[markslc1]

Great thread, but I'm stuck

Issue: Fan only comes on when AC is pushed


Tests done
1) Swapped low speed fan relay with AC relay
2) Swapped high speed fan relay with another from my M3
3) Jumped wires at temp switch. High speed fan works when jumped, low speed does not (what does this indicate?)
4) replaced fuses 16 and 41
5) Jumped plug 85 of low speed relay to ground, fan did not activate. (which is supposed to indicate the resistor on the fan is bad. True?)

Ran the car to temp where guage was past half way, but fans never turn on based on temperature. Need some advise on what the current issue is. is it the resistor? Because it isnt the fuses, fan (works at both speeds), nor the relays. Thanks!