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Pinpoint Test Ax: DTC U0129

  1. AX1 VERIFY THE CUSTOMER CONCERN 
    • Ignition ON.
    • Verify that there is an observable symptom present.
    • Is an observable symptom present? 
    • Yes:  GO to AX2  .
    • No:  The system is operating normally at this time. The DTC may have been set due to high network traffic or intermittent fault condition.
  2. AX2 CHECK THE COMMUNICATION NETWORK 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Network Test.
    • Carry out the network test.
    • Does the ABS module pass the network test? 
  3. AX3 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST 
    • Check for recorded IC DTCs from the self-test.
    • Is DTC B1317 or B1318 recorded? 
  4. AX4 RECHECK THE IC DTCs 
    NOTE: If new modules were installed prior to the DTC being set, the module configuration may be incorrectly set during the Programmable Module Installation (PMI) or the PMI may not have been carried out.
    • Clear the DTCs. Repeat the IC self-test.
    • Is DTC U0129 still present? 
    • Yes:  INSTALL a new ABS module. REFER to VEHICLE DYNAMIC SYSTEMS . CLEAR the DTCs. REPEAT the IC self-test.

      If DTC U0129 is still present, INSTALL a new IC. REFER to INSTRUMENT CLUSTER (IC) . TEST the system for normal operation.

    • No:  The system is operating correctly at this time. The DTC may have been set due to high network traffic.
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