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Originally Posted by walfreyydo
Only true on early model cars according to Clarks - but maybe thats for USA models only?
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My NZ-market RHD '86 was no A/C from the factory and exactly the same single fan set up as the OP has described about his 944S. It threw me when I bought a 3 pin thermo switch for a late 944 and realised I couldn't use it.
Non-A/C 944 all seem to have single fans, US cars all seem to be spec'ed with A/C so always had 2 fans...?
Our single fan 944's also have a different cooling fan relay so those SS ones that F9T sell for example are no good to us.
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Below are internal pictures of the new F9T Solid-State Cooling Fan Relay next to various original mechanical cooling fan relays. As you can see, the “Cooling Fan Relay” actually has several “internal relays.” Each fan has a dedicated relay for low-speed and high-speed operation. However, the earlier versions have a fifth internal “control” relay that was later replaced with numerous electronic components. The factory went through several updates to the dual fan relay with the latest version being “04.” Obviously, the F9T relay takes a more modern approach. The mechanical relays are replaced with four independent “smart” power switches. These power switches are designed to drive inductive loads such as automotive cooling fans or smaller starter motors.
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This is mine
