High Power Mode

When the ignition is switched to the LOCK position, the BCM enters the high power mode. During the high power mode, the BCM controls the battery guard relay output for 15 minutes, still supplying battery power to the selected components.

Before the 15 minute time period expires, the BCM issues a controlled power shutdown report on the Class 2 data bus indicating that the BCM will switch off the high power output.

The 15-minute time period may restart when one of the following occurs:
^ Any door jamb switch becoming active (a transition from closed to open)
^ The trunk being opened (a transition from closed to open)
^ A RFA-Button report is received (Class 2 or RF message)
^ The key is placed in the ignition switch
^ The interior light switch is activated