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Pinpoint Test I: DTC U0140:87

WARNING: This page is about a different car, the 2013 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
  1. I1 VERIFY THE CUSTOMER CONCERN 
    • Ignition ON.
    • Verify there is an observable symptom present.
    • Is an observable symptom present? 
    • Yes  : GO to I2.
    • 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.
  2. I2 CHECK THE COMMUNICATION NETWORK 
    • Ignition ON.
    • Using a scan tool, carry out the Network Test.
    • Do both the BCM and the TPM module pass the Network Test? 
    • Yes  : GO to I3.
    • No  : If either module does not pass the Network Test, REFER to MODULE COMMUNICATIONS NETWORK to diagnose the BCM does not respond to the scan tool or the TPM module does not respond to the scan tool.
  3. I3 CHECK THE TPM MODULE CMDTCs 
    • Using a scan tool, carry out the TPM module self-test.
    • Using a scan tool, clear the TPM module DTCs.
    • Ignition OFF.
    • Wait 10 seconds.
    • Ignition ON.
    • Using a scan tool, carry out the TPM module self-test.
    • Is DTC U0140:87 retrieved again? 
    • Yes  : GO to I4.
    • 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.
  4. I4 CHECK FOR DTCs IN THE BCM 
    • Using a scan tool, carry out the BCM self-test.
    • Is DTC U3003:16 or U3003:17 present? 
    • Yes  : TPM module DTC U0140:87 may have been set due to a voltage issue in the BCM. REFER to the BCM DTC Chart in MULTIFUNCTION ELECTRONIC MODULES .
    • No  : GO to I5.
  5. I5 CHECK FOR DTC U0140, U0140:00, OR U0140:87 SET IN OTHER MODULES 
    • Clear the CMDTCs from all modules.
    • Ignition OFF.
    • Ignition ON.
    • Wait 10 seconds.
    • Using a scan tool, retrieve the CMDTCs from all modules.
    • Is DTC U0140, U0140:00, or U0140:87 set in more than one module? 
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