In-vehicle Audio/Video System Control Module - Power Circuit Failure
The audio/video control module is not receiving power.
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 audio system isn't getting the power it needs to function, which could be due to a blown fuse, bad connection, or a faulty module.
What the computer is actually seeing
The control module detects no voltage (0V) where it expects to see at least 12V when the key is in the 'on' position.
What a healthy reading looks like
12V-14V at the power terminal of the audio control module with the ignition on.
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 fuse for the audio system (refer to the fuse panel diagram). If it's blown, replace it and retest the system.
- 22. If the fuse is good, check the voltage at the audio/video control module's power terminal using a multimeter. You should see between 12V to 14V with the ignition on. If no voltage, proceed to step 3.
- 33. Inspect the wiring and connectors leading to the audio/video control module for damage or corrosion. Repair any issues found.
- 44. If voltage is present and connections are good, replace the audio/video control module.
Common causes
- Blown fuse for the audio system
- Corroded or loose connectors
- Faulty audio/video control module
- Wiring harness damage
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
Yes, it's generally safe to drive, but the audio system will not function until the issue is resolved.
Will this code come back after clearing?
If the underlying issue is not fixed, the code is likely to return.
Why might this code appear alongside B1518 or U0121?
These codes may indicate other related issues in the audio/video or communication systems that could impact module function.
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