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Home >> Mercury >> 2008 >> Milan Base, 2.3 Z, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1393 (Windows & Glass - Glass, Frames & Mechanisms) >> Diagnostic Tests >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test N: The Defrost System Will Not Shut Off Automatically - Fusion, Milan >> Pinpoint Test N: The Defrost System Will Not Shut Off Automatically - Fusion, MILAN

Pinpoint Test N: The Defrost System Will Not Shut Off Automatically - Fusion, MILAN

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
  1. N1 CHECK CIRCUIT CLS38 (VT/WH) FOR SHORT TO VOLTAGE 
    • Disconnect: SJB C2280E
    • Disconnect: Rear Window Defrost Grid Power C402A
    • Key in ON position.
      • Fig 1: Checking Circuit For Voltage
      GF0001984Courtesy of FORD MOTOR CO.
    • Measure the voltage between rear window defrost grid power C402A-1, circuit CLS38 (VT/WH), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : REPAIR the circuit. TEST the system for normal operation.
    2. NO  : INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article for the removal and installation procedure. TEST the system for normal operation.
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