Just picked up a 91 318is
The previous owner had done the Volvo 940 electric fan swap on the car but the low speed does not work. Also, so we’re on the same page, the auxiliary fan circuit is being used.
When I jumped the low speed to ground I could hear the relay clicking over but there was no fan operation. I read that the high speed is on the same circuit as the low speed so WITH THE LOW SPEED STILL JUMPED I then jumped the high speed and the fan turned on.
So I’m thinking the problem lies somewhere on the low speed circuit AFTER the relay? Is there a built in low speed resistor on these Volvo fans that the high speed bypasses?
What do you guys think?
The previous owner had done the Volvo 940 electric fan swap on the car but the low speed does not work. Also, so we’re on the same page, the auxiliary fan circuit is being used.
When I jumped the low speed to ground I could hear the relay clicking over but there was no fan operation. I read that the high speed is on the same circuit as the low speed so WITH THE LOW SPEED STILL JUMPED I then jumped the high speed and the fan turned on.
So I’m thinking the problem lies somewhere on the low speed circuit AFTER the relay? Is there a built in low speed resistor on these Volvo fans that the high speed bypasses?
What do you guys think?
