FilS004 Posted November 18, 2020 Share Posted November 18, 2020 Hi all, can anyone explain to me (looking at the wiring diagram), how fan relay 2 is accuated? Is it accuated once the ign is turned on (which comes from page 56), so going through the 30 A fuse? My problem is that I am not getting any power from fan (R2) relay 1 pin 1. I have power to (E5) engine coolant switch pin 2, (R3) fan relay 2 pin 1&2 and (R2) fan relay 1 pin 4. radfan diag.pdf Quote Link to comment Share on other sites More sharing options...
Shane Posted November 21, 2020 Share Posted November 21, 2020 I have a feeling I have been caught out with this before, but so long ago I cant remember exactly why or the events leading to it. But what I can remember, is that relay No.1 relies on the AC and coolant sensor being NC until the fan is required, this is done as a sort of failsafe, so if the sensors fail or become disconnected the fan kicks in as a safety precaution. Looking at the diagram relay 2 is energised when ignition is on. Quote Link to comment Share on other sites More sharing options...
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