Q: Low voltage light on dash

asked by on November 25, 2016

Jeep started fine, put it in drive and automatically shifted I to 3rd gear (which is an ongoing problem while driving). Parked car, turned it off and tried again a couple more times. Finally it drove in D and battery light came on. Drove home, turned it off, tried again and wouldn't start. Making rapid clicking sound. 2 wires on PCM where damaged and repaired, battery replaced (went down to 60% after driving about 1mi - battery light turned on dash- having checked at auto part store), alternator tested good 3x at 2 different auto part stores. All fuses and wires have been checked. No other ideas
My car has an automatic transmission.

Battery will not hold a charge Inspection $94.99 - $114.99 Get a Quote

This seems to be a common problem with Dodge, Chrysler, Jeep vehicles. Many of these vehicles have a fusable link wire that goes from the battery to the alternator. When this fusable link fails, the charge from the alternator will never reach the battery. I would recommend having this wire checked for continuity. If this wire has no continuity, the fusable link has failed. If the fusable link has failed, the wire will require replacement in order for the charge to reach the battery. If you would like to have this fusable link wire inspected, consider YourMechanic, as a certified mechanic can come to your home or office to inspect the fusable link wire for you.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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


Experienced Mechanic?

Earn up to $70/hr

What others are asking

What does the Coolant Level Low Add Coolant message mean?
The Coolant Level Low Add Coolant message appears on your driver information center (DIC) when the engine has an insufficient amount of coolant. After adding more coolant, the DIC will turn off this message.
Oil leak and car overheating
The head gaskets failing could indeed cause this issue. Some ways to figure out if the head gasket is bad would be evidence of internal leakage of oil or coolant via pressure tests and compression tests. If the head gaskets have...
Coolant leak at front of engine
Coolant can leak from a variety of places. The only way to be certain is to see exactly where it's coming from. Large leaks are pretty easy to find. Small leaks may require special tools to locate. Some leaks are...
Gas mixed in engine oil
With the gas getting into the oil, this vehicle needs repair before it is driven further, engine damage be a result if one continues to drive. The answer to this question could differ depending on how the gas was added...
Engine and low trac lights come on
Hello. There are several things that could cause the Check Engine Light (https://www.yourmechanic.com/article/the-check-engine-light-demystified) to come on after getting the spark plugs replaced by the dealership. If the Check Engine Light never turned off after the original repair was completed, it...
Mercury Gr Marc 2001 "CHECK ENGINE" light turned on. What do I need to get checked
Hello. You'll need to attach a Diagnostic Code Reader (aka, a "scanner") to a terminal beneath the dashboard of your car, which will read out Diagnostic Trouble Codes (DTC's). These Codes usually offer critical clues as to what the underlying...
Car won't start - 2004 Volkswagen Golf
Hello. I will help you on this. It's unclear whether you bought a new battery and a new alternator because those parts were accurately diagnosed as defective. A battery must be load tested, only after it is fully charged, in...
My brakes are messed up
The noise is coming from your brake booster has a vacuum leak and will need to be replaced. This is why your engine runs rough when you press the brakes.

Related articles

A Buyer’s Guide to the 2012 Jeep Grand Cherokee
Though Though the Jeep Grand Cherokee is not a new model, it got a complete redesign in 2011, and the 2012 Jeep Grand Cherokee saw even more improvements. While other SUV manufacturers have sat on their laurels, Jeep has done...
2005 Jeep Wrangler vs. 2005 Chevrolet Blazer: Which One Should I Buy?
Sport SUVs are a class all of their own; these vehicles are meant for a fun drive through the woods and across the trail – but not necessarily to Grandma’s house! Think instead about going through the creek and through...
The Best Used Cars to Buy If You Live in a Cold Climate
If If you live in a cold climate, likely one of your biggest concerns when you are considering which used vehicle you should buy is how well it will perform in snowy, icy conditions. We have evaluated a number of...