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Inspection and Verification

WARNING: This page is about a different car, the 2009 Mercury Sable, 2009 Ford Taurus X, and 2009 Ford Taurus. 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 and electrical damage.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Wiper linkage
    • Washer nozzles
    • Washer pump hoses
    • Battery junction box (BJB) fuse(s):
      • 3 (30A)
      • 25 (25A)
    • Smart junction box (SJB) fuse 45 (5A)
    • Multi-function switch
    • Windshield wiper motor
    • Rear window wiper motor
    • Washer pump
    • Circuitry
    • BJB
    • SJB
  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: The windshield wiper motor does not communicate on the network. The windshield wiper motor provides wiper on/off status directly to the SJB.
    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 SJB.
  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 SJB.
  9. If the DTCs retrieved are related to the concern, go to Smart Junction Box (SJB) DTC Table. For all other DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.
  10. If no DTCs related to the concern are retrieved, go to Symptom Chart .
SMART JUNCTION BOX (SJB) DTC TABLE

DTC Description Source Action
B2008 Wipers On Signal Circuit Short to Ground SJB Go to Pinpoint Test J .
B2077 Liftgate Ajar Switch Circuit Failure SJB REFER to INTERIOR LIGHTING article to diagnose the liftgate ajar switch concern before attempting to diagnose wiper system concerns.
All other DTCs - SJB REFER to the Master DTC Table in MULTIFUNCTION ELECTRONIC MODULES article.
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