Trunk Warning Lamp

TRUNK WARNING LAMP
Trunk warning lamp is controlled by the BCM.

When the trunk is opened, ground is supplied
- to BCM terminal 53
- through trunk lamp switch and trunk release solenoid terminal 3
- through trunk lamp switch and trunk release solenoid terminal 4
- to body grounds B7 and B19.

The BCM then signals the combination meter (unified meter control unit) via the CAN lines and ground is provided to the trunk warning lamp.

When power and ground are supplied, the trunk warning lamp illuminates.