Heater Resistance Circuit Fault
Indicates a fault in the HVAC seat heater 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 seat heater in the car isn't working because the computer has detected an issue with the wiring or the heater element itself.
What the computer is actually seeing
The vehicle's computer is monitoring the resistance in the seat heater circuit. It expects a resistance reading between 5 to 20 ohms under normal conditions. A reading outside this range signals a problem.
What a healthy reading looks like
Resistance should be between 5 to 20 ohms for proper heater function.
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 wiring and connector to the seat heater for visible damage or corrosion. Decision: If damaged, repair or replace, then retest.
- 22. Disconnect the seat heater connector and measure the resistance across the heater element. Expected: 5-20 ohms. Decision: If outside this range, replace the heater element; if normal, continue testing.
- 33. Check for continuity between the seat heater connector and the vehicle computer. Expected: Should show continuity. Decision: If no continuity, check and repair the wiring; if continuity is good, further diagnose the control module.
Common causes
- Damaged wiring in the seat heater circuit
- Faulty seat heater element
- Open or short circuit in the resistor
- Bad connector or loose terminals
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
Yes, it is safe to drive, but the seat heater will not function until repaired.
Will this code return if I clear it?
It may return if the underlying problem isn't fixed.
Why does this code only appear during certain times?
The seat heater may only be monitored during specific conditions, like when attempting to activate it.
Working a real vehicle right now?
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