Having problems with your 1991 Lexus LS 400 ?

Alternator not charging, exchanged with known good one still not charging, checked fuses

Posted / edited by AnonymousUser on : 17-01-2022

Answers :

When you swapped the alternator, did you also changed the alternator rectifier? Looks like its either rectifier problem or problem with battery itself. Try using battery from another car and see if its charging. This will be the easiest troubleshoot for now. If still not charging then use a multimeter to check the output of alternator.
Repair Help & Product Troubleshooting for 1991 Lexus LS 400

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