The radiator fan has three wires. I know it is a two speed fan. If the fan is going to run on high, which of the three wires is negative and which are positive?
have the same problem?
Thursday, May 19th, 2016 AT 2:10 PM
The gray wire is high speed and the black wire is ground, but do not just go trying to hook it up to a toggle switch or something like that. The fan pulls way too much current for that. It has to run through a relay on a fused circuit so if you are not an electrical expert I suggest you have it diagnosed professionally.