P1473 Mercury Code - Fan Secondary High With Fans Off
Quick Answer
The P1473 diagnostic trouble code for Mercury vehicles indicates that the fan secondary is operating at a higher speed than expected when the fans are supposed to be off. Common causes include Faulty fan control module, Defective fan relay, Wiring issues or shorts. 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
- P1473 Mercury indicates Fan Secondary High With Fans Off.
- Common causes
- Common causes include Faulty fan control module, Defective fan relay, Wiring issues or shorts.
- 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 P1473 Mercury Description
The P1473 diagnostic trouble code for Mercury vehicles indicates that the fan secondary is operating at a higher speed than expected when the fans are supposed to be off. This issue can affect the vehicle's performance by causing the engine to overheat or run at higher temperatures than normal. The fan secondary is responsible for assisting in cooling the engine when the primary fan is not enough to maintain optimal operating temperatures. When the fan secondary operates at a high speed when it should be off, it can lead to excessive cooling and potential damage to the engine components.
Common Causes of P1473 Mercury
- Faulty fan control module
- Defective fan relay
- Wiring issues or shorts
- Malfunctioning coolant temperature sensor
- Software glitches in the engine control module
Symptoms of P1473 Mercury
- Engine overheating
- Increased coolant temperature gauge readings
- Loud fan noise when the engine is off
- Reduced fuel efficiency
- Check engine light illuminated on the dashboard
How to Fix P1473 Mercury
- Diagnose the issue by using a scan tool to read the trouble code and check for any underlying issues with the cooling system components.
- Inspect the fan control module, relay, and wiring for any signs of damage or corrosion. Replace any faulty components.
- Test the coolant temperature sensor to ensure it is providing accurate readings. Replace if necessary.
- Clear the trouble code from the vehicle's computer system and reset the engine control module to ensure the issue has been resolved.
- Test drive the vehicle to verify that the fan secondary is operating correctly and that the engine temperature remains within normal limits.
Cost to Fix P1473 Mercury
The cost of repairing a P1473 code on a Mercury vehicle can vary depending on the specific cause of the issue and the parts needed for the repair. On average, the repair cost can range from $150 to $500, including parts and labor. Keep in mind that labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. It's recommended to consult with a certified mechanic or dealership for a more accurate estimate based on your vehicle's make and model.
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