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Thread: Coolant Fans Not Kicking Off

  1. #1
    I survived....I think AirmanPika's Avatar
    Join Date:  Jun 2011

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    Coolant Fans Not Kicking Off

    OK I'll be honest I have not searched crap and am being lazy after years of not posting.

    My poor thing is being weird.

    Right now the cooling fans do not kick on at all. Even if I turn on the AC. I have disconnected the connections to the switch and also jumped them to no effect.

    What am I missing?

  2. #2
    Senior Member
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    What fan fail system are you using?

    Do you have battery voltage on pin 30 of the cooling fan relay? Cooling fan relay is to the right of the fan fail socket.

    Are your ground wires near the radiator ok?

  3. #3
    Senior Member
    Join Date:  May 2011

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    If the fans won't go on when you jump out the "O" switch (and the ignition key is on) check your fuse box and the circuit breaker for the cooling fans. If you have the bypass wire it may have burnt up or if fused they might have blown. If you have a module or the blue fan fail relay it may have failed.
    David Teitelbaum

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