Pinpoint Test G: The Doors Do Not Lock/Unlock Using The Remote Keyless Entry (RKE) Keypad

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.

G1 CHECK THE LOCK/UNLOCK OPERATION FROM THE LH FRONT DOOR LOCK CONTROL SWITCH
- Lock and unlock all the doors using the LH front door lock control switch.
- Do all the doors lock and unlock correctly?
Yes : GO to G2.

No : GO to SYMPTOM CHART to diagnose the inoperative door locks.
G2 CHECK THE FACTORY KEYLESS ENTRY KEYCODE
- Enter the following diagnostic mode on the scan tool: SJB PID.
- Monitor the SJB PID keycode.
- Record the keycode.
- Does the recorded keycode match the keycode on the factory label?
Yes : GO to G3.

No : CHECK the operation of the factory keycode. If OK, NOTIFY the customer of the code. If still inoperative, GO to G4.
G3 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCs)
- Retrieve the recorded results from the SJB self-test.
- Are DTCs B2695, B2696 or B2697 recorded?
Yes : GO to G5.

No : GO to G4.
G4 CHECK THE RKE KEYPAD OPERATION
- Enter the following diagnostic mode on the scan tool: SJB PID.
- Monitor SJB PID KEY_PAD, pressing each RKE keypad button while viewing the PIDs.
- Do the SJB PID values agree with the RKE keypad switch positions?
Yes : GO to G9.

No : GO to G7.

G5 CHECK THE RKE KEYPAD INPUT TO SJB FOR A SHORT TO GROUND

Key in OFF position.
Disconnect: SJB C2280c.

Measure the resistance between the SJB C2280c connector pin, harness side and ground as follows:

SJB CIRCUIT REFERENCE

SJB	Circuit
C2280c-15	CPK29 (GY/BU)
C2280c-16	CPK30 (VT/GN)
C2280c-21	CPK31 (YE/GN)

Are the resistances greater than 10,000 ohms?

Yes : GO to G9.

No : GO to G6.

G6 CHECK FOR STUCK OR STICKING RKE KEYPAD

Disconnect: RKE Keypad C530.

Measure the resistance between the SJB C2280c connector pin, harness side and ground as follows:

SJB CIRCUIT REFERENCE

SJB	Circuit
C2280c-15	CPK29 (GY/BU)
C2280c-16	CPK30 (VT/GN)
C2280c-21	CPK31 (YE/GN)

Are the resistances greater than 10,000 ohms?

Yes : INSTALL a new RKE keypad. REFER to REMOTE KEYLESS ENTRY KEYPAD . CLEAR the DTCs. REPEAT the self-test.

No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

G7 CHECK CIRCUIT GD126 (BK/WH) FOR AN OPEN
- Measure the resistance between the RKE keypad C530-2, circuit GD126 (BK/WH), harness side and ground.
  
  Fig 1: Checking Circuit GD126 (BK/WH) For Open
  Courtesy of FORD MOTOR CO.
- Is the resistance less than 5 ohms?
Yes : GO to G8.

No : REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test.

G8 CHECK THE RKE KEYPAD CIRCUITS FOR AN OPEN

Measure the resistance between the SJB C2280c connector-pin, harness side and the RKE keypad C530 connector-pin as follows:

CONNECTOR PINOUT REFERENCE

SJB	Circuit	RKE Keypad
C2280c-15	CPK29 (GY/BU)	C530-7
C2280c-16	CPK30 (VT/GN)	C530-5
C2280c-21	CPK31 (YE/GN)	C530-1

Are the resistances less than 5 ohms?

Yes : INSTALL a new RKE keypad. REFER to REMOTE KEYLESS ENTRY KEYPAD . CLEAR the DTCs. REPEAT the self-test.

No : REPAIR the circuit in question. CLEAR the DTCs. REPEAT the self-test.

G9 CHECK FOR CORRECT SJB OPERATION
- Disconnect all the SJB connectors.
- Check for:
  - Corrosion
  - Pushed-out pins
- Connect all the SJB 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 RKE transmitters not present need to be reprogrammed. 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.