Skip the auto shop - Our mechanics make house calls

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?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
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: My car cranks but doesn't turn over

Hi there. First, we need to determine what is going on. Does it crank and not start? or does the engine not crank/turn over? Cranking and turning over mean the same to technicians. You described it as cranking and not...

Q: Having problems getting axle out have rented special tool and pulled on it no luck any secrets

Hi there. From the description you have given, it is hard to say what style axle you have, 2wd, 4wd, front, rear? Assuming, it is the rear. There are several styles apparently available from Jeep. If, axle bearing is pressed...

Q: Check engine light on

This code is for evaporative emissions (EVAP) purge system performance. The EVAP system is responsible for preventing fuel vapor emission from entering the atmosphere. The EVAP system uses a purge valve to allow stored fuel vapors from the fuel tank...

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...
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...
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...