TEST ACTION APPLICABILITY
1 Using the DRB, erase the codes.
Turn ingition off.
Wait 10 seconds.
Turn ignition on.
Using the DRB, read the codes.
Does the DRB display the code that was previously erased?All
Ye s®Go To 2
No®Go To 4
2 Using the DRB, attempt to reprogram the ignition key to the SKIM Module.
Using the DRB, erase the codes.
Turn ignition off.
Wait 10 seconds.
Turn ignition on.
Using the DRB, read the codes.
Does the code appear?All
Ye s®Go To 3.
No®Test Complete.
3 Replace the ignition key with a new key.
Using the DRB, program the new ignition key to the SKIM Module.
Using the DRB, erase the codes.
Turn ignition off.
Wait 10 seconds.
Turn ignition on.
Using the DRB, read the codes.
Does the code appear?All
Ye s®Replace the Sentry Key Immobilizer Module.
Perform the Powertrain Verification Test VER-7A.
No®Test Complete.
4 Turn ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially borken wires.
Note: Visually inspect the related wire harness connectors. Look for broken,
bent, pushed out, or corroded terminals.
Note: Refer to any Technical Service Bulletins (TSB) that may apply.
Were any problems found?All
Ye s®Repair wiring harness/connectors as necessary.
Perform the Powertrain Verification Test VER-7A.
No®Test Complete.
314
TRANSPONDER (CYCLIC REDUNDANCY CHECK) CRC FAILURE Ð
Continued
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Symptom List:
VIN MISMATCH
When Monitored and Set Condition:
VIN MISMATCH
When Monitored: Monitored continuously during the engine RUN cycle.
Set Condition: This condition exists when the VIN received from the PCM does not match
the VIN stored in the SKIM'S EEPROM. Note: Failure maturity time may take up to 3
minutes.
POSSIBLE CAUSES
INTERMITTENT WIRING HARNESS PROBLEM
SKIM DEFECTIVE
PCM DEFECTIVE
TEST ACTION APPLICABILITY
1 Using the DRB, erase the codes.
Turn ingition off.
Wait 10 seconds.
Turn ignition on.
Using the DRB, read the codes.
Does the DRB display the code that was previously erased?All
Ye s®Go To 2
No®Go To 3
2Note: Ensure that a VIN has been programmed into the PCM. If a VIN is not
displayed, attempt to program the PCM with the vehicle VIN before
continuing.
Turn ignition on.
Using the DRB, select ªEngineº system from the main menu.
Display and record the Vehicle Identification Number (VIN).
Does the VIN recorded from the PCM match the VIN of the vehicle?All
Ye s®Replace the Sentry Key Immobilizer Module.
Perform the Powertrain Verification Test VER-7A.
No®Replace the Powertrain Control Module (PCM). Program the
correct VIN into the new PCM and retest.
Perform the Powertrain Verification Test VER-7A.
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SENTRY KEY IMMOBILIZER SYSTEM
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VERIFICATION TEST VER-5A APPLICABILITY
OBDII Road Test Verification
Use this test to verify that the OBDII symptom has been repaired and that the vehicle can be
returned to the customer. The proper way to verify that an OBDII DTC has been repaired is to
allow the PCM to run and pass the appropriate OBDII monitor(s).
Note: If the Powertrain Control Module has been changed and the correct VIN and
mileage have not been programmed, a DTC will be set in the ABS, Airbag and the
SKIM modules. In addition, if the vehicle is equipped with a Sentry Key Immobilizer
Module (SKIM), Secret Key data must be updated to enable starting. Refer to
GENERAL INFORMATION section for programming information for the PCM, SKIM
and the Transponder (ignition key).
1. Inspect the vehicle to ensure that all components related to the repair are connected
properly.
2. If any other DTC is present, refer to the symptom list for further diagnostic testing
procedures.
3. With the DRBIIIt, Clear DTC's.
4. In order for an OBDII monitor to run, certain pre-test conditions must be met. Refer to the
applicable OBDII monitor pre-test screen on the DRBIIItfor monitor enabling conditions.
5. Operate the vehicle within the enabling conditions and allow the applicable monitor to run.
While the monitor is running, the OBDII monitor screen on the DRBIIItwill display ªIN
PROGRESSº and the DRBIIItwill beep. After the monitor is complete, view the results. Refer
to the appropriate service information as necessary. A monitor may have to fail more than once
in order to set a DTC.
If the monitor fails, or the DTC returns, or any other symptom or DTC is present, refer to the
symptom list for further diagnostic testing procedures. Check for any Technical Service
Bulletins that may apply.
If there are no DTC's present and all components are functioning properly, the repair is
complete.ALL
Powertrain Verification Test VER-5A2 APPLICABILITY
Fuel System Lean/Rich or Misfire Verification
Use this test to verify that the Fuel System Lean, Fuel System Rich, or Misfire symptom has
been repaired and that the vehicle can be returned to the customer.
NOTE: If the Powertrain Control Module has been replaced and the correct VIN and
mileage have not been programmed, a DTC will be set in the ABS, Airbag and the
SKIM modules. In addition, if the vehicle is equipped with a Sentry Key Immobilizer
Module (SKIM), Secret KEY data must be updated to enable starting. Refer to
GENERAL INFORMATION section for programming information for the PCM, SKIM
and the Transponder (ignition key).
1. Inspect the vehicle to ensure that all components related to the repair are connected
properly.
2. If any other DTC is present, refer to the symptom list for further diagnostic testing
procedures.
3. With the DRBIIIt, monitor the Similar Conditions Window and attempt to duplicate the
conditions that the vehicle was operating at when the DTC was set. If the conditions can be
duplicated, the Good Trip counter will change to one or more.
4. If the DTC resets, or the OBDII monitor fails after running, or if any other symptom or DTC
is present, return to the symptom list and perform the appropriate diagnostic testing
procedures. Check for any Technical Service Bulletins that may apply.
5. If the monitor runs and the Good Trip Counter changes to one or more, the condition is no
longer present. If there are no DTCs and all components are functioning properly, the repair is
complete.ALL
320
VERIFICATION TESTS
Verification Tests ÐContinued
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