P0495 OBD-II Trouble Code: Fan Speed High

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0495 code

P0495 is a diagnostic trouble code (DTC) for "Fan Speed High". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P0495 DIAGNOSTIC Get a fair and transparent estimate upfront

Diagnostic Trouble Code (DTC): P0495

P0495 code definition

The P0495 code is stored when the PCM has detected a voltage reading that is too high from the electric cooling fan control circuit.

What the P0495 code means

In order ensure that the engine temperature remains at the right level, and that the air conditioner system works when turned on, the PCM gathers data from the cooling fan control system circuit. If this data is more than 10% higher than the voltage specified by the manufacturer for the current driving conditions, then the PCM will store the P0495 code.

What causes the P0495 code?

The most common causes behind the P0495 code include a bad cooling fan motor, and a faulty cooling fan relay; however, there are some less-common causes that should be considered, such as:

What are the symptoms of the P0495 code?

The Check Engine Light will be illuminated, and may be the only observable symptom. Some engines may overheat, and the air conditioner may not work as efficiently as it typically does.

How does a mechanic diagnose the P0495 code?

After verifying the code with an OBD-II scanner, the mechanic should begin with a visual inspection of all wiring and other electrical components, as well as vacuum lines and hoses. Any simple electrical issues, such as loose or shorted elements, should be repaired or replaced as necessary.

After this, or any repair, it is important to clear the code from the PCM and retest the system. If the code returns, then the mechanic should move on to manually testing the voltage of the primary cooling fan motor. The next step is to check the voltage readings of the engine cooling fan relay. If either of these parts are not meeting the manufacturer’s specifications, they must be replaced.

Common mistakes when diagnosing the P0495 code

The most common mistake when diagnosing and repairing this code is to replace a cooling fan motor without performing a thorough diagnostic procedure of the entire system. One part that is often recalled is the cooling fan relay and may therefore be the true issue. It is important to diagnose all possible problems before replacing any major parts.

How serious is the P0495 code?

If the P0495 code is stored in the PCM, it represents a serious issue that should be repaired immediately. Although no major symptoms are usually observed, the inability to measure and control the cooling system will eventually lead to larger and more expensive repairs. Vehicle owners should have this code addressed as soon as possible.

What repairs can fix the P0495 code?

There are a few ways that a technician can address a P0495 code detection. They include:

Need help with a P0495 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
Temperature
Cooling System
Check Engine Light

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P0495 code.

SCHEDULE P0495 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(6,144)

Rating Summary
5,685
221
51
35
152
5,685
221
51
35
152

Chris

11 years of experience
13 reviews
Chris
11 years of experience
Ford F-150 - Check Engine Light is on - North Salt Lake, Utah
We were having problems with our check engine light, and Chris was exceptionally thorough until he found the problem and could help resolve the situation. We appreciate having someone who cares enough to get the job done right, not just done. We will definitely use Chris' services in the future. Thanks Chris.

Leng

21 years of experience
2 reviews
Leng
21 years of experience
Mazda MPV - Check Engine Light is on - Seattle, Washington
Leng arrived on time and explained the issue that my van is having. I will make a follow up appointment for the fix. Friendly, easy to talk to, and professional - thank you very much!

Okela

13 years of experience
11 reviews
Okela
13 years of experience
Land Rover LR4 - Check Engine Light is on - Brooklyn, New York
Okela was incredible! He is super thorough and took time to walk us through the issues with our LR4. Couldn’t recommend more! Thank you Okela!!

Robert

37 years of experience
188 reviews
Robert
37 years of experience
Land Rover LR2 - Check Engine Light is on - Atlanta, Georgia
Robert arrived on time. Did a diagnostic check quickly. He was friendly, and gave great service. He knows how to work on a Land Rover.


More related articles

Related questions

Code P0340

The P0340 problem code references a camshaft position sensor malfunction. The ability to restart the engine suggests it is failing versus has failed. There was an issue with this engine with the cam chain tensioner - which also affects cam...

p0117 code and engine heating to 75% of temp gauge (but no further)

You will have to scan the computer when the engine is cold and look at the data to compare the ECT and the IAT. This is the inlet air temperature sensor and the engine coolant temperature sensor. Both sensors will...

I believe one of my ignition coils is bad, how can I test to see which one is bad?

The only way to determine exactly which ignition coil is damaged is to have a professional mechanic complete a diagnostic scan and download all error codes. The OBD-II error codes will pinpoint the source of engine issues. Having a mechanic...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com