WHAT WOULD CAUSE BLOWER NOT TO WORK ON HEATERAC

2003 Chevrolet Silverado

Tiny

Anonymous

January, 30, 2013 AT 5:40 PM

What would cause blower not to work on heater/ac

2 Answers

Tiny

JDL

January, 30, 2013 AT 6:32 PM

Check for voltage and ground at the blower motor connector, key on, blower controls on. If good voltage and ground with no blower action, suspect the blower motor. If no voltage, could be wiring circuit--fuse-- blower motor control module, where applicable.

Tiny

JDL

January, 30, 2013 AT 6:40 PM

At the blower motor, the purple wire is voltage, black wire is ground. Note the diagram. The red wire to processor is fuse protected, blower fuse. There are a couple other fuses, that go to the hvac control module.

Please login or register to post a reply.