Body Control Module (BCM) Memory Error
Error in the Body Control Module's stored data.
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 BCM is not able to access or write its memory properly, which can mess with things like lights and locks.
What the computer is actually seeing
The BCM detects an internal fault, meaning it cannot store or retrieve its configuration or status correctly.
What a healthy reading looks like
BCM should have no trouble accessing memory; look for voltages around 5V on memory lines, signaling proper operation.
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.
- 1Check battery voltage; it should be between 12.4V and 12.6V with the engine off.
- 2Inspect wiring and connectors to the BCM for damage or corrosion; fix any issues found.
- 3Use a scan tool to check for other related codes; it might help pinpoint the problem.
- 4Clear the code and see if it returns; if it does, look into reprogramming the BCM as a next step.
- 5If reprogramming fails, consider replacing the BCM.
Common causes
- Corrupted software in BCM
- Faulty BCM unit
- Wiring issues to the BCM
- Low battery voltage affecting operations
- Moisture or corrosion in connectors
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, but you might experience issues with lights and locks. Fix soon to avoid further problems.
Will the code come back?
If the underlying issue isn't addressed, especially wiring or a faulty BCM, it's likely to return.
Why does this code appear with others like B2690?
Related codes often indicate multiple issues within the BCM or its environment, indicating a broader problem.
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