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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 A: All Power Windows are Inoperative - MKZ >> Pinpoint Test A: All Power Windows Are Inoperative - MKZ

Pinpoint Test A: All Power Windows Are Inoperative - MKZ

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. A1 CHECK CIRCUITS CBP02 (GN) AND CPW30 (GY/YE) FOR VOLTAGE 
    • Disconnect: LH Front Window Control Switch C535A
    • Disconnect: LH Front Window Control Switch C535B
    • Key in ON position.
      • Fig 1: Checking Circuit CBP02 (GN) And CPW30 (GY/YE) For Voltage
      GF0028348Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH front window control switch C535A-3, circuit CBP02 (GN), harness side and ground; and between LH front window control switch C535B-3, circuit CPW30 (GY/YE), harness side and ground.
    • Is the voltage greater than 10 volts for both measurements? 
    1. YES  : INSTALL a new LH front window control switch. REFER to Window Control Switch . TEST the system for normal operation.
    2. NO  : VERIFY SJB fuse 12 (7.5A) is OK. If OK, go to  A2. If not OK, REFER to SYSTEM WIRING DIAGRAMS article to identify the possible causes of the circuit short.
  2. A2 CHECK CIRCUITS CBP02 (GN) AND CPW30 (GY/YE) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280E
      • Fig 2: Checking Circuit CBP02 (GN) And CPW30 (GY/YE) For Resistance
      GF0028349Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window control switch C535A-3, circuit CBP02 (GN), harness side and SJB C2280E-25, circuit CBP02 (GN), harness side; and between LH front window control switch C535B-3, circuit CPW30 (GY/YE), harness side and SJB C2280E-4, circuit CPW30 (GY/YE), harness side.
    • Are the resistances less than 5 ohms for both measurements? 
    1. YES  : Go to Pinpoint Test L  to diagnose the accessory delay relay circuit.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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