P0495 2016 GMC Sierra 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 2016 GMC Sierra 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC P0495 2016 GMC Sierra?
- 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 2016 GMC Sierra?
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 2016 GMC Sierra 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 2016 GMC Sierra Code
What does the OBDII code P0495 mean on a 2016 GMC Sierra?
P0495 indicates that the engine cooling fan is running at a higher speed than expected, which can affect cooling system performance.
What are common symptoms of P0495 in a 2016 GMC Sierra?
Symptoms may include the fan running excessively loud, reduced engine performance, overheating, or abnormal temperature gauge readings.
What causes the P0495 code in a 2016 GMC Sierra?
Common causes include a faulty cooling fan relay, a malfunctioning fan clutch, wiring issues, or a bad engine control module (ECM).
Can I drive my 2016 GMC Sierra with the P0495 code?
Driving with this code is possible but not recommended, as prolonged fan overactivity can strain electrical components and lead to overheating.
How do I diagnose the P0495 code in a 2016 GMC Sierra?
Start by inspecting the fan relay, wiring connections, and fan clutch for signs of damage or wear. Use a scan tool to monitor fan speed commands from the ECM.
Will clearing the P0495 code fix the issue permanently?
No, clearing the code without addressing the underlying problem will only temporarily resolve the issue, and the code is likely to return.
What is the cost to repair a P0495 code in a 2016 GMC Sierra?
Repair costs vary but typically range from $100 to $300 depending on whether the fan relay, fan clutch, or wiring needs replacement.
How can I prevent the P0495 code on my 2016 GMC Sierra?
Regular maintenance, including checking the cooling system components and keeping the ECM software updated, can help prevent this issue.
Can a faulty ECM cause the P0495 code in a 2016 GMC Sierra?
Yes, a malfunctioning ECM can send incorrect signals to the cooling fan, causing it to run at high speed and trigger the P0495 code.
Is the P0495 code related to overheating in a 2016 GMC Sierra?
Potentially, yes. If the fan is overstressed or not functioning properly, it can disrupt the cooling system and lead to overheating.
Discuss the causes and fixes for P0495 2016 GMC Sierra OBDII Code
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