P1660 Chevrolet Code - Cooling Fan Control Circuit
Quick Answer
The P1660 Chevrolet code indicates a problem with the cooling fan control circuit in the vehicle. Common causes include Faulty cooling fan relay: The relay that controls the cooling fan operation may be defective, preventing the fan from turning on, Damaged cooling fan motor: The cooling fan motor may be faulty or damaged, causing the fan not to operate correctly, Wiring issues: Corroded or damaged wiring connections in the cooling fan control circuit can disrupt the fan's operation. 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
- P1660 Chevrolet indicates Cooling Fan Control Circuit.
- Common causes
- Common causes include Faulty cooling fan relay: The relay that controls the cooling fan operation may be defective, preventing the fan from turning on, Damaged cooling fan motor: The cooling fan motor may be faulty or damaged, causing the fan not to operate correctly, Wiring issues: Corroded or damaged wiring connections in the cooling fan control circuit can disrupt the fan's operation.
- 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 P1660 Chevrolet Description
The P1660 Chevrolet code indicates a problem with the cooling fan control circuit in the vehicle. The cooling fan is a crucial component in the vehicle's cooling system, as it helps regulate the engine temperature by dissipating heat. When this code appears, it means that there is an issue with the control circuit that manages the operation of the cooling fan.
Common Causes of P1660 Chevrolet
- Faulty cooling fan relay: The relay that controls the cooling fan operation may be defective, preventing the fan from turning on.
- Damaged cooling fan motor: The cooling fan motor may be faulty or damaged, causing the fan not to operate correctly.
- Wiring issues: Corroded or damaged wiring connections in the cooling fan control circuit can disrupt the fan's operation.
- ECM malfunction: A problem with the engine control module (ECM) that controls the cooling fan operation can also trigger this code.
- Cooling fan blade obstruction: If the cooling fan blades are obstructed or damaged, it can prevent the fan from spinning properly and cooling the engine.
Symptoms of P1660 Chevrolet
- Engine overheating: The most common symptom associated with this code is the engine overheating due to the cooling fan not turning on when needed.
- Air conditioning not working: The cooling fan also helps cool the air conditioning condenser, so if the fan is not functioning properly, the air conditioning may not work effectively.
- Check engine light: The P1660 code will trigger the check engine light to illuminate on the dashboard as a warning of the cooling fan control circuit issue.
- Poor engine performance: If the engine temperature is not regulated properly, it can lead to poor engine performance and decreased fuel efficiency.
- Burning smell: In severe cases of engine overheating, a burning smell may be noticeable as components start to overheat and potentially fail.
How to Fix P1660 Chevrolet
- Diagnostic testing: Use a scan tool to diagnose the specific cause of the P1660 code and identify which component is malfunctioning.
- Check cooling fan relay: Test the cooling fan relay to determine if it is faulty and replace it if necessary.
- Inspect cooling fan motor: Check the cooling fan motor for any signs of damage or wear, and replace it if needed.
- Check wiring connections: Inspect the wiring connections in the cooling fan control circuit for any corrosion or damage, and repair or replace as needed.
- ECM reprogramming: In some cases, reprogramming the engine control module (ECM) may be necessary to address the cooling fan control circuit issue.
Cost to Fix P1660 Chevrolet
The typical repair costs for a P1660 Chevrolet code related to the cooling fan control circuit can range from $150 to $500, depending on the specific cause of the issue and the cost of parts and labor. This estimate includes the cost of diagnostic testing, replacement of components such as the cooling fan relay or motor, and any necessary repairs to the wiring connections. It's important to keep in mind that labor rates can vary between auto repair shops, so it's advisable to check with local shops for more accurate pricing information.
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