Pinpoint Test O: The Luggage Compartment Lid Module Does Not Respond To The Diagnostic Tool

WARNING: This page is about a different car, the 2005 Lincoln Town Car. However, it is still accessible from the selected car via links, so may be relevant.

O1 CHECK THE LUGGAGE COMPARTMENT LID MODULE C4081A FOR DAMAGE
- Key in OFF position.
- Disconnect: Luggage Compartment Lid Module C4081a.
- Inspect the luggage compartment lid module C4081a for damage.
- Is the luggage compartment lid module C4081a OK?
- Yes : GO to O2.
- No : REPAIR the luggage compartment lid module C4081a. CARRY OUT the diagnostic tool data link test.
O2 CHECK CIRCUIT 70 (LB/WH) BETWEEN THE DATA LINK CONNECTOR (DLC) C251 AND THE LUGGAGE COMPARTMENT LID MODULE C4081A FOR AN OPEN
- Measure the resistance between the luggage compartment lid module C4081a pin 7, circuit 70 (LB/WH), harness side and the DLC C251 pin 7, circuit 70 (LB/WH), harness side.
  
  Fig 1: Measuring Resistance Between Luggage Compartment Lid Module C4081a Pin 7, Circuit 70 (LB/WH), Harness Side And DLC C251 Pin 7, Circuit 70 (LB/WH), Harness Side
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
- Yes : GO to O3.
- No : REPAIR the circuit in question. CARRY OUT the diagnostic tool data link test.
O3 CHECK FOR CORRECT LUGGAGE COMPARTMENT LID MODULE OPERATION
- Disconnect all the luggage compartment lid module connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all the luggage compartment lid 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 luggage compartment lid module. Refer to BODY CLOSURES . CARRY OUT the diagnostic tool data link test.
- 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. CARRY OUT the diagnostic tool data link test.