High Beam Indicator Circuit Malfunction
There’s a problem with the high beam indicator light circuit.
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 computer isn't getting the right signal from the high beam indicator light, which is supposed to turn on when you activate the high beams. It may mean the bulb isn't working or there's an issue with the wires.
What the computer is actually seeing
The Body Control Module (BCM) expects to see a voltage signal close to 12V when the high beams are activated. If it sees less than 9V or no signal when the lights are on, it triggers this fault code.
What a healthy reading looks like
12V signal from the high beam indicator circuit when high beams are on; 0V when they're off.
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 high beam bulbs for proper operation; replace if burnt out.
- 2Inspect the wiring and connectors to the high beam bulbs for damage or corrosion.
- 3Verify the ground connections for the BCM and high beam circuit are secure and not corroded.
- 4Use a multimeter to check for voltage at the high beam indicator circuit while activating the high beams.
Common causes
- Burnt out high beam bulb
- Damaged wiring or connectors in the high beam circuit
- Faulty Body Control Module (BCM)
- Poor ground connection for the BCM or high beam circuit
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
Yes, but you won't know if your high beams are working unless you check them manually.
Will this code return after I fix it?
If you properly address the underlying issue, it should not return.
Why does this code appear with other codes?
It's common for multiple codes to show up when there's a shared issue with the electrical system.
Working a real vehicle right now?
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