Q: AC, speedometer, and windows not working

asked by on

The AC, speedometer and three of the windows in my vehicle are not working.

Hello. Depending on how and when these items began to fail will make a difference as to what is going on. If they all occurred at the same time, then I would suspect an issue with the fuse box. It is common for the connections in the fuse box to fail over time due to heat. I have also had issues with the wiring in the dash if it has an aftermarket radio in it. If they all failed at different times then they all need to be checked separately.

The windows may all have bad window motors. I check these by removing the door panels and checking for power at the motors. If there is power when operating the switches then the motors are bad.

The speedometer may have failed due to a bad vehicle speed sensor or an issue with the speedometer itself.

The AC can stop operating from low refrigerant, which is the most common, or an electrical failure. I have seen a lot of compressors fail on this engine.

It will take quite a bit of electrical diagnostics to find these issues. If you plan on having this looked at, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose all of these electrical components and make the necessary repairs.

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. AC, speedometer, and windows not working

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: Window won't roll up on one side

Having as much information as possible is extremely helpful when trying to troubleshoot a window that does not roll up all the way. It appears that someone may have started to diagnose your Accord’s window, since we know a part...

Q: Rattling from AC when idling

The rattling may be from the AC compressor pulley or tensioner for the belt. The tensioner is the most common problem, but the spring may be too weak causing vibrations and rattles. I recommend seeking a mechanic, such as one...

Q: What do the iPod error messages mean?

While connecting your iPod to your car’s radio and listening to music stored on the device is pretty simple, there can be problems. When the system encounters an issue, it will display one of several different error codes. Understanding these...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...