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Jerry, Master Mechanic
Category: Dodge
Satisfied Customers: 1754
Experience:  ASE Master tech, 30 years exp. troubleshooter, driveability tech
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Ok I tested the ground with test light it lights up when you

Customer Question

Ok I tested the ground with test light it lights up when you hook it to pos. On batt. I have all power to plugs if I put test light to ground and prob the blue wire next to ground blower runs on high if I unplug from back of controller I can ground the
blue wires and blower motor will run on high but controller will not power up to run heat or ac
Submitted: 1 year ago.
Category: Dodge
Expert:  Tim Mohr replied 1 year ago.

Hi, my name is ***** ***** caused by a bad blower resistor, the resistor control the speed of the blower motor usig this ground,have you replaced the resistor yet?