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Pinpoint Test E: The Roof Opening Panel Is Inoperative

WARNING: This page is about a different car, the 2004 Lincoln LS. However, it is still accessible from the selected car via links, so may be relevant.
  1. E1 VERIFY POWER WINDOWS ARE OPERATIONAL 
    • Operate the power windows.
    • Do the power windows operate? 
    1. Yes  : GO to E2.
    2. No  : REFER to EXTERIOR TRIM to diagnose the inoperative windows.
  2. E2 VERIFY THE ROOF OPENING PANEL ADJUSTMENT 
    • Verify the roof opening panel is adjusted correctly.
    • Is the roof opening panel adjusted correctly? 
    1. Yes  : GO to E3.
    2. No  : ADJUST the roof opening panel. REFER to ROOF OPENING PANEL ALIGNMENT . REINITIALIZE the roof opening panel. REFER to ROOF OPENING PANEL MOTOR INITIALIZATION . TEST the system for normal operation.
  3. E3 CHECK THE ROOF OPENING PANEL LIFTER ASSEMBLIES FOR OBSTRUCTIONS AND DAMAGE 
    • Check the roof opening panel lifter assemblies for obstructions and damage.
    • Are the roof opening panel lifter assemblies OK? 
    1. Yes  : GO to E4.
    2. No  : REMOVE all obstructions and REPAIR any damage. REINITIALIZE the roof opening panel. REFER to ROOF OPENING PANEL MOTOR INITIALIZATION . TEST the system for normal operation.
  4. E4 CHECK CIRCUIT 30-AG12 (RD/GN) FOR VOLTAGE 
    • Disconnect: Roof Opening Panel Motor C920.
    • Measure the voltage between the roof opening panel motor C920-1, circuit 30-AG12 (RD/GN), harness side and ground.
      Fig 1: Measuring Voltage Between Roof Opening Panel Motor C920-1, Harness Side And Ground
      G03203624Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. Yes  : GO to E5.
    2. No  : REPAIR the circuit. TEST the system for normal operation.
  5. E5 CHECK CIRCUIT 31-AG12 (BK/GN) FOR AN OPEN 
    • Measure the resistance between the roof opening panel motor C920-10, circuit 31-AG12 (BK/GN), harness side and ground.
      Fig 2: Measuring Resistance Between Roof Opening Panel Motor C920-10, CIRCUIT 31-AG12 (BK/GN), Harness Side And Ground
      G03203625Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes  : GO to E6.
    2. No  : REPAIR the circuit. TEST the system for normal operation.
  6. E6 CHECK THE ROOF OPENING PANEL CONTROL SWITCH 
    • Disconnect: Roof Opening Panel Control Switch C912.
    • Carry out the roof opening panel control switch component test. Refer to COMPONENT TEST .
    • Is the roof opening panel control switch OK? 
    1. Yes  : GO to E7.
    2. No  : INSTALL a new roof opening panel control switch. REINITIALIZE the roof opening panel. REFER to ROOF OPENING PANEL MOTOR INITIALIZATION . TEST the system for normal operation.
  7. E7 CHECK CIRCUIT 9-AG7 (BN/RD) FOR A SHORT TO GROUND OR AN OPEN 
    • Measure the resistance between the roof opening panel motor C920-7, circuit 9-AG7 (BN/RD), harness side and ground; and between the roof opening panel motor C920-7, circuit 9-AG7 (BN/RD), harness side and the roof opening panel control switch C912-3, circuit 9-AG7 (BN/RD), harness side.
      Fig 3: Measuring Resistance Between Roof Opening Panel Motor C920-7, Circuit 9-AG7 (BN/RD), Harness Side And Ground
      G03203626Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms between the roof opening panel motor and ground and less than 5 ohms between the roof opening panel control switch and the roof opening panel motor? 
    1. Yes  : GO to E8.
    2. No  : REPAIR the circuit. REINITIALIZE the roof opening panel. REFER to ROOF OPENING PANEL MOTOR INITIALIZATION . TEST the system for normal operation.
  8. E8 CHECK CIRCUIT 10-AJ43B (GY/VT) FOR AN OPEN 
    • Disconnect: DDM C501d.
    • Measure the resistance between the roof opening panel motor C920-3, circuit 10-AJ43B (GY/VT), harness side and the DDM C501d-1, circuit 10-AJ43B (GY/VT), harness side.
      Fig 4: Measuring Resistance Between Roof Opening Panel Motor C920-3, Harness Side
      G03203627Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes  : INSTALL a new roof opening panel motor. REFER to ROOF OPENING PANEL . REINITIALIZE the roof opening panel. REFER to ROOF OPENING PANEL MOTOR INITIALIZATION . TEST the system for normal operation.
    2. No  : REPAIR the circuit. REINITIALIZE the roof opening panel. REFER to ROOF OPENING PANEL MOTOR INITIALIZATION . TEST the system for normal operation.
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