Pinpoint Test Q: The Smart Unlock Does Not Operate Correctly

Handles, Locks, Latches and Entry Systems

Pinpoint Test Q: 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 feature helps prevent the keys from being locked in the vehicle by unlocking the doors if the key is in the ignition and either front door is ajar.

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, 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 (Smart Junction Box)

PINPOINT TEST Q : THE SMART UNLOCK DOES NOT OPERATE CORRECTLY

Q1 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 Q2.

No
REFER to Lighting and Horns.

Q2 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 Q3.

No
REFER to Instrument Panel, Gauges and Warning Indicators.

Q3 CHECK FOR CORRECT SJB (Smart Junction Box) OPERATION

- Disconnect all the SJB (Smart Junction Box) connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the SJB (Smart Junction Box) 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 (Smart Junction Box). 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.