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Home >> Jeep >> 2004 >> Liberty Limited, 4WD, Automatic >> Repair and Diagnosis >> Electrical >> Charging Systems >> Charging System - Generators & Regulators >> Verification Tests >> Powertrain Verification Test VER-5

Powertrain Verification Test VER-5

NOTE: After completing the Powertrain Verification Test the Transmission Verification Test must be performed. See 42RLE (NGC) TRANSMISSION VERIFICATION TEST - VER 1  .
NOTE: If the PCM has been replaced and the correct VIN and mileage have not been programmed, a DTC will set in the ABS Module, Airbag Module and the SKIM.
NOTE: If the vehicle is equipped with a Sentry Key Immobilizer System, Secret Key data must be updated.
NOTE: When replacing an O2 Sensor, the PCM RAM memory must be cleared, either by disconnecting the PCM C-1 connector or momentarily disconnecting the battery negative terminal.
  1. The NGC learns the characteristics of each O2 heater element an these old values should be cleared when installing a new O2 sensor. The customer may experience driveability issues if this is not performed.
  2. Inspect the vehicle to ensure that all engine components are properly installed and connected. Reassemble and reconnect components as necessary.
  3. Connect the DRBIII(R) to the data link connector.
  4. Ensure the fuel tank has at least a quarter tank of fuel. Turn off all accessories.
  5. If the catalyst was replaced, with the DRBIII(R) go to the MISCELLANEOUS menu option "Catalyst Replaced" and press enter.
  6. If a comprehensive Component DTC was repaired, perform steps  58 . If a Major OBDII Monitor DTC was repaired skip those steps and continue verification.
  7. After the ignition has been off for at least 10 seconds, restart the vehicle and run 2 minutes.
  8. With the DRBIII(R), monitor the appropriate pre-test enabling conditions until all conditions have been met. Once the conditions have been met, switch screen to the appropriate OBDII monitor, (audible beeps when the monitor is running).
  9. If the repaired OBDII trouble code has reset or was seen in the monitor while on the road test, the repair is not complete. Check for any related technical service bulletins or flash updates and return to POSSIBLE CAUSES in appropriate DTC.
  10. If the conditions, cannot be duplicated, erase all DTC's with the DRBIII(R).
  11. If another DTC has set, return to the POSSIBLE CAUSES in appropriate DTC, and follow the path specified for that DTC.
  12. If the OBDII monitor runs successfully and has the Good Trip Counter changed to one or more, repair is complete. If not, check for any related TSB's and/or refer to the appropriate POSSIBLE CAUSES in appropriate DTC.