What it means
Cooling Fan 1 Control Circuit High: the control-circuit voltage is above the expected range. Reduced cooling-fan control can let the engine or A/C condenser overheat.
At a glance
- Usually lights the check-engine light
How it works
The engine controller monitors the control circuit for Cooling Fan 1 and checks whether its voltage is within the expected range. P0692 sets when that voltage is too high, which can result from a control wire shorted to power or a fault in the Fan 1 relay circuit.
Common causes
Most likely first.
- Fan relay defective
- Wiring shorted to power
- Connector pins corroded - high contact resistance
Symptoms
- Cooling fan may not operate as commanded
- Engine or A/C condenser may overheat
How to diagnose it
- Record freeze-frame data and review coolant temperature, A/C request, and Fan 1 command data to determine the operating condition when the code set.
- Inspect Fan 1 wiring, connectors, relay socket, and the control wire for pinched insulation, corrosion, or contact with a power feed.
- Command Fan 1 with a scan tool if supported and note whether the fan responds as expected or the circuit fault returns.
- Check the Fan 1 relay and its control connections using the vehicle wiring diagram and the manufacturer's procedure.
- Test the control wire for an unintended connection to supply voltage and confirm controller output only by the specified method.
Common fixes
- Clean and secure corroded Fan 1 connector or relay-socket terminals.
- Repair wiring pinched against a power feed.
- Repair a Fan 1 control wire shorted to supply.
- Replace the Fan 1 relay if it fails the specified test.
Can I keep driving?
Do not continue driving if the engine overheats or the temperature gauge climbs; turn off the A/C and stop safely. A cooling fault can lead to engine damage if overheating continues.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.