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Pinpoint Test A: The Luggage Compartment Lid Is Inoperative - From The Remote Switch: Overview

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. A1 CHECK THE LUGGAGE COMPARTMENT LID REMOTE SWITCH INPUT TO FEM 
    NOTE: Cycle the key from OFF to ON to enable the switched system power feature.
    • Key in OFF position.
    • Unlock the luggage compartment release switch with the valet key.
    • Connect the diagnostic tool.
    • Key in ON position.
    • Enter the following diagnostic mode on the diagnostic tool: Monitor the FEM luggage compartment lid remote switch PID.
    • Press and release the luggage compartment lid remote switch.
    • Does the FEM luggage compartment lid remote switch PID agree with the luggage compartment lid remote switch position? 
    1. Yes  : GO to  A7.
    2. No  : If the FEM luggage compartment lid remote switch PID indicates ON, GO to A2.

      If the PID indicates OFF, GO to  A4.

  2. A2 CHECK THE LUGGAGE COMPARTMENT LID REMOTE SWITCH 
    • Enter the following diagnostic mode on the diagnostic tool: Monitor the FEM luggage compartment lid remote switch PID.
    • Disconnect: Luggage Compartment Lid Remote Switch C207.
    • Did the FEM luggage compartment lid remote switch PID change from ON to OFF? 
    1. Yes  : INSTALL a new luggage compartment lid remote switch. CLEAR the DTCs. REPEAT the self-test.
    2. No  : GO to A3.
  3. A3 CHECK CIRCUIT 8-AA30 (WH) FOR A SHORT TO GROUND 
    • Key in OFF position.
    • Disconnect: FEM C201e.
    • Measure the resistance between the FEM C201e-4, circuit 8-AA30 (WH), harness side and ground.
      Fig 1: Measuring Resistance Between FEM C201E-4, Harness Side And Ground
      G03203912Courtesy of FORD MOTOR CO.
    • Is the resistance greater than 10,000 ohms? 
    1. Yes  : GO to  A7.
    2. No  : GO to A4.
  4. A4 CHECK CIRCUIT 8-AA30 (WH) FOR AN OPEN 
    • Disconnect: FEM C201e.
    • Disconnect: Luggage Compartment Lid Remote Switch C207.
    • Measure the resistance between the FEM C201e-4, circuit 8-AA30 (WH), harness side and the luggage compartment lid remote switch C207-1, circuit 8-AA30 (WH), harness side.
      Fig 2: Measuring Resistance Between FEM C201E-4 And Luggage Compartment Lid Remote Switch C207-1, Harness Side
      G03203913Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes  : Connect all disconnected connectors and GO to A5.
    2. No  : REPAIR the circuit. TEST the system for normal operation.
  5. A5 CHECK THE LUGGAGE COMPARTMENT LID REMOTE SWITCH 
    • Key in OFF position.
    • Enter the following diagnostic mode on the diagnostic tool: Monitor the FEM luggage compartment lid remote switch PID.
    • Connect a 10A fused jumper wire between the luggage compartment lid remote switch C207-2, circuit 31-AA30 (BK/YE), harness side and the luggage compartment lid remote switch C207-1, circuit 8-AA30 (WH), harness side, while monitoring the FEM luggage compartment lid remote switch PID.
      Fig 3: Connecting 10A Fused Jumper Wire Between Luggage Compartment Lid Remote Switch C207-2, Harness Side And Luggage Compartment Lid Remote Switch C207-1, Harness Side
      G03203914Courtesy of FORD MOTOR CO.
    • Did the FEM luggage compartment lid remote switch PID change from OFF to ON? 
    1. Yes  : INSTALL a new luggage compartment lid remote switch. CLEAR the DTCs. REPEAT the self-test.
    2. No  : GO to A6.
  6. A6 CHECK CIRCUIT 31-AA30 (BK/YE) FOR AN OPEN 
    • Measure the resistance between the luggage compartment lid remote switch C207-2, circuit 31-AA30 (BK/YE), harness side and ground.
      Fig 4: Measuring Resistance Between Luggage Compartment Lid Remote Switch C207-2, Harness Side And Ground
      G03203915Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. Yes  : GO to A7.
    2. No  : REPAIR the circuit 31 -AA30 (BK/YE) or circuit 31-DA3(BK/OG). CLEAR the DTCs. REPEAT the self-test.
  7. A7 CHECK FOR CORRECT FEM OPERATION 
    • Disconnect all FEM connectors.
    • Check for:
      • corrosion
      • pushed-out pins
    • Connect all FEM connectors and make sure they seat correctly.
    • Operate the system and verify the concern is still present.
    • Is the concern still present? 
    1. Yes  : INSTALL a new FEM. REFER to MODULE COMMUNICATIONS NETWORK - LS for the removal and installation procedure. TEST the system for normal operation.
    2. No  : The system is operating correctly at this time. Concern may have been caused by a loose or corroded connector. CLEAR the DTCs. TEST the system for normal operation.
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