AutoCodes – Generic – P0692

P0692 Code - Cooling Fan 1 Control Circuit High

Quick Answer

The engine cooling fan system is composed of electric cooling fan and a cooling fan control module. Common causes include Faulty Cooling Fan 1 Relay, Cooling Fan 1 Relay harness is open or shorted, Cooling Fan 1 Relay circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0692 indicates Cooling Fan 1 Control Circuit High.
Common causes
Common causes include Faulty Cooling Fan 1 Relay, Cooling Fan 1 Relay harness is open or shorted, Cooling Fan 1 Relay circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 25,750
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jul 19, 2022
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Code P0692 Description

The engine cooling fan system is composed of electric cooling fan and a cooling fan control module. The Engine Control Module (ECM) controls the fan speed by sending a Pulse Width Modulated (PWM) signal to the cooling fan control module. The cooling fan control module varies the voltage drop across the cooling fan motor in relation to the pulse width modulated signal, allowing the cooling fan to operate at variable speeds. The cooling fan speed is affected by many different operating conditions and the ECM will adjust the duty cycle based on cooling system requirements.
Generally, the ECM will operate the cooling fan at specific percentages but, may scale the percentages either higher or lower in response to generator demand. The percentages at which the cooling fan operates may vary between vehicle lines and engines.
The cooling fan control module is thermally protected to prevent module damage in the case of a short circuit condition in the cooling fan motor. The scan tool output control is only capable of operating the cooling fan in the speed percentages allowed by the ECM. When multiple cooling fan speed requests are received, the ECM operates the fan at the highest of the speed requests.
The Diagnostic Trouble Code (DTC) will be set when the commanded state of the driver and the actual state of the control circuit do not match for greater than 5 s.

**Cooling Fan design may vary
OBDII Code P0692 - Cooling Fan 1 Control Circuit High - AutoCodes.com
P0692 Code - Cooling Fan 1 Control Circuit High

What are the Possible Causes of the DTC P0692?

  • Faulty Cooling Fan 1 Relay
  • Cooling Fan 1 Relay harness is open or shorted
  • Cooling Fan 1 Relay circuit poor electrical connection
  • Faulty Cooling Fan 1
  • Faulty Cooling Fan Control Module
  • Faulty Engine Control Module (ECM)

How to Fix the DTC P0692?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0692 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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