Q: I have a low battery reading and the Check Gauges Light is on

asked by on

Low battery reading and check gauges light on. Getting code p1682. The battery gauge on dash moves up and down every now and then but now is going into the red and turning on gauge light. Runs fine still.

My car has 166000 miles.
My car has an automatic transmission.

Hello. This is a failure in the alternator. When the alternator is not charging correctly this code will come up and the gauge will act like this. The low voltage that is in the system will cause all of these problems. I usually check the alternator by load testing it and checking the connections on it. If the connections are fine then the alternator is bad. If you are planning on having this charging system repaired, consider YourMechanic, as a certified mechanic can come to your home or office to diagnose this charging system problem and repair it.

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. I have a low battery reading and the Check Gauges Light is on

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: Possible defective alternator

Hello. The best thing to do would be to test your battery and alternator to check to see whether your alternator is defective or if your having a battery issue. The battery starts your car, then the alternator takes over...

Q: Sputtering then stalls at idle rpm

Hello. If your vehicle is stalling after three minutes, then the computer should have stored a code for the issue unless the computer or power to the computer is at fault. Have the computer scanned and any codes diagnosed to...

Q: My keyless entry remote only works when vehicle is on... (Vehicle was stolen and recovered)

It sounds like there may be an issue with the module that recieves a signal from your key fob. This module should be working even if the engine is not running. It is very likely that the security system was...

Related articles

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...