Driver Door Module - Communication Issue
There’s a problem with communication between the driver door module and the vehicle's control modules.
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 driver door module controls various functions like window and lock operations. If it can't communicate properly, those functions may fail.
What the computer is actually seeing
The vehicle's computer expects regular messages from the driver door module (DPM) to confirm its operation. If it doesn't receive those signals within a set time (typically less than 100 milliseconds), it triggers the fault code.
What a healthy reading looks like
The DPM should send a readout for door switch states, window positions, and lock statuses within 50-100 milliseconds. If voltages range less than 5V or more than 12V in inactive states, check the connections.
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.
- 11. Check the vehicle’s battery voltage. It should be between 12.4V and 12.9V with the engine off. If low, recharge or replace the battery.
- 22. Inspect the wiring and connectors between the driver door module and the body control module (BCM) for damage or corrosion. Ensure connections are tight and clean.
- 33. Use a scan tool to check for additional codes in the BCM related to door functions. If other codes are present, investigate those first.
- 44. Disconnect the driver door module, then use a multimeter to check for continuity on the power and ground circuits. Replace any damaged wires found during this test.
- 55. Reconnect the driver door module. Test if the window and lock functions operate correctly. If they do, clear the fault code and test drive the vehicle to see if the code returns.
Common causes
- Faulty driver door module
- Wiring issues between the module and BCM
- Poor connections or corroded terminals
- Battery voltage drop affecting the module operation
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it's drivable, but some door functions may not work. Fix soon to avoid further issues.
Will the problem come back after I reset the code?
If the underlying issue isn't addressed, the code is likely to return.
Why does this code appear with other codes?
Multiple codes can occur if there are common wiring issues or if the modules are linked in their functions.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →