Body Control Module Battery Saver Mode

The body control module (BCM) battery saver mode provides vehicle battery protection through reduced current consumption. After a preset delay period of 15 minutes has elapsed, as controlled by the shut down timer, the BCM:

• De-energizes the interior illumination relay, which supplies battery voltage to all interior dome, ignition lock, glove compartment, and rear compartment lamps-This protects the battery when a lamp is mistakenly left on because a door is left open, or a faulty illumination circuit or component is causing excess current consumption.
• De-energizes the power window relay-This action is separate from the normal power window off delay function.
• Disables the BCM inputs normally not required when the ignition is OFF-This reduces the BCM current consumption.

If the BCM is in battery saver mode, all the BCM inputs are re-enabled when:

• The bonnet, rear compartment or any door is opened.
• The BCM receives a valid RF key lock, unlock, or rear compartment signal.
• The ignition switch is turned ON or to the accessories position.
• The doors are unlocked via the driver door microswitch.
• TECH 2 is communicating with the BCM.
• The headlamp switch is cycled from OFF to ON or from ON to OFF.
• The rear compartment release switch, located in the glove box, is operated.
• The alarm is activated.
• The hazard switch is activated.