Pinpoint Test N: The Smart Unlock Does Not Operate Correctly

Handles, Locks, Latches and Entry Systems - Integrated Keyhead Transmitter (IKT)

Pinpoint Test N: The Smart Unlock Does Not Operate Correctly

Normal Operation

The Smart Junction Box (SJB) commands all doors to unlock based on input from the key-in-ignition switch and door ajar signal. The smart unlock feature prevents the doors from electronically locking with the key in the ignition lock cylinder. When the SJB receives a lock command from a door lock control switch, and the key is in the ignition lock cylinder with one of the front doors open, the SJB commands the doors to unlock. To override the smart unlock feature and intentionally lock the doors with the key in the ignition, close all doors and lock the vehicle using the keyless entry keypad or press the lock button on an Integrated Keyhead Transmitter (IKT), or lock the doors manually with the lock rod before closing the door.

The vehicle can still be locked with the key in the ignition, by using the manual lock rod, a key in the door lock cylinder, the keyless entry keypad, or the LOCK button on an Integrated Keyhead Transmitter (IKT).

This pinpoint test is intended to diagnose the following:

- LH front door ajar switch
- RH front door ajar switch
- Key-in-ignition switch
- SJB



PINPOINT TEST N: THE SMART UNLOCK DOES NOT OPERATE CORRECTLY

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N1 CHECK THE COURTESY LAMP OPERATION


- Open and close each door while checking the courtesy lamp operation.
- Do the courtesy lamps operate correctly?

Yes
GO to N2.

No
REFER to Lighting and Horns.

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N2 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 N3.

No
REFER to Instrument Panel, Gauges and Warning Indicators.

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N3 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 Body Control Systems. 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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