Pinpoint Test H: The Auto-Lock Does Not Operate Correctly

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

H1 VERIFY AUTO-LOCK FEATURE IS ENABLED
- Verify the auto-lock feature is enabled.
- Is the auto-lock feature enabled?
- Yes : GO to H2.
- No : Turn the feature on with any configuration method. CLEAR the DTCs. REPEAT the self-test.
H2 CHECK THE DOOR LOCK CONTROL SWITCH
- Disconnect: Driver or Passenger Door Lock Control Switch.
- Carry out the door lock control switch component test. Refer to COMPONENT TESTING - F250-F550 SUPER DUTY PICK for component testing.
- Is the door lock control switch OK?
- Yes : GO to H3.
- No : INSTALL a new door lock control switch. REFER to DOOR LOCK CONTROL SWITCH in this article. CLEAR the DTCs. REPEAT the self-test.
H3 CHECK ALL VEHICLE SECURITY MODULE DOOR AJAR PIDS FOR CORRECT READINGS
- Key in ON position.
- Enter the following diagnostic mode on the diagnostic tool:
  Vehicle Security Module PIDS.
  
  Monitor all vehicle security module door ajar PID while opening and closing all doors.
- Do the PID values agree with the door positions?
- Yes : GO to H7.
- No : GO to H4.

H4 CHECK THE SUSPECT DOOR AJAR SWITCH CIRCUIT

Key in OFF position.
Disconnect: Suspect Door Ajar Switch Connector.

Connect a jumper wire between the pins of the suspect door ajar switch. Refer to the following chart:

Door	Connector
LF	C526
RF	C602
LR	C715
RR	C820

Fig 1: Connecting Jumper Wire Between Pins Of Suspect Door Ajar Switch

Courtesy of FORD MOTOR CO.

Do the courtesy lamps turnoff?

Yes : INSTALL a new door ajar switch. REFER to DOOR AJAR SWITCH in this article. CLEAR the DTCs. REPEAT the self-test.
No : GO to H5.

H5 CHECK THE SUSPECT DOOR AJAR SWITCH CIRCUIT 57 (BK) FOR AN OPEN

Measure the resistance between the suspect door ajar switch connector pin 2, harness side and ground. Refer to the following chart:

Door Ajar Switch	Circuit
C526 (LF)	57 (BK)
C602 (RF)	57 (BK)
C715 (LR)	57 (BK)
C820 (RR)	57 (BK)

Is the resistance less than 5 ohms?

Yes : GO to H6.
No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

H6 CHECK THE CIRCUIT BETWEEN THE VEHICLE SECURITY MODULE AND THE SUSPECT DOOR AJAR SWITCH FOR AN OPEN

Disconnect: Vehicle Security Module C2113a.

Measure the resistance between the suspect door ajar switch connector pin 1, harness side and the vehicle security module C2113a, harness side. Refer to the following chart:

Door Ajar Switch	Vehicle Security Module-Pin	Circuit
C526 (LF)	C2113a-4	765 (YE/BK)
C602 (RF)	C2113a-5	761 (GY/RD)
C715 (LR)	C2113a-11	759 (LG/YE)
C820 (RR)	C2113a-6	760 (PK/LB)

Is the resistance less than 5 ohms?

Yes : GO to H8.
No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

H7 CHECK THE VEHICLE SECURITY MODULE UBP PIDS
- Enter the following diagnostic mode on the diagnostic tool: Vehicle Security Module PIDS.
  Monitor the vehicle security module UBP vehicle speed, ignition and brake PIDs.
- Is the vehicle security module receiving the correct values?
- Yes : GO to H8.
- No : REFER to MODULE COMMUNICATIONS NETWORK .
H8 CHECK FOR CORRECT VEHICLE SECURITY MODULE OPERATION
- Disconnect all the vehicle security module connectors.
- Check for:
  - corrosion
  - pushed-out pins
- Connect all the vehicle security 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 vehicle security module. REFER to MULTIFUNCTION ELECTRONIC MODULES . REPEAT the self-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.