Q: heater ac blower has no power bad ground wire

asked by on

heater ac blower no working new blower, there is no ground i do a temp hard wire to car frame to get blower to work till i see a mechanic?

My car has 107000 miles.
My car has an automatic transmission.

On your vehicle, the ground may be switched through a controller. If you bypass the controller and directly ground the blower it will run at only one speed, namely high. If you do not have the vehicle wiring diagram, or at least a voltmeter, it will be risky to make any circuit changes because if a short circuit were to occur, or other mis-wiring, that could damage other vehicle electronics and possibly cause injury (batteries store lots of amps). Your best bet, and really the cheapest option, is to just have the blower circuit diagnosed and if it is indeed the controller (or resistor block), the mechanic will be in a position to fix it right then and there, once the part is obtained. To request that service please use YourMechanic’s blower motor circuit/resistor block service page. If you have further questions or concerns as you decide what to do, do not hesitate to re-contact YourMechanic because we want you to make the most of your repair dollars and help you get the best possible results.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. heater ac blower has no power bad ground wire

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Can i drive my car 22mins to make it home with my exhaust pipe broke

It depends on exactly what you got. Sometimes, it is OK (I'm sure you have seen others do it) but the problem is there are other things under the car that can get damaged and it also depends on exactly...

Q: Press the gas and my rpm go up to 4000

Hi Sammi. Thanks for sending your question today. I'm not quite certain what issue you're having with the Cobalt. If you press the throttle and the car does not move, but the RPM goes to 4,000 RPM, then you likely...

Q: 2005 jeep wrangler harmonic balenciaga replacement

Engine and transmission mounts are replaced on a mobile basis by certified mechanics dispatched by YourMechanic. The service to request is motor/transmission mount replacement. Harmonic balancers are relatively long-lived but there are a lot of variables that affect service life....

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...