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.
Body Control Module (BCM)
| Refer to COMPONENT INDEX . |
When the ACC with Stop and Go system is Set state, the ABS module transmits an ACC engaged signal to the BCM. The BCM gates and then broadcasts this signal to the relevant modules and systems on the bus that are involved in the ACC operation.
Inputs
- ACC engaged signal from the ABS module
Outputs
- Ignition OFF time to DASM
- Wiper system status to DASM for ambient temperature determination
- Vehicle configuration data to multiple bus nodes
- Outside air temperature value to the DASM
- Battery system voltage to the DASM
- Commanded ignition status to multiple network nodes
- Driver door ajar signal to the DASM and ABS module
- DASM configuration and ACC system type for several network nodes
- ACC engaged signal to multiple network nodes
NO RELATED
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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.