Pinpoint Test M: The Autolock Does Not Operate Correctly

Handles, Locks, Latches and Entry Systems - Without Intelligent Access (IA)

Pinpoint Test M: The Autolock Does Not Operate Correctly

Normal Operation

The Body Control Module (BCM) energizes the lock relay based on input from the ajar switches, the ignition switch, the Transmission Range (TR) sensor and the vehicle speed signal. The BCM (Body Control Module) locks the doors when the following conditions are met:

- all the doors are closed

- the ignition switch is in the ON position

- the vehicle is shifted into any gear putting the vehicle in motion, and

- the vehicle attains a speed greater than 20 km/h (12 mph)

This pinpoint test is intended to diagnose the following:

- Programming

- Door ajar switch input

- Vehicle speed signal message

PINPOINT TEST M : THE AUTOLOCK DOES NOT OPERATE CORRECTLY

M1 CHECK THE COURTESY LAMP OPERATION

- Open and close the doors while checking the courtesy lamp operation.

Do the courtesy lamps operate correctly?

Yes
GO to M2.

No
REFER to Lighting and Horns.

M2 CHECK THE BCM (Body Control Module) IGN_SW_STATE PID

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: BCM (Body Control Module) DataLogger.

- Monitor the BCM (Body Control Module) PID (IGN_SW_STATE).

Does the PID indicate RUN?

Yes
GO to M3.

No
REFER to Steering Column to continue diagnosis of the ignition switch.

M3 CHECK THE VEHICLE SPEED OPERATION

- Check the operation of the speedometer.

Does the speedometer operate correctly?

Yes
ENABLE the autolock feature. REFER to Autolock and Auto-Unlock Programming .

No
REFER to Instrument Panel, Gauges and Warning Indicators.