P0495 Fault Code

Fan Speed High

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0495 fault code indicates that the vehicle's engine control module (ECM) has detected a high-speed operation of the cooling fan. This often means that the fan is running continuously at a high speed due to various possible issues. Some common reasons for this fault may include overheating problems, electrical issues with the fan, or malfunctioning temperature sensors.

What are the symptoms of the P0495 code?

• Continuous high-speed operation of the cooling fan even when the engine is not overheating.
• Possible overheating of the engine if the fan fails completely.
• Check Engine light activated on the dashboard.
• Unusual noises from the fan or engine compartment.

What causes the P0495 code?

• A failing or malfunctioning cooling fan relay.
• Faulty temperature sensors that misreport engine or coolant temperatures.
• Obstructions in the cooling system that prevent proper airflow.
• Low coolant levels leading to overheating.
• Electrical problems such as short circuits in fan wiring.

How to fix P0495?

• Inspect and replace the cooling fan relay if found defective.
• Test and replace any faulty temperature sensors that may be causing false readings.
• Check coolant levels and ensure there are no leaks or obstructions in the cooling system.
• Ensure all electrical connections and wiring related to the cooling system are intact and functioning properly.