LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1477 (Sunroof - Roof Opening Panel) >> Diagnosis And Testing >> Roof Opening Panel >> Pinpoint Tests >> Pinpoint Test E: The Roof Opening Panel Does Not Open or Close >> Pinpoint Test E: The Roof Opening Panel Does Not Open Or Close

Pinpoint Test E: The Roof Opening Panel Does Not Open Or Close

WARNING: This page is about a different car, the 2010 Mercury Mariner and 2010 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. E1 CHECK THE POWER WINDOW OPERATION 
    • Ignition ON.
    • Verify the power windows operate.
    • Do the power windows operate? 
    • Yes:  GO to E2  .
    • No:  REFER to DIAGNOSIS AND TESTING to diagnose the accessory delay relay circuit.
  2. E2 CHECK THE ROOF OPENING PANEL SWITCH 
    • Ignition OFF.
    • Disconnect: Roof Opening Panel Switch C912.
    • Carry out the roof opening panel control switch component test.

      Refer to COMPONENT TESTING , COMPONENT TESTING - HYBRID for component testing.

    • Did the roof opening panel control switch pass the component test? 
    • Yes:  GO to E3  .
    • No:  INSTALL a new roof opening panel switch. TEST the system for normal operation.
  3. E3 CHECK VOLTAGE TO THE ROOF OPENING PANEL MOTOR 
    • Ignition OFF.
    • Disconnect: Roof Opening Panel Module C921.
    • Ignition ON.
    • Measure the voltage between the roof opening panel motor C921-1, circuit SBP04 (GN/RD), harness side and ground; and between roof opening panel motor C921-2, circuit CBP41 (BU), harness side and ground.
      Fig 1: Checking Voltage To Roof Opening Panel Motor
      G06099953Courtesy of FORD MOTOR CO.
    • Are the voltages greater than 10 volts? 
    • Yes:  GO to E4  .
    • No:  VERIFY Smart Junction Box (SJB) fuses 4 (30A) and 41 (15A) are OK. If OK, REPAIR the circuit. TEST the system for normal operation.

      If not OK, REFER to the appropriate SYSTEM WIRING DIAGRAMS article to identify the possible causes of the circuit short. TEST the system for normal operation.

  4. E4 CHECK THE ROOF OPENING PANEL MOTOR GROUND CIRCUIT 
    • Ignition OFF.
    • Measure the resistance between the roof opening panel motor C921-4, circuit GD182 (BK/GY), harness side and ground.
      Fig 2: Checking Circuit
      G06099954Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to E5  .
    • No:  REPAIR the circuit. TEST the system for normal operation.
  5. E5 CHECK CIRCUIT CPR39 (VT/WH) FOR AN OPEN OR SHORT TO GROUND 
    • Measure the resistance between the roof opening panel motor C921-11, circuit CPR39 (VT/WH), harness side and roof opening panel switch C912-4, circuit CPR39 (VT/WH), harness side; and between roof opening panel motor C921-11, circuit CPR39 (VT/WH), harness side and ground.
      Fig 3: Checking Circuit
      G06099955Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the roof opening panel motor and roof opening panel switch; and greater than 10,000 ohms between the roof opening panel motor and ground? 
    • Yes:  GO to E6  .
    • No:  REPAIR the circuit. TEST the system for normal operation.
  6. E6 CHECK CIRCUIT CPR40 (YE/OG) FOR AN OPEN OR SHORT TO GROUND 
    • Measure the resistance between the roof opening panel motor C921-6, circuit CPR40 (YE/OG), harness side and roof opening panel switch C912-7, circuit CPR40 (YE/OG), harness side; and between roof opening panel motor C921-6, circuit CPR40 (YE/OG), harness side and ground.
      Fig 4: Checking Circuit
      G06099956Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the roof opening panel motor and roof opening panel switch; and greater than 10,000 ohms between the roof opening panel motor and ground? 
    • Yes:  GO to E7  .
    • No:  REPAIR the circuit. TEST the system for normal operation.
  7. E7 CHECK CIRCUIT CPR31 (VT/BN) FOR AN OPEN OR SHORT TO GROUND 
    • Measure the resistance between the roof opening panel motor C921-5, circuit CPR31 (VT/BN), harness side and roof opening panel switch C912-3, circuit CPR31 (VT/BN), harness side; and between roof opening panel motor C921-5, circuit CPR31 (VT/BN), harness side and ground.
      Fig 5: Checking Circuit
      G06099957Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms between the roof opening panel motor and roof opening panel switch; and greater than 10,000 ohms between the roof opening panel motor and ground? 
    • Yes:  GO to E8  .
    • No:  REPAIR the circuit. TEST the system for normal operation.
  8. E8 CHECK THE ROOF OPENING PANEL MOTOR FOR CORRECT OPERATION 
    • Check all roof opening panel motor and switch electrical connectors.
    • Check for:
      • corrosion.
      • bent pins.
      • pushed-out pins.
    • Connect all roof opening panel motor and switch electrical connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    • Yes:  INSTALL a new roof opening panel motor. REFER to ROOF OPENING PANEL MOTOR . TEST the system for normal operation.
    • No:  The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. TEST the system for normal operation.
scientia non olet · About LEMON Manuals