Q: Electrical problems with the car that started suddenly

asked by on

There are some electrical problems with my car that started happening suddenly, for no apparent reason.

It was running fine, but that evening, several features stopped functioning. The lights for the tachometer and speedometer stooped working on the dashboard. Also, the only way I could get the headlights to work on bright, was to hold the lever. Otherwise, they were very dim. Taillights quit working as well. Other than that, everything functions, including wipers, 4-way flashers and the brake lights. I checked the fuses on the dash under the driver's side and everything seems fine. What could be causing this and how can I fix it? Thank you in advance.

If all these problems started happening at the same time then you will have to get the engine control module (ECM) tested to see if it is causing the problems. The ECM controls all these lights using input from the light switches. The dash lights and headlights are all controlled by this module.

There are no technical bulletins for this problem and it is not a common failure, so only an inspection of the electrical system by a mechanic can diagnose the problem.

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. Electrical problems with the car that started suddenly

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: Difficulty shifting into third gear

Hello. There could be a problem with the shifter cable or the shifter linkage from the transmission to the shifter. There also could be a problem with the slave cylinder, causing it to be hard to shift at times. A...

Q: Problem with the taillight fuse blowing out on 1998 Lincoln Mark VIII

Hey there, thanks for writing in about your 1998 Lincoln Mark VIII. I suggest that the wiring circuit of the taillights are inspected by a technician for shorts. There may be a short to power/ground from faulted wiring or incorrect...

Q: Backlighting to the dashboard failed now it’s distracting

This actually may be a normal condition. The alternator on your car has a specified amount of amperage it can output at a given engine speed. For instance, your alternator's maximum output is approximately 125 amps, but only 85 amps...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.