Well, I just bought a '94 ls 400 "AS IS"...So I think I have to deal with it for a while... My problem is that the battery seems to be taking so much electrical charge from the alternator/(regulator????). The mechanic says even whith the alternator disconnected, the battery still overcharging...Some clues that can help????

if battery is old no hold,alternator is not charging battery is death.

yes you have draw . It could be anything alt, cigar lighter .dome light trunklite glove box light , mine did the same thing

on the shifter console shoul be a little place to depress a button in the console to release shifter if this works you electric solenoid under shifter assy is bad

CHECK THE IGNITION SWITCH FUSE.IF IT LOOK OKAY.I AM LOOKING AT THE IGNITION SWITCH.IT COULD BE OPEN.ITS NOT SENDING POWER TO STARTER.

sounds like you need a new alternator but I would replace battery cables and probably the battery as well.

check with a lexus dealer

Usually not. Disconnect negative battery terminal, then positive. Next remove battery hold down (type is specific to car model). Battery then lifts out and replace with correct new one. Install is reverse.

under the steering column on the left there is a fuse box there are three metal fuses larger than the normal fuse...there is a tiny hole it is the reset button for the theft detection...check the manual...should be around page 194 i think...you just stick a pin into the hole and should reset.you migt need the alarm code to release the lock on te engine.depends on what type of alarm it has installed...

There is a loud squeak on the front of my 1991 ls 400. The squeak is near the alternator. Any one no what it is?