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.
2022 Jeep Compass RedFACTORY OEM SERVICE PROCEDURE
Body Control Module (BCM)
BODY CONTROL MODULE (BCM)
| Refer to COMPONENT INDEX . |
- The BCM is responsible for gating messages across the various bus networks.
- The BCM is responsible for actuating the low side of starter relay once commanded by the PCM high side relay CRANK command.
- The BCM communicates over the Local Interface Network (LIN) bus with the Intelligent Battery Sensor (IBS) information about raw battery current, voltage, and temperature levels
- The BCM is responsible for deactivating the starter motor relay driver.
Factory Service Tools
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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.
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