OBD-II Generic Error Code P0695: How to Fix It

Medium 1-2 hours Medium Severity Verified June 2026
Error Code
P0695
Brand
OBD-II Generic
Product Type
automotive
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
1-2 hours
Error code P0695 indicates that the Engine Control Module (ECM) has detected a low voltage condition in the control circuit of the third cooling fan (Fan 3). This can cause the fan to not operate properly, leading to potential engine overheating. The fix typically involves inspecting the fan, wiring, and relay.
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Tools You'll Need

How to Fix Error Code P0695

  1. Check for Technical Service Bulletins (TSBs)

  2. Inspect Fan 3 and Connector

    Ensure the engine is off and the key is removed before inspecting.
  3. Test the Fan Motor

  4. Check Fuse and Relay

  5. Inspect Wiring and Grounds

  6. Test ECM Output

    Handling the ECM requires static precautions; consider professional help.

Parts You May Need

Cooling Fan Assembly (Fan 3)
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Cooling Fan Relay
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Cooling Fan Fuse
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Cooling Fan Assembly (Fan 3)
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Cooling Fan Relay
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Cooling Fan Fuse
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Cooling Fan Assembly (Fan 3)
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Cooling Fan Relay
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Cooling Fan Fuse
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Cooling Fan Assembly (Fan 3)
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Cooling Fan Relay
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Cooling Fan Fuse
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When to Call a Professional

If you have inspected all wiring, fuses, relays, and the fan motor, and the error persists, the ECM may be faulty. ECM replacement or reprogramming typically requires a professional mechanic or dealership.

Frequently Asked Questions

What does error code P0695 mean?
P0695 indicates that the engine control module (ECM) has detected a low voltage condition in the control circuit of the cooling fan designated as Fan 3. This can prevent the fan from operating correctly, risking engine overheating.
Can I drive my car with error code P0695?
It is not recommended to drive the vehicle with this code active, especially in stop-and-go traffic or hot conditions, as the cooling fan may not function properly. Continued driving could lead to engine overheating and damage.
What causes code P0695?
Common causes include a faulty fan motor, blown fuse, defective relay, damaged wiring or connectors, poor ground connection, or a faulty ECM.
Is error code P0695 serious?
Yes, it is a medium-severity code. While the vehicle may still operate, the cooling fan issue can lead to overheating, which can cause costly engine damage if ignored.
How do I fix error code P0695?
Start by inspecting the fan, fuse, relay, and wiring. Test the fan motor and relay with a multimeter. Replace any faulty components. If the problem persists, consult a professional to diagnose the ECM.