WARNING: This page is about a different car, the 2003 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The various RIM inputs and outputs are described in the corresponding functional areas as indicated on the RIM electrical schematics.

The RIM functions include the following:

BTSI solenoid control
class 2 communication requiring RIM interaction
content theft deterrent
fuel door control
fuel level sensor input
heated seat control
intrusion sensor control
key in ignition chime control
performance shift control
position lamp control
park brake relay control
rear defog relay control
rear foglamp relay control
rear park assist chime control
retained accessory power (RAP) relay control
reverse lamp relay control
reverse switch input w/manual transmission
sunroof speed control
traction mode switch input
transmission shift inhibit
trunk ajar input
trunk entrapment sensor input
trunk release relay control
winter mode switch w/automatic transmission

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Rear Integration Module (RIM)

Use the Manual With the Right Hardware

When to See a Mechanic