Body Control Module Malfunction
There’s an issue with the body control module (BCM) functioning properly.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The Body Control Module (BCM) controls various electronic systems like lights and door locks. If it malfunctions, these features might not work right or could act erratically.
What the computer is actually seeing
The BCM monitors input signals from various switches and sensors throughout the vehicle. If it detects a malfunction in its own operation or in communications with other modules, it triggers this code.
What a healthy reading looks like
BCM should report normal operation with correct input voltages (typically around 5V for sensors and 12V for power supply) and have no short circuits or open circuits.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Inspect the wiring and connectors at the BCM for damage or corrosion first. Repair any found issues.
- 2Check the battery voltage; should be between 12.4V and 12.7V with engine off. Replace the battery if voltage is low.
- 3Scan for additional codes that may provide more insight; repair any other identified issues.
- 4Test the body control module for communication with a scan tool. If communication fails, consider module replacement.
Common causes
- Faulty Body Control Module
- Poor electrical connections or corroded connectors
- Short circuit or open circuit in wiring harness
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Driving is possible, but you may lose functions like lights or locks, and should fix soon.
Will this code come back after clearing?
If the underlying issue isn't fixed, the code will likely return.
Why is this code paired with other codes?
Other codes may relate to specific functions the BCM controls, indicating multiple failures.
Working a real vehicle right now?
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