P0695 Code - Cooling Fan 3 Control Circuit Low
Quick Answer
The P0695 diagnostic trouble code (DTC) indicates a problem with the cooling fan 3 control circuit being low. Common causes include Faulty cooling fan relay: A defective cooling fan relay can interrupt the voltage signal in the cooling fan 3 control circuit, causing it to be low, Damaged wiring: Frayed or damaged wiring in the cooling fan 3 control circuit can disrupt the flow of voltage, leading to a low voltage signal, Malfunctioning ECM: The ECM is responsible for controlling the cooling fan 3 circuit, and if it malfunctions, it can send incorrect signals to the cooling fan, resulting in a low voltage reading. 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
- P0695 indicates Cooling Fan 3 Control Circuit Low.
- Common causes
- Common causes include Faulty cooling fan relay: A defective cooling fan relay can interrupt the voltage signal in the cooling fan 3 control circuit, causing it to be low, Damaged wiring: Frayed or damaged wiring in the cooling fan 3 control circuit can disrupt the flow of voltage, leading to a low voltage signal, Malfunctioning ECM: The ECM is responsible for controlling the cooling fan 3 circuit, and if it malfunctions, it can send incorrect signals to the cooling fan, resulting in a low voltage reading.
- 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 P0695 Description
The P0695 diagnostic trouble code (DTC) indicates a problem with the cooling fan 3 control circuit being low. This means that the Engine Control Module (ECM) has detected a voltage signal from the cooling fan 3 control circuit that is below the expected range. The cooling fan is a crucial component of the vehicle's cooling system, responsible for regulating the engine temperature by dissipating heat. When the cooling fan 3 control circuit is not functioning properly, it can result in inadequate cooling of the engine, leading to overheating and potential damage to the engine components.
Common Causes of P0695
- Faulty cooling fan relay: A defective cooling fan relay can interrupt the voltage signal in the cooling fan 3 control circuit, causing it to be low.
- Damaged wiring: Frayed or damaged wiring in the cooling fan 3 control circuit can disrupt the flow of voltage, leading to a low voltage signal.
- Malfunctioning ECM: The ECM is responsible for controlling the cooling fan 3 circuit, and if it malfunctions, it can send incorrect signals to the cooling fan, resulting in a low voltage reading.
- Blown fuse: A blown fuse in the cooling fan circuit can also cause a low voltage signal to be detected by the ECM.
- Defective cooling fan motor: A faulty cooling fan motor may not be able to run at the necessary speed, causing the ECM to detect a low voltage signal.
Symptoms of P0695
- Engine overheating: One of the most common symptoms associated with a malfunctioning cooling fan 3 control circuit is engine overheating. If the cooling fan is not running at the appropriate speed, it may not be able to cool the engine efficiently, leading to overheating.
- Poor air conditioning performance: The cooling fan also plays a role in regulating the air conditioning system's performance. If the cooling fan is not functioning properly, it may impact the air conditioning system's ability to cool the interior of the vehicle.
- Check Engine Light: The ECM will detect the issue with the cooling fan 3 control circuit and trigger the Check Engine Light on the dashboard to alert the driver to a problem.
- Reduced fuel efficiency: Engine overheating can cause the vehicle to consume more fuel than usual, resulting in reduced fuel efficiency.
How to Fix P0695
- Diagnose the issue: Use a diagnostic scan tool to retrieve the trouble codes and pinpoint the exact cause of the problem in the cooling fan 3 control circuit.
- Inspect the cooling fan relay: Check the cooling fan relay for any signs of damage or malfunction and replace it if necessary.
- Check the wiring: Inspect the wiring in the cooling fan 3 control circuit for any damage or corrosion, and repair or replace any faulty wiring.
- Test the ECM: Verify the ECM's functionality by testing its ability to send signals to the cooling fan 3 control circuit. Replace the ECM if it is found to be faulty.
- Replace the cooling fan motor: If the cooling fan motor is defective and unable to run at the required speed, replace it to ensure proper cooling system operation.
Cost to Fix P0695
The cost of repairing a cooling fan 3 control circuit low issue can vary depending on the specific cause of the problem and the vehicle's make and model. In general, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, the total repair cost, including parts and labor, could fall between $150 and $500. It is advisable to consult with a trusted mechanic or auto repair shop to get a more accurate estimate based on the specific circumstances of the vehicle. Keep in mind that diagnosis time and labor rates can vary, so it's essential to inquire about those details when seeking a repair quote.
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