Buckshot G/N
Well-Known Member
- Joined
- Nov 2, 2011
Heater (and a/c) fan motor...Anyone know the correct GM name for this where screw driver is pointed. Thanks,
Actually after looking at the diagram again it can't run at all with the blower relay unplugged.
Only way it could run is if the purple wire which is the + of the blower motor was somehow shorted to either the fat red always on +12 wire, or the orange or dark blue wires with other fuse ign. switch, blower switch issues.
You sure you unplugged it and it ran?
The purple wire off the blower relay connector is the fan +12 fan motor connection start there.
Check to see the fat red wire isn't somehow melted into the purple motor wire that would make it run, trace it through the harness as far as you can.
I never thought of that. I've seen the power antenna keep running when it's been broken but it's always had a clicking sound at the same time.
Either way it's easy to find out. Unplug the blower relay and it stops its the blower relay. If it keeps running unplug the power antenna and see if it's that.
Looking at the photo, it appears you have the Touch Climate Control (C68).
This system doesn't have a blower motor relay.
The speed is controlled by the system head and the electronic board in the heater box next to the blower motor.
Look up a wiring diagram for the C68 system. It is different and more complex than the manual C60 system.
That connector tells us you have the C68 option. This part is very expensive compared to the $20 blower motor resistor on the C60
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