Pinpoint Test B: The Luggage Compartment Lid Is Inoperative - From The Remote Switch And The Remote Transmitter: 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.

B1 CHECK THE LUGGAGE COMPARTMENT LID REMOTE SWITCH INPUT TO THE FEM
- Key in OFF position.
- 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 B2.
2. No : GO to B7.
B2 CHECK THE REM OUTPUT USING ACTIVE COMMANDS
- Trigger the REM active command RELEASE ON.
- Does the luggage compartment lid release?
1. Yes : GO to B7.
2. No : GO to B3.
B3 CHECK LUGGAGE COMPARTMENT LID REMOTE SWITCH OUTPUT FROM THE REM
- Disconnect: Luggage Compartment Lid Actuator C430.
- Enter the following diagnostic mode on the diagnostic tool: Trigger the REM luggage compartment lid release active command ON.
- Measure the voltage between the luggage compartment lid actuator C430-2, circuit 29S-AA83 (OG), harness side and ground.
  
  Fig 1: Measuring Voltage Between Luggage Compartment Lid Actuator C430-2, CIRCUIT 29S-AA83 (OG), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the voltage greater than 10 volts?
1. Yes : GO to B4.
2. No : GO to B5.
B4 CHECK CIRCUIT 31-AA83 (BK/OG) FOR AN OPEN
- Key in OFF position.
- Measure the resistance between the luggage compartment lid actuator C430-3, circuit 31-AA83 (BK/OG), harness side and ground.
  
  Fig 2: Measuring Resistance Between Luggage Compartment Lid Actuator C430-3, Circuit 31-AA83 (BK/OG), Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes : INSTALL a new luggage compartment lid actuator. CLEAR the DTCs. REPEAT the self-test.
2. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
B5 CHECK CIRCUIT 29S-AA83 (OG) FOR AN OPEN
- Key in OFF position.
- Disconnect: REM C420c.
- Measure the resistance between the REM C420c-10, circuit 29S-AA83 (OG), harness side and the luggage compartment lid actuator C430-2, circuit 29S-AA83 (OG), harness side.
  
  Fig 3: Measuring Resistance Between REM C420C-10, And Luggage Compartment Lid Actuator C430-2, Circuit 29S-AA83 (OG), Harness Side
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
1. Yes : GO to B6.
2. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
B6 CHECK CIRCUIT 29S-AA83 (OG) FOR A SHORT TO GROUND_
- Measure the resistance between the REM C420c-10, circuit 29S-AA83 (OG) harness side and ground.
  
  Fig 4: Measuring Resistance Between REM C420C-10, Circuit 29S-AA83 (OG) Harness Side And Ground
  Courtesy of FORD MOTOR CO.
- Is the resistance greater than 10,000 ohms?
1. Yes : GO to B7.
2. No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.
B7 CHECK FOR CORRECT REM OPERATION
- Disconnect all REM connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all REM 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 REM. REFER to MODULE COMMUNICATIONS NETWORK - LS . 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.