Battery light went on and I just changed the battery, alternator is good

Asked by Batik1978 Feb 08, 2016 at 09:46 PM about the 2002 Jeep Liberty

Question type: Maintenance & Repair

My battery light went on so I had the battery and alternator checked out, the
battery was bad the alternator good. So I went and baught a new battery,
shortly after changing and taking her for a drive the light went back on.

6 Answers

65,450

A bad battery will not cause the battery light to come on light only comes on when there is a problem with the charging system like the alternator, alternator fuse or a wiring problem.

22 people found this helpful.
675

You need to inspect all of the power and ground wires on the battery and the alternator and look for any rust or corrosion and/or any damage. Make sure you follow them all the way to where each end connects to another point. Then, clean all of the connections and/or replace any wires with damage.

10 people found this helpful.
20

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2 people found this helpful.
190

This post is for future use for 02-07 Jeep liberty owners with this problem. There is no cabin compartment fuse for the alternator and it most certainly isn't next to the wiper fuse. If you read the following, it is a cause for a good alt not charging a good battery. Check the fusible link. Green wire at end of red charging wire from the alternator soldered together with black heat sleeve over it. it will run to the bolted connection on engine compartment fuse box. This will be attached with a red wire coming off of the battery. This green fusible link is 10 gauge and may say "fusible link 10 gauge on it" Look for coating blow out and weakness in wire. This will cause no charge from a good alt to a good battery.

14 people found this helpful.

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