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Powertrain Verification Test VER-2 (NGC)

  1. Inspect the vehicle to ensure that all engine components are properly installed and connected. Reassemble and reconnect components as necessary.
  2. If this verification procedure is being performed after a NO TROUBLE CODE repair, perform steps  3 and  4 .
  3. Check to see if the initial symptom still exists. If there are no DTC's or the symptom no longer exists, the repair was successful and testing is complete.
  4. If the initial or another symptom exists, the repair is not complete. Check all technical service bulletins or flash updates and return to symptoms if necessary.
  5. If the verification procedure is being performed after a DTC repair, perform steps  6- 13 .
  6. Connect the DRBIII® to the data link connector. With the DRBIII®, erase DTC's and reset all values.
  7. If the PCM was not replaced, skip steps  8- 10 and continue with the verification.
  8. If the PCM was replaced, the correct VIN and mileage must be programmed or a DTC will set in the ABS and Air Bag modules. In addition, if the vehicle is equipped with Sentry Key Immobilizer Module (SKIM), Secret Key data must be updated to enable start.

  9. ABS & Air Bag Systems

    Enter correct VIN and mileage in PCM. Erase codes in ABS and Air Bag modules.

  10. SKIM Theft Alarm

    Connect DRBIII® to data link connector. Go to Theft Alarm, SKIM, and Misc. 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.
  11. If equipped with a transfer case position switch, perform step  12, otherwise, continue with step  13.
  12. With the ignition switch on, place the transfer case shift lever in each gear position, stopping for 15 seconds in each position.
  13. Road test the vehicle. If the test is for an A/C DTC, ensure it is operating during the following test.
  14. Drive the vehicle for at least 5 minutes at 40 MPH. Ensure the transmission shifts properly through all gears. At some point stop the vehicle and turn off the engine for at least 10 seconds.
  15. With the DRBIII®, read DTC's.
  16. If any DTC's or symptoms remain, check for any related TSB's and/or refer to the SCAN TOOL DTC MESSAGES  table. If no DTC's or symptoms remain, test is complete.
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