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Home >> Mercury >> 2009 >> Mariner Base, 2.5 7, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Information Center - Instrumentation, Message Center, & Warning Chimes >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test AT: DTC U0101 >> Pinpoint Test At: DTC U0101

Pinpoint Test At: DTC U0101

  1. AT1 VERIFY THE CUSTOMER CONCERN 
    • Ignition ON.
    • Verify that there is an observable symptom present.
    • Is an observable symptom present? 
    • Yes:  GO to AT2  .
    • 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. AT2 CHECK THE COMMUNICATION NETWORK 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Network Test.
    • Carry out the network test.
    • Does the TCM pass the network test? 
  3. AT3 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. AT4 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 U0101 still present? 
    • Yes:  GO to AT5  .
    • 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.
  5. AT5 CHECK FOR DTC U0101 SET IN OTHER MODULES 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: Self-Test.
    • Retrieve the continuous memory DTCs from all modules.
    • Is DTC U0101 set in the Battery Control Module (BCM) module? 
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