Window Control Module Communication Circuit Fault
There’s a problem with the communication specifically for the window control module.
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 window control module isn't talking properly with the rest of the computer system, which can prevent your windows from working right or at all.
What the computer is actually seeing
The body control module detects missing or erratic messages from the window control module via the CAN bus. This might occur when it tries to send or receive information about window operation.
What a healthy reading looks like
The window control module should send a constant communication signal on the CAN bus, typically around 2.5V to 3.5V when functioning correctly.
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 the battery voltage; should be between 12.4V to 12.8V. If low, charge/recharge the battery.
- 2Inspect wiring and connectors to the window control module for corrosion or damage. Repair as necessary.
- 3Use a scan tool to check for related codes and clear them; if code returns, continue diagnostics.
- 4Check communication lines with a multimeter; look for expected voltage (2.5V to 3.5V). If not within range, suspect module or wiring issue.
- 5Consider swapping the window control module with a known good unit to see if the code clears. If not, inspect the body control module.
Common causes
- Faulty window control module
- Damaged wiring or connectors in the communication line
- Low battery voltage affecting module operation
- Faulty body control module
- Corroded connectors
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It’s drivable, but if your windows don’t operate properly, it could be a safety concern.
Will this code come back after clearing it?
If the underlying issue isn't fixed, yes, the code is likely to return.
Why does this code appear with other codes?
Faults in communication often affect multiple systems, leading to a cascade of related codes.
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