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Pinpoint Test AF: U0294:00

  1. Normal Operation and Fault Conditions 

    The DDM/ PDM communicates with the PCM over the CAN. If the DDM/ PDM does not receive messages from the PCM, the window inhibit feature during a start/stop event can be inoperative.

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    DDM U0294:00 Lost Communication With Powertrain Control Monitor Module: No Sub Type Information Sets when the DDM detects data messages are missing from the PCM.
    PDM U0294:00 Lost Communication With Powertrain Control Monitor Module: No Sub Type Information Sets when the PDM detects data messages are missing from the PCM.

    Possible Sources 

    • Network communication concern
    • DDM
    • PDM
    • PCM

  2. AF1 VERIFY THE CUSTOMER CONCERN

    • Ignition ON.

    • Verify there is an observable symptom present.

    Is an observable symptom present? 

    Yes  GO to  AF2
    No  The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  3. AF2 CHECK THE COMMUNICATION NETWORK

    • Using a diagnostic scan tool, carry out the network test.

    Does the PCM pass the network test? 

    Yes  GO to  AF3
    No  REFER to: Communications Network .

  4. AF3 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

    • Using a diagnostic scan tool, carry out the PCM KOEO and KOER self-tests.

    Are any voltage related Diagnostic Trouble Codes (DTCs) present? 

    Yes  REFER to the PCM DTC Chart in the appropriate Electronic Engine Controls article.
    No  GO to  AF4

  5. AF4 RECHECK THE DDM (DRIVER DOOR MODULE) / PDM (PASSENGER DOOR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

    NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during PMI or the PMI may not have been carried out.

    • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) and repeat the DDM/ PDM self-test.

    Is DTC U0294:00 still present? 

    Yes  GO to  AF5
    No  The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

  6. AF5 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0294 SET IN OTHER MODULES

    • Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs).

    • Ignition OFF.

    • Ignition ON.

    • Wait 30 seconds.

    • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs) from all modules.

    Is DTC U0294 set in other modules? 

    Yes  Refer to PCM GUIDED ROUTINE TESTING
    No  INSTALL a new DDM or PDM. REFER to: Front Door Module (FDM) .
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