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Diagnostic Test

WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  1. 1)  DTC STATUS IS ACTIVE 

    Turn the ignition on.

    With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).

    Is the DTC status Active at this time? 

    Yes 

    1. Go to step  2).

    No 

    1. Go to step  5).
  2. 2)  DTCS PRESENT IN PCM 

    Cycle the ignition off and on.

    With the scan tool, select View DTCs in the Powertrain Control Module (PCM).

    Are there any DTCs present on the PCM? 

    Yes 

    1. Refer to the appropriate diagnostic procedure for the PCM DTC.

    No 

    1. Go to step  3).
  3. 3)  DTCS PRESENT IN THE CLUSTER 

    Cycle the ignition off and on.

    With the scan tool, select View DTCs in the Instrument Cluster (CCN).

    Are there any DTCs present on the Cluster? 

    Yes 

    1. Refer to the appropriate diagnostic procedure for the Cluster DTC.

    No 

    1. Go to step  4).
  4. 4)  WIRELESS CONTROL MODULE (SKREEM) 

    Inspect the wiring and connectors relative to this circuit.

    Monitor the scan tool data relative to this circuit while performing a wiggle test on the wiring and connectors. Look for the DTC to reset or for the data to change other that as expected.

    Refer to any Technical Service Bulletins that may apply to this condition.

    If no problems are found view repair.

    Repair 

    1. Replace the Wireless Control Module (SKREEM) in accordance with the Service Information.
  5. 5)  INTERMITTENT VEHICLE SPEED MESSAGE MISSING DTC 

    The conditions necessary to set this DTC are not present at this time.

    Inspect the wiring and connectors relative to this circuit.

    Monitor the scan tool data relative to this circuit while performing a wiggle test on the wiring and connectors. Look for the DTC to reset or for the data to change other that as expected.

    Refer to any Technical Service Bulletins that may apply to this condition.

    With the scan tool, clear DTCs in the Wireless Control Module (SKREEM).

    Test Drive the vehicle for a minimum of 10 minutes with vehicle speed greater than 15 m.p.h.

    With the scan tool, select View DTCs in the Wireless Control Module (SKREEM).

    Does the DTC reset or is the status Active for this DTC? 

    Yes 

    1. Return to the beginning of this test and perform the diagnostic procedure as necessary.

    No 

    1. Test complete.
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