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OBDII Monitor Run Process: Notes

NGC Vehicles 

The following procedure has been established to assist Technicians in the field with enabling and running OBDII Monitors. The order listed in the following procedure is intended to allow the technician to effectively complete each monitor and to set the CARB Readiness Status in the least time possible.

NOTE:
  1. Once the monitor run process has begun, do not turn off the ignition. By turning the ignition key off, monitor enabling conditions will be lost. The NVLD Monitor runs after key off.
  2. By performing a Battery Disconnect, or Selecting Erase DTCs, the CARB Readiness and all additional OBDII information will be cleared.

Monitor Preliminary Checks:

  1. Plug a DRBIII® into the vehicle's DLC.
  2. Turn the ignition to the RUN POSITION. Watch for MIL lamp illumination during the bulb check. MIL lamp must have illuminated, if not, repair MIL lamp.
  3. On the DRB III® Select #1 DRB III Standalone.
  4. Select #1 1998-2006 Diagnostics
  5. Select #1 Engine
  6. Select #2 DTCs and Related Functions
  7. Select #1 Read DTCs

    *Verify that No Emissions Related DTCs are Present.

    *If an Emissions DTC is Present, the OBD II Monitors may not run and the CARB Readiness will not update.

    *The Emissions related DTC, will need to be repaired, then cleared. By clearing DTCs, the OBD Monitors will need to be run and completed to set the CARB Readiness Status.

  8. Return to Engine Select Function Menu and Select #9, OBD II Monitors.
  9. Select #3 CARB Readiness Status.

Do all the CARB Readiness Status Locations read

YES? 

*YES  , then all monitors have been completed and this vehicle is ready to be I/M or Emission Tested.

*NO  , then the following procedure needs to be followed to run/complete all available monitors.

NOTE:
  1. Only the monitors, which are not YES in the CARB Readiness Status, need to be completed.
  2. Specific criteria must be met for each monitor to run. Each monitor has a Pre-Test screen to assist in running the monitor.

For additional information, refer to the Chrysler Corporation Technical Training Workbook titled On Board Diagnostics: OBDII/EOBD  , part number 81-699-01050.

The most efficient order to run the monitors has been outlined below, including suggestions to aid the process.

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