Cascade Crew

turbo_jimi · Posted: Sat Mar 23, 2013 5:14 pm Post subject: 80 Camaro Heater Troubles

Hi,

I'm troubleshooting the heater controls on this car. I know the blower motor works at the relay, but I'm not sure how to test from the controls. I have a spare battery, but am not sure where to attach the ground. Each position should be positive. Any help with this is appreciated.

chevymad · Posted: Sat Mar 23, 2013 5:39 pm Post subject:

Normally the blower motor will have constant power and the ground side is routed through the switch and a blower resistor. The resistor is the most common failure point next is the blower motor itself. Check for power and ground at the blower motor.