Pinpoint Test N: The Smart Unlock Does Not Operate Correctly

Handles, Locks, Latches and Entry Systems

Pinpoint Tests

Pinpoint Test N: The Smart Unlock Does Not Operate Correctly

Normal Operation

The Smart Junction Box (SJB) automatically unlocks all the doors after the doors are locked with a door lock control switch if the key is in the ignition lock cylinder and one of the front doors is ajar.

The vehicle can still be locked by locking the doors with the push button rods, the door lock cylinder or a Remote Keyless Entry (RKE) command from an Integrated Keyhead Transmitter (IKT) or the keyless entry keypad.

This pinpoint test is intended to diagnose the following:

- Key-in-ignition switch
- Door ajar switch input
- SJB

PINPOINT TEST N: THE SMART UNLOCK DOES NOT OPERATE CORRECTLY

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N1 CHECK THE DOOR LOCK OPERATION


- Check the operation of the door locks from the driver door lock control switch.
- Do all the doors lock and unlock?

Yes
GO to N2.

No
GO to Symptom Chart - Electrical. Symptom Related Diagnostic Procedures

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N2 CHECK THE COURTESY LAMP OPERATION


- Open and close the left and right front doors while checking the courtesy lamp operation.
- Do the courtesy lamps operate correctly?

Yes
GO to N3.

No
REFER to Interior Lighting Testing and Inspection.

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N3 CHECK THE KEY-IN-IGNITION CHIME


- Insert the key in the ignition switch.
- Open the driver door.
- Does the key-in-ignition chime operate correctly?

Yes
GO to N4.

No
REFER to Instrumentation, Message Center, and Warning Chimes Testing and Inspection.

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N4 CHECK FOR CORRECT SJB OPERATION


- Disconnect all the SJB connectors.
- Check for:
- corrosion
- damaged pins
- 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 Modules Service and Repair. 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.

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