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Inspection and Verification

WARNING: This page is about a different car, the 2009 Mercury Grand Marquis and 2009 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Ignition key
    • Ignition switch
    • Multifunction switch
    • Steering column shrouds
    • Battery Junction Box (BJB) fuse 1 (30A)
    • Central Junction Box (CJB) fuse(s):
      • 1 (10A)
      • 3 (5A)
      • 5 (7.5A)
      • 7 (10A)
      • 9 (7.5A)
      • 11 (15A)
      • 13 (10A)
      • 15 (10A)
      • 17 (10A)
      • 20 (10A)
      • 22 (10A)
      • 24 (10A)
      • 26 (10A)
    • Lighting Control Module (LCM)
    • Wiring, terminals or connectors
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
    4. NOTE: Make sure to use the latest scan tool software release.
  4. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
    5. NOTE: The Vehicle Communication Module (VCM) LED prove out confirms power and ground from the DLC are provided to the VCM.
  5. If the scan tool does not communicate with the VCM:
    • check the VCM connection to the vehicle.
    • check the scan tool connection to the VCM.
    • refer to MODULE COMMUNICATIONS NETWORK article, No Power To The Scan Tool, to diagnose no communication with the scan tool.
  6. If the scan tool does not communicate with the vehicle:
    • verify the ignition key is in the ON position.
    • verify the scan tool operation with a known good vehicle.
    • refer to MODULE COMMUNICATIONS NETWORK article to diagnose no response from the PCM.
  7. Carry out the network test.
    • If the scan tool responds with no communication for one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
    • If the network test passes, retrieve and record continuous memory DTCs.
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the Lighting Control Module (LCM).
  9. If the DTCs retrieved are related to the concern, go to LIGHTING CONTROL MODULE (LCM) DIAGNOSTIC TROUBLE CODE INDEX . For all other DTCs, refer to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
LIGHTING CONTROL MODULE (LCM) DIAGNOSTIC TROUBLE CODE INDEX

DTC Description DTC Caused By Action
B1352 Ignition Key-In Circuit Failure Lighting Control Module (LCM) REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article.
B1359 Ignition RUN/ACC Circuit Failure LCM Go to Pinpoint Test B .
B1555 RUN/START Input Circuit Failure LCM Go to Pinpoint Test C .
- All other LCM DTCs LCM REFER to the Master DTC Chart in MULTIFUNCTION ELECTRONIC MODULES article.
Symptom Chart

Condition Possible Sources Action
  • No communication with the Lighting Control Module (LCM)
  • Fuse(s)
  • Wiring, terminals or connectors
  • LCM
  • No power in all ignition switch positions
  • Fuse(s)
  • Ignition switch
  • Wiring, terminals or connectors
  • No power in RUN/ACC
  • Fuse(s)
  • Central Junction Box (CJB)
  • Ignition switch
  • Wiring, terminals or connectors
  • No power in RUN/START
  • Fuse(s)
  • CJB
  • Ignition switch
  • Wiring, terminals or connectors
  • The ignition key is hard to turn
  • Ignition key
  • Ignition lock cylinder
  • Ignition switch
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