P0692 Cooling Fan 1 Control Circuit High

P0692 indicates a high condition in the cooling fan 1 control circuit. Fan 1 control voltage or feedback is above the expected range.

Code details

Generic OBD-II · P0

System: Computer
Code type: Generic (SAE / ISO controlled)
Standard: SAE J2012 / ISO 15031-6

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not ignore a fan stuck on or shorted control circuit because it can hide cooling-system control faults.

Symptoms of P0692

Check-engine light, sometimes with several unrelated codes at once.
Warning lights, a no-start, or intermittent electrical faults.
Communication or module-reset problems on a scan tool.

Common causes of P0692

Low battery voltage, poor grounds, corroded connectors, or blown fuses.
Wiring or network (CAN bus) faults between modules.
A module software/programming issue, or rarely a failed controller.

Useful checks before replacing parts

Review fan 1 command, feedback voltage, relay state, fan module data, coolant temperature, A/C request, freeze-frame data, and charging voltage.
Inspect for short-to-voltage faults, stuck fan relays, open grounds, melted connector terminals, fan module failure, and backfeed from repaired wiring.
Verify whether fan 1 remains energized or the control circuit stays high when the PCM is not commanding fan operation.

Related OBD-II codes

These nearby computer entries can help compare wording and pin down the fault area.