Pinpoint Test C: The Luggage Compartment Lid Is Inoperative - From The Luggage Compartment Lid Switch

WARNING: This page is about a different car, the 2006 Mercury Milan, 2006 Lincoln Zephyr, and 2006 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Use the correct probe adaptor(s) when making measurements. Failure to use the correct probe adaptor(s) may damage the connector.

C1 CHECK THE SJB LUGGAGE COMPARTMENT LID OPERATION
- Enter the following diagnostic mode on the scan tool: SJB luggage compartment lid active command.
- Does the luggage compartment lid operate correctly?
Yes : GO to C2.

No : GO to C5.
C2 CHECK THE LUGGAGE COMPARTMENT LID SWITCH
- Key in OFF position.
- Disconnect: Luggage Compartment Lid Switch C2269.
- Measure the resistance between the luggage compartment switch pin 1, component side and the luggage compartment switch pin 5, component side.
  
  Fig 1: Checking Luggage Compartment Lid Switch
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms with the button pressed and greater than 10,000 ohms with the button released?
Yes : GO to C3.

No : INSTALL a new luggage compartment lid switch. CLEAR the DTCs. REPEAT the self-test.
C3 CHECK CIRCUIT GD116 (BK/VT) FOR AN OPEN
- Measure the resistance between the luggage compartment switch C2269-1, circuit GD116 (BK/VT), harness side and ground.
  
  Fig 2: Checking Circuit GD116 (BK/VT) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes : GO to C4.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
C4 CHECK CIRCUIT CPL45 (BN) FOR AN OPEN OR A SHORT TO GROUND
- Disconnect: SJB C2280d.
- Measure the resistance between the luggage compartment lid switch C2269-5, circuit CPL45 (BN), harness side and the SJB C2280d-27, circuit CPL45 (BN), harness side; and between the luggage compartment lid switch C2269-5, circuit CPL45 (BN), harness side and ground.
  
  Fig 3: Checking Circuit CPL45 (BN) For Open Or Short To Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms between the SJB and luggage compartment lid switch, and greater than 10,000 ohms between the luggage compartment lid switch and ground?
Yes : GO to C8.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
C5 CHECK CIRCUIT CPL10 (GN/WH) FOR AN OPEN OR A SHORT TO GROUND
- Disconnect: SJB C2280e.
- Disconnect: Luggage Compartment Lid Latch C429.
- Measure the resistance between the SJB C2280e-23, circuit CPL10 (GN/WH), harness side and the luggage compartment lid latch C429-2, circuit CPL10 (GN/WH), harness side; and between the luggage compartment lid latch C429-2, circuit CPL10 (GN/WH), harness side and ground.
  
  Fig 4: Checking Circuit CPL10 (GN/WH) For Open Or Short To Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms between the SJB and the luggage compartment lid latch, and greater than 10,000 ohms between the luggage compartment lid latch and ground?
Yes : GO to C6.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
C6 CHECK CIRCUIT GD171 (BK/GY) FOR AN OPEN
- Measure the resistance between the luggage compartment lid latch C429-3, circuit GD171 (BK/GY), harness side and ground.
  
  Fig 5: Checking Circuit 1205 (BK) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes : GO to C7.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
C7 CHECK THE LUGGAGE COMPARTMENT LID LATCH FOR CORRECT OPERATION
- Momentarily, connect a fused (5A) jumper wire between the luggage compartment lid latch C429-2, component side and the battery positive terminal; and between the luggage compartment lid latch C429-3, component side and ground.
  
  Fig 6: Checking Luggage Compartment Lid Latch
  Courtesy of FORD MOTOR CO.
- Does the luggage compartment lid latch operate correctly?
Yes : GO to C8.

No : INSTALL a new luggage compartment lid latch. REFER to LUGGAGE COMPARTMENT LID LATCH . CLEAR the DTCs. REPEAT the self-test.
C8 CHECK FOR CORRECT SJB MODULE OPERATION
- Disconnect all the SJB module connectors.
- Check for:
  - Corrosion
  - Pushed-out pins
- Connect all the SJB module 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 SJB. REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . CYCLE each key to the ON position for a minimum of 6 seconds to program the RKE function of the integrated keys. INFORM the customer that any integrated keys not present need to be programmed. TEST the system for normal operation.

No : The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.