the DRBIII® scan tool to verify repairs to the LDP system. A DRBIII® scan tool 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 operating mode of PCM. For this reason, it is critical that test not be interrupted. If PCM is left in this mode as result of interrupted test, the MIL will illuminate for 8-10 miles of driving with no DTCs stored.
  10. Erasing DTCs will not change this condition.
  11. If a vehicle is found to be stuck in LDP monitor test mode, the LDP Dealer Test should be rerun in its entirety so that the software program in the DRBIII® 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 is given.
  13. System test failure may have been 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 DRBIII® scan tool to the Data Link Connector (DLC).
    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).
  15. With DRBIII® scan tool in System Tests, perform the LDP monitor test and follow the instructions on the screen. Continue when preceding causes have been examined. With the DRBIII® scan tool, read DTCs. Are any DTCs or symptoms remaining? If yes, check for any related Technical Service Bulletin (TSB) and/or perform appropriate DTC test and finish diagnosing remaining DTCs as necessary. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . If no, repair is complete.
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