P0495 2017 Chevrolet Silverado Code - Fan Speed High
Quick Answer
The cooling fan relay sends a Pulse Width Modulation (PWM) signal of 12 - 14 volts to the cooling fan clutch through the cooling fan clutch solenoid voltage control circuit. Common causes include Faulty Cooling Fan Relay, Cooling Fan Relay harness is open or shorted, Cooling Fan 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
- P0495 2017 Chevrolet Silverado indicates Fan Speed High.
- Common causes
- Common causes include Faulty Cooling Fan Relay, Cooling Fan Relay harness is open or shorted, Cooling Fan 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.
Code P0495 2017 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0495 2017 Chevrolet Silverado?
- Faulty Cooling Fan Relay
- Cooling Fan Relay harness is open or shorted
- Cooling Fan Relay circuit poor electrical connection
- Faulty cooling fan clutch
- Faulty control unit
How to Fix the DTC P0495 2017 Chevrolet Silverado?
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 P0495 2017 Chevrolet Silverado 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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Frequently Asked Questions about P0495 2017 Chevrolet Silverado Code
1. What does the OBDII code P0495 mean on a 2017 Chevrolet Silverado?
P0495 indicates that the engine control module (ECM) has detected that the cooling fan speed is higher than the expected range.
2. What are the common symptoms of the P0495 code in a 2017 Chevrolet Silverado?
Symptoms may include the cooling fan running at high speed constantly, reduced fuel efficiency, increased engine noise, and possibly an illuminated Check Engine Light.
3. What causes the P0495 code to appear on a Chevrolet Silverado?
Common causes include a faulty cooling fan relay, a short circuit in the cooling fan wiring, a malfunctioning cooling fan motor, or an issue with the engine control module.
4. Can I drive my 2017 Chevrolet Silverado with the P0495 code?
While the vehicle may still be drivable, prolonged driving with this code could cause unnecessary wear on the cooling fan and affect engine performance. It's best to address the issue promptly.
5. How do I diagnose the P0495 code on a 2017 Chevrolet Silverado?
Start by checking the cooling fan relay, inspecting the fan motor for damage, and testing the wiring for shorts or open circuits. Use an OBDII scanner to monitor fan speed readings.
6. How do I fix the P0495 code on my Silverado?
Repairs may involve replacing a faulty cooling fan relay, repairing damaged wiring or connectors, replacing the cooling fan motor, or reprogramming the ECM if necessary.
7. What tools are needed to fix the P0495 code on a 2017 Chevrolet Silverado?
You may need an OBDII scanner, a multimeter for electrical testing, and basic hand tools for accessing and replacing components.
8. How much does it cost to repair a P0495 code on a Chevrolet Silverado?
The repair cost can vary, but replacing a cooling fan relay typically costs $50-$150, while a cooling fan motor replacement could cost $200-$500, depending on parts and labor.
9. Can a dirty radiator cause the P0495 code on my Silverado?
While a dirty radiator may not directly trigger the P0495 code, it could contribute to cooling system inefficiencies that cause the fan to work harder than normal.
10. Will clearing the P0495 code with an OBDII scanner fix the problem?
Clearing the code will temporarily remove the Check Engine Light, but if the underlying issue isn’t resolved, the code will likely return.
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