Antenna Circuit Malfunction
There’s an issue with the antenna circuit related to the vehicle's communication or security system.
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 vehicle's computer can't properly communicate with the antenna used for electronics, affecting functions like the alarm or remote start.
What the computer is actually seeing
The computer detects an abnormal voltage level in the antenna circuit, typically less than 5V or more than 12V when it should be within the standard range.
What a healthy reading looks like
Antenna circuit voltage should be between 5V to 12V during operation; resistances on connectors should be below 5 ohms.
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. Inspect the antenna connector for corrosion or damage. If it's damaged, repair/replace the connector. Decision Point: Is the connector in good condition? Yes - Go to step 2. No - Repair connector.
Common causes
- Loose or corroded connector at the antenna
- Damaged antenna wiring
- Faulty antenna or receiver unit
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, the vehicle can be driven, but some electronic functions may not operate correctly.
Will this code come back after clearing?
It may return if the underlying issue isn't fixed.
Why does this code pair with other antenna-related codes?
They often share common wiring and components, indicating a broader issue.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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