Symptom List:
TRANSPONDER (CYCLIC REDUNDANCY CHECK) CRC FAILURE
TRANSPONDER COMMUNICATION FAILURE
TRANSPONDER ID MISMATCH
TRANSPONDER RESPONSE MISMATCH
Test Note: All symptoms listed above are diagnosed using the same tests.
The title for the tests will be TRANSPONDER (CYCLIC RE-
DUNDANCY CHECK) CRC FAILURE.
When Monitored and Set Condition:
TRANSPONDER (CYCLIC REDUNDANCY CHECK) CRS FAILURE
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when 5 consecutive transponder signal transmis-
sions are sent to the SKIM with the correct message format but with invalid data.
TRANSPONDER COMMINICATION FAILURE
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when an invalid message format is received from the
transponder after 5 consecutive transponder read attempts.
TRANSPONDER ID MISMATCH
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when the transponder ID read by the SKIM does not
match any of those transponder ID's stored in the SKIM's memory.
TRANSPONDER RESPONSE MISMATCH
When Monitored: At ignition ON and during Key Programming Mode.
Set Condition: This condition exists when the transponder's secret algorithm result fails
to match the SKIM's result.
POSSIBLE CAUSES
INTERMITTENT WIRING HARNESS PROBLEM
SKIM/KEY DEFECTIVE
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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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TEST ACTION APPLICABILITY
3 Turn ignition off.
Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken 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.
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SENTRY KEY IMMOBILIZER SYSTEM
VIN MISMATCH ÐContinued
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Verification Tests
VERIFICATION TEST VER-1A APPLICABILITY
No Start Verification
Use this test to verify that a No Start condition 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. Inspect the engine oil for fuel contamination. Replace the oil and filter as necessary
3. Attempt to start the engine.
4. If the No Start condition is still present, refer to the symptom list and perform diagnostic
testing as necessary. Refer to any Technical Service Bulletins that may apply.
5. Run the engine for one warm-up cycle to verify proper operation. With the DRBIIIt, confirm
that no DTC's are present and that all components are functioning properly.
6. If DTC's are present, refer to the symptom list and perform diagnostic testing as necessary.ALL
VERIFICATION TEST VER-2A APPLICABILITY
Non-OBDII Verification
Use this test to verify that a non-OBDII symptom has been repaired and that the vehicle can
be returned to the customer. A non-OBDII symptom is a comprehensive component related
symptom that is not the result of a failed OBDII major monitor.
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. With the DRBIIIt, Clear DTC's and Reset Memory (all engine values).
3. Run the engine for one warm-up cycle to verify proper operation.
4. Road test the vehicle. Use all accessories that may be related to this repair.
With the DRBIIIt, confirm that no DTC's are present and that all components are functioning
properly.
6. If this test is being performed after a No Trouble Code test, verify that the symptom is no
longer present. If the symptom is still present, 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.
7. If there are no DTC's present and all components are functioning properly, repair is
complete.ALL
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VERIFICATION TESTS
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VERIFICATION TEST VER-3A APPLICABILITY
Charging System Verification
Use this test to verify that the Charging System 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. With the DRBIIIt, Clear DTC's.
3. Perform generator output test. Refer to the appropriate service information as necessary.
4. Start the engine and set engine speed to 2000 RPM for at least thirty seconds.
5. Turn the ignition OFF.
6. Turn the ignition ON, with the engine not running.
7. With the DRBIIIt, Read the DTC's. If 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.
8. If there are no DTC's present and all components are functioning properly, the repair is
complete.All
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VERIFICATION TESTS
Verification Tests ÐContinued
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VERIFICATION TEST VER-4A APPLICABILITY
Speed Control Verification
Use this test to verify that the Speed Control 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. With the DRBIIIt, Clear DTC's.
3. Road test the vehicle at a speed above 35 MPH.
4. Turn the Speed Control ON.
5. Press and release the Set switch. Verify that the speed control engages.
6. With the Speed Control engaged:
A. Press and hold the ACCEL switch. Verify that the speed increases.
B. Press and hold the SET (or DECEL) switch. Verify that the vehicle speed decreases.
C. Press and release the CANCEL switch. Verify that the Speed Control disengages.
D. Allow the vehicle speed to drop below 25 MPH. Press and release the RESUME switch.
Verify that the previously set vehicle speed is attained.
E. Using caution, press and release the brake pedal. Verify that the Speed Control
disengages.
F. Increase vehicle speed by at least 10 MPH. Press and release the SET switch. Verify the
Speed Control maintains this speed.
G. Press and release the ON/OFF switch (turn the Speed Control OFF.) Verify that the Speed
Control disengages.
If any or all of these functions are not operating properly, refer to the symptom list for the
appropriate diagnostic testing procedures.
7. With the DRBIIIt, Read DTC's. If 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.
8. If there are no DTC's present and all components are functioning properly, the repair is
complete.All
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VERIFICATION TESTS
Verification Tests ÐContinued
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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
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VERIFICATION TESTS
Verification Tests ÐContinued
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