Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET1998SUBURBAN K2500, 7.4 J, PART TIMEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 509 (BODY CONTROL SYSTEM)DESCRIPTION AND OPERATIONBODY CONTROL SYSTEM DESCRIPTION AND OPERATIONREAR INTEGRATION MODULE (RIM)
1998 Chevrolet Suburban K2500, 7.4 J, Part Time
Rear Integration Module (RIM)
1998 Chevrolet Suburban K2500, 7.4 J, Part TimeSECTION Rear Integration Module (RIM)
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora and 2001 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
The various RIM input and output circuits are described in the corresponding functional areas as indicated on the RIM electrical schematics.
The RIM functions include the following:
- Automatic level control.
- CIGAR relay control.
- Fuel door release relay control.
- Heated seat controls.
- Heating, ventilation, and air conditioning (HVAC) blower control.
- Inadvertent power relay control.
- Park brake relay controls.
- Rear defogger relay control.
- Rear foglamp relay control.
- Retained accessory power (RAP) control.
- Reverse lamp relay control.
- Trunk ajar switch signal.
- Trunk release relay control.
- Various controls for the interior lamps.
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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.