Gazman 0 Posted October 30, 2006 Replaced my radiator fan after the old one seized. Also replaced the fuse which had blown (the one in the engine bay). Unfortunately the new fan is not coming on. I suspect that this is due to some wiring rather than the fan itself, so I would like to check the voltages at the connector that plugs directly into the back of the fan. Can anyone tell me what voltages to expect on which connector pins (and when)? Any help much appreciated. Quote Share this post Link to post Share on other sites
Crasher 3 Posted October 30, 2006 You will get no voltage at the fan plug without the coolant temp senders commanding the control box to send out a voltage, either the sender on the head or the one on the radiator. The red/white wire is for speed one and the red/black for speed two. You need to get a copy of the wiring diagram for the fan control system but it is common for the fan control relay unit to play up, even catch fire. Quote Share this post Link to post Share on other sites
