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Home >> Lincoln >> 2007 >> Navigator RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Information Center >> Diagnostic Tests >> Information And Message Center >> Inspection and Verification

Inspection and Verification

  1. Verify the customer concern.
  2. Visually inspect the following for obvious signs of mechanical or electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Brake fluid level
    • Engine coolant level
    • Engine oil level
    • Fuel level
    • Washer fluid level
    • Fuel tank
    • Accessory drive belt
    • Tire pressure
    • Smart junction box (SJB) fuse(s):
      • 26 (10A)
      • 29 (5A)
      • 31 (10A)
    • Circuitry
    • Compass module
    • Message center switch
    • Instrument cluster
  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 powertrain control module (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 the continuous memory DTCs.
  8. Clear the continuous DTCs and carry out the self-test diagnostics for the instrument cluster.
  9. If the DTCs retrieved are related to the concern, refer to the Instrument Cluster Diagnostic Trouble Code (DTC) Chart.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
INSTRUMENT CLUSTER DIAGNOSTIC TROUBLE CODE (DTC) CHART

DTC Description Action
B1255 Air Temperature External Sensor Circuit Open Go to Pinpoint Test E .
B1257 Air Temperature External Sensor Circuit Short to Ground Go to Pinpoint Test E .
B2097 Compass Module Failure Go to Pinpoint Test C .
U2013 Compass Module Is Not Responding Go to Pinpoint Test C .
All other DTCs - REFER to INSTRUMENT CLUSTER article.
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