Pinpoint Test I: The Battery Saver Does Not Deactivate After Time-Out

Interior Lighting

Pinpoint Test I: The Battery Saver Does Not Deactivate After Time-Out

Refer to Wiring Diagram Set 89, Interior Lamps for schematic and connector information Electrical Diagrams.

Normal Operation

The Body Control Module (BCM) controls the operation of the battery saver relay. When the BCM (Body Control Module) is not in battery saver mode, the BCM (Body Control Module) supplies voltage to the demand lamps.

For detailed information of the battery saver feature, refer to Interior Lighting Interior Lighting.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- BCM (Body Control Module)

PINPOINT TEST I : THE BATTERY SAVER DOES NOT DEACTIVATE AFTER TIME-OUT

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

I1 CHECK THE DEMAND LAMP VOLTAGE SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE

- Ignition OFF.

- Disconnect: BCM (Body Control Module) C2280D.

- Ignition ON.

- Turn any demand (map or vanity mirror) lamp on.

Does the demand lamp turn on?

Yes
REPAIR circuit CLN09 (YE/GN) for a short to voltage. TEST the system for normal operation.

No
GO to I2.

I2 CHECK FOR CORRECT BCM (Body Control Module) OPERATION

- Disconnect all the BCM (Body Control Module) connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the BCM (Body Control Module) 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 BCM (Body Control Module). 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.