GM Service Manual Online
For 1990-2009 cars only
Courtesy Lamp Switch: Input showing state of the courtesy lamp as commanded by the BCM.

Driver Door Ajar Sw.: Input from the driver door indicating door status.

Ignition 0: Input to the control module from the ignition switch indicating the Ignition 0 position. Switch closed in ignition switch positions UNLOCK, ACC, ON, and START.

Ignition 1: Input to the control module from the ignition switch indicating the Ignition 1 position. Switch closed in ignition switch positions ON and START.

Ignition Accessory: Input to the control module from the ignition switch indicating the Ignition Accessory position. Switch closed in ignition switch positions ACC and ON.

Left Rear/Rear Cargo Door Ajar Switch: Input from the left rear door/rear cargo showing the state of it.

Passenger Door Ajar Sw.: Input from the passenger door indicating door status.

RAP Relay: Output indicates the RAP Relay state that the control module has commanded.

Right Rear Door Ajar Sw.: Input from the right rear door indicating door status.