2008 AVALANCHE AC BLOWER WIRING DIAGRAM
What the problem with my 2008 Chevy Avalanche heat/AC blower?
Jun 01, 2012I have a 2008 Chevrolet Avalanche with a Heater/AC blower problem. It seems to work intermittently. Sometimes it blows okay, other times not at all, and sometimes at a lower rate. Its very inconsistent, like it has a loose wire or something. It doesn't matter if its heat or AC, or if it's fresh air or recirculating. It just seems to be struggling.
AC Blower Control Module - FixMyOldRIde
It has a three wire connector from the AC control head going into it and the two wires that connect to the blower motor coming out of it. If you have power and ground going in and nothing coming out when you have selected max blower on the control panel, then you have a failed AC blower control module.
Blower motor ground locations? | Chevy Colorado & GMC Canyon
Jul 26, 2015blower does not work on any speeds. (1) I removed the harness and checked for loose or damaged wiring-OK (2) replaced the resistor- NO HELP (3) removed the blower/motor and "hot wired" it to the battery-IT WORKED FINE (4) checked for power at the brown wire on the blower connector- HAS POWER
Air Conditioner Wiring Diagrams: Need AC Wiring Diagram
By passed the pressure switches first thing. Still no compressor engagement. Will proceed with further troubleshooting this evening with the info gathered from here, and elsewhere on the web, and get back to you with further queries, or, (hopefully) resolution of my problem.
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