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When you say hard wired you mean putting your own live feed down to it ?
Has the car got Air/Con does the fan work when this is switched on ?
Does anything happen when you bridge the cooling fan switch ??
No dont mean at the relay i mean the thermo switch you replaced unplug it then stick a wire between the 2 terminals with the ignition switch on then the fans should come on
yes thats what its doing,
1 thing where is the switch you replaced is it on the bottom hoes or the top hose ?
Right you are at the right switch by the sounds of it,
So remove the plug from that switch on the thermostat housing and get a small bit of wire with bare both ends and push them im the end of the plug, so you are making a complete circuit. Then turn the key on and fans should cut in.
let me know what happens
that is the the temp sensor for the ECU no need to play with that just tell it what to temp is.
If the fans dont come on then if you are able check to see if you getting a live feed to that plug on 1 of the wires
tested the radiator fan switch plug as suggested. Wired directly from the plug to the radiator fan. The radiator fan (passanger side fan) did not come on but the AC fan did. Tested the radiator fan motor again, it worked. plugged the radiator fan switch up again and still nothing at operating temp. What is next????