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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1031 (Windows And Glass) >> Diagnostic Tests >> Glass, Frames and Mechanisms >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2007 Mercury Mariner and 2007 Ford Escape. 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
    • Window regulator assembly
    • Window glass
    • Rear window defrost grid
    • Smart junction box (SJB) fuse(s):
      • 4 (10A)
      • 15 (30A)
    • Battery junction box (BJB) fuse(s):
      • 1 (25A)
      • 19 (40A)
      • 23 (40A)
    • Accessory delay relay
    • Window motor
    • Window control switch
    • Circuitry
  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 smart junction box (SJB).
  7. Carry out the network test.
    • If the scan tool responds with no communication from one or more modules, refer to MODULE COMMUNICATIONS NETWORK article.
    • If the network test passes, retrieve and record the continuous memory diagnostic trouble codes (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 the SJB Diagnostic Trouble Code (DTC) Index. 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) DIAGNOSTIC TROUBLE CODE (DTC) INDEX

DTC Description Source Action
B1302 Accessory Delay Relay Coil Circuit Failure SJB Go to Pinpoint Test I .
B1304 Accessory Delay Relay Coil Circuit Short To Battery SJB If the accessory delay is always on, go to Pinpoint Test H .
If the accessory delay is inoperative, go to Pinpoint Test I .
B1345 Rear Defrost Switch/Circuit Short to Ground SJB Go to Pinpoint Test F .
B1347 Rear Defrost Relay Coil Circuit Failure SJB If the rear window does not defrost, go to Pinpoint Test F .
If the rear window defrost does not turn off, go to Pinpoint Test G .
B1349 Rear Defrost Relay Coil Circuit Short to Battery SJB Go to Pinpoint Test F .

For a complete list of SJB DTCs, refer to MULTIFUNCTION ELECTRONIC MODULES article.

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