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Pinpoint Test T: The Mil Is Never/Always On

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
  1. T1 CARRY OUT THE IC INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL 
    • Ignition ON.
    • Enter the following diagnostic mode on the scan tool: IC  DataLogger.
    • Select the IC  MIL (MIL_IC) active command mode and command the MIL on and off. Observe the MIL  .
    • Does the MIL illuminate when commanded on and turn off when commanded off? 
    • Yes:  GO to T2  .
    • No:  INSTALL a new IC  . REFER to INSTRUMENT CLUSTER (IC) . TEST the system for normal operation.
  2. T2 RETRIEVE THE RECORDED DTCs FROM THE PCM KOEO SELF-TEST 
    • Check for recorded PCM DTCs from the Key ON Engine OFF (KOEO) self-test.
    • Are any PCM DTCs recorded? 
  3. T3 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST 
    • Check for recorded IC  DTCs from the self-test.
    • Is DTC U0100 recorded? 
    • Yes:  GO to PINPOINT TEST AU .
    • No:  If the MIL  is never on, the system is operating correctly at this time.

      If the MIL  is always on, INSTALL a new PCM. REFER to ELECTRONIC ENGINE CONTROLS . TEST the system for normal operation.

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