Question about 1988 Toyota Camry

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Electric Fans not operating.

Relay and fuses are fine but still no power to fan. Fans work when run direct from Battery

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  • darrencasey Feb 10, 2009

    To Clarify the problem. The fans are not working. I have tested the relay and fuses and they seem to be working. I have however no been able to get any power output to the relay of fuse. I have been led to believe that on the V6 the switch above the thermostat with two wires is the fan switch which activates when the thermostat opens. I have also not been able to get any power reading there. I have bypassed all the car wiring and connected the fans directly via the battery and the fans work. I hope this clarifies the problem so you may provide assistance.

  • jim beckwith May 11, 2010

    Is there power to the realy and fuse

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What I did on my boy car is replace the thermocouple
It Activate when it get to a certain tempature and the fan comes on
I had to replace it twice because the one was defective.
I hope this works for you

Posted on Feb 10, 2009

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Are the cooling fans coming on ? What relay switch did you replace ?
The BCM will request low speed cooling fan operation from the PCM under the following conditions:
?€¢
Engine coolant temperature exceeds approximately 103?°C (217?°F).


?€¢
When A/C is requested and the ambient temperature is more than 10?°C (50?°F).


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A/C refrigerant pressure exceeds 1310 kPa (190 psi).


?€¢
After the vehicle is shut off if the engine coolant temperature at key-off is more than 117?°C (243?°F) and system voltage is more than 12 volts. The fans will stay on for approximately 3 minutes.


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Is your vehicles check engine light lit ?
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2004 Venture Chevrolet minivan cooling fan circut


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