P0692
Fan 1 Control Circuit High
Engine cooling fan control
Generic OBD-II
High
What it means
P0692 means the engine computer detected an abnormally high voltage on the cooling fan 1 control circuit — typically a short to voltage, an open, or a failed relay. The concern is a fan that won't run when commanded, which can let the engine overheat at idle or in slow traffic.
High
Can I keep driving? Watch the temperature gauge — if the cooling fan isn't running the engine can overheat in traffic. Avoid low-speed driving until it's fixed.
Common symptoms
What you'll notice
- Engine overheating at idle or in slow traffic
- Cooling fan not running when it should (or running constantly)
- Check-engine light on
- Weak air-conditioning cooling at low speeds
Common causes
Most likely first
- Failed cooling fan 1 relay or control moduleLikely
- Short-to-voltage or open in the fan control wiringCommon
- Corroded or loose fan connectorCommon
- Failed fan motorLess often
- Failed ECM (least common)Less often
How to diagnose & fix
Work through it in order
- Scan for codes and watch whether fan 1 commands on when the engine gets hot or the A/C is on.
- Check the fan relay and its fuse — swap in a known-good relay to test.
- Inspect the fan control wiring and connector for a short to voltage or an open.
- Test the fan motor directly with power and ground.
- Replace the relay, wiring, or fan as diagnosed. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0692?+
Only with caution. If the fan isn't running, the engine can overheat at idle or in traffic. Highway speeds get some airflow, but don't ignore the temperature gauge.
Can I just clear P0692?+
It returns until the fan control circuit is repaired — and a non-working fan risks overheating damage, so fix it rather than clearing it.
Related codes
Often seen with P0692
Read & clear P0692 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX