Electrical Dead Except the Headlights

Asked by Aug 18, 2016 at 06:58 AM about the 2002 Lexus LS 430 RWD

Question type: Maintenance & Repair

Since I don't drive my Lexus that much I leave the positive cable off the post.  I
went to put it on yesterday and the headlights and taillights came on.  The rest
of the electrical system is dead.  It turns over but doesn't start.  Help!!!

1 Answer

293,725

You should be removing the negative battery cable, not the positive. Have the battery checked. Should be 12.3V , if under 12V, that is your problem. It might just be weak from sitting. In the future , instead of removing a battery cable, use a Deltran Battery tender.

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