What Does P0692 Mean?
The PCM has detected a high voltage condition on the cooling fan 1 control circuit. This indicates an open circuit or excessive resistance in the fan control wiring, preventing the PCM from properly commanding the cooling fan. The fan may not turn on when needed, leading to engine overheating. The driver may notice the temperature gauge climbing, especially at idle or in traffic.
Safety Warning
A non-functional cooling fan will cause the engine to overheat in low-speed or idle conditions. This can lead to severe engine damage including head gasket failure and cylinder head warping. Avoid driving in stop-and-go traffic. On highway, airflow through the radiator may provide adequate cooling, but the vehicle should be repaired immediately.
Common Causes
30%
Open circuit in the cooling fan control wiring or connector
25%
Failed cooling fan relay with open coil or contacts
20%
Cooling fan motor open winding (burned out motor)
15%
Corroded connector at the fan motor or relay socket
10%
PCM fan control driver circuit open
Diagnostic Steps
1
With the engine at operating temperature, command the cooling fan on via the scan tool and verify if the fan runs; no operation confirms the circuit fault.
2
Check the cooling fan relay by swapping with an identical relay from another circuit; if the fan operates with the swapped relay, the original relay has failed.
3
Measure voltage at the fan motor connector while the fan is commanded on; battery voltage should be present on the power feed. No voltage points to a relay or wiring issue.
4
Check for continuity through the fan motor connector to confirm the motor winding is intact; OL indicates a burned-out motor.
5
Inspect all connectors in the fan circuit for corrosion, especially the large-gauge power connectors near the radiator that are exposed to road spray and salt.
6
Verify the ground path for the fan motor by measuring voltage drop from the fan motor ground to the battery negative; more than 0.3V indicates a ground problem.
Estimated Repair Cost
$75 - $650
Parts + labor, varies by vehicle and location
The PCM has detected a high voltage condition on the cooling fan 1 control circuit. This indicates an open circuit or excessive resistance in the fan control wiring, preventing the PCM from properly commanding the cooling fan. The fan may not turn on when needed, leading to engine overheating. The d...
The most common cause of P0692 (Fan 1 Control Circuit High) is: Open circuit in the cooling fan control wiring or connector
Typical repair costs for P0692 range from $75 to $650, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A non-functional cooling fan will cause the engine to overheat in low-speed or idle conditions. This can lead to severe engine damage including head gasket failure and cylinder head warping. Avoid driving in stop-and-go traffic. On highway, airflow through the radiator may provide adequate cooling, but the vehicle should be repaired immediately.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0692 to identify the root cause.
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Quick Info
Category
Powertrain
System
Engine Cooling System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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