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the fans are operated by means of a series of relays which are turned on or off by the engine computer. the engine coolant temp sensor that sends its signal to the engine computer is what indirectly turns on the fans. if there is no check engine light for a coolant temp. sensor code, the problem lies in the fans themselves, or the relays and related wiring.

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โˆ™ 2005-12-07 01:19:41
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Q: Where is the coolant sensor located for the radiator fans on a 1998 Rav4?
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