I recently purchased a well maintained 1993 Lexus LS 400, but the battery was said to be a problem. I have only driven it a few times, but I notice when I apply the breaks the headlaps blink. Can this be a symptom of an electrical problem that would explain why the battery was always being drained for the prior owner? I am going to purchase a new high quality battery, but the prior owner told me to keep the + terminal disconnected so it would not go dead. Hmmm :( This does not sound like a practical way to address the problem. Any suggestions? Scott

Asked by thomascott Aug 05, 2014 at 07:23 PM about the 1993 Lexus LS 400 RWD

Question type: Maintenance & Repair

!993 Lexus LS 400 w/ 130K miles, well maintained at local garage. I am trying to see if their is a more fundamental electrical problem that I should be aware of with this make of car. Thank you. Scott
ruabear02@aol.com

katmandu answered 9 years ago

easiest way is to use a dvm set for dc current draw should be approx .03 ma. if it is higher remove fuses on suspected circuits one at a time while watching meter. hope this helps

1 people found this helpful.

Mark helpful

katmandu answered 9 years ago

ah that suggestion was re parasitic draw

Mark helpful

Your Answer:

I recently purchased a well maintained 1993 Lexus LS 400, but the battery was said to be a problem. I have only driven it a few times, but I notice when I apply the breaks the headlaps blink. Can this be a symptom of an electrical problem that would explain why the battery was always being drained for the prior owner? I am going to purchase a new high quality battery, but the prior owner told me to keep the + terminal disconnected so it would not go dead. Hmmm :( This does not sound like a practical way to address the problem. Any suggestions? Scott 2 Answers

!993 Lexus LS 400 w/ 130K miles, well maintained at local garage. I am trying to see if their is a more fundamental electrical problem that I should be aware of with this make of car. Thank you. Scott...

1993 Lexus LS 400 RWD

-

Maintenance & Repair
2000 lexus ls400 204k the car was having trobule starting after sitting for an hour atleast. so i changed battery nothing chnaged then i replaced postive terminal with a terminal right from lexus and that solved the problem the car started all the time now after 2 weeks and heavy rain one night i am having the same problem when i put the new terminal in everything fine but why after 2 weeks am i having the same problem? 19 Answers

the car was having trouble starting it would always turn over but it would take a few times to start but always started until one night I needed a jump so the next day I replaced the battery didn't so...

2000 Lexus LS 400 RWD

-

Maintenance & Repair
My LS400 is not running like a V8 should. For the first few years i've had the car it ran great. I use to fool around and drive fast, and when i hit the gas it picked up speed and roared like a V8 should, now it doesn't pick up the speed nor rev up like it used to. What could be the problem? What do i need to fix? 1 Answer

My LS400 is not running like a V8 should. For the first few years i've had the car it ran great. I use to fool around and drive fast, and when i hit the gas it picked up speed and roared like a V8 s...

1998 Lexus LS 400 RWD

-

Maintenance & Repair
SatNav not accurate. Wanders all over the country. LS430 2003. Lexus tell me it is probably a problem with the arial. How do I fix this? Help 2 Answers

When I bought the car the satnav screen messaged it could not read the disc. I changed the computer and hey presto, got a reading and all the usual screen data. However most of the time it does no...

2003 Lexus LS

-

Maintenance & Repair
I have a 94 Lexus, recently i left it on E for 5 days sitting in the sun, i went straight to the gas station when i started it and the acceleration was slow, i put gas and it was fine for a week. 10 Answers

Now after a few minutes of driving it shuts off at a stop sign or light, and won't go when i start it up again, just shuts off immediately. I had a mechanic come over and couldn't diagnose because...

1994 Lexus LS 400 RWD

-

Maintenance & Repair

Looking for a Used LS in your area?

CarGurus has 30 nationwide LS listings starting at $5,995.

Used Lexus GS

6 Great Deals out of 24 listings starting at $9,999

Used Lexus ES

12 Great Deals out of 213 listings starting at $5,900

Used Mercedes-Benz S-Class

18 Great Deals out of 204 listings starting at $6,500

Used Toyota Camry

52 Great Deals out of 1,143 listings starting at $2,500

Used BMW 7 Series

7 Great Deals out of 132 listings starting at $6,995

Used Mercedes-Benz E-Class

37 Great Deals out of 568 listings starting at $5,450

Used Honda Accord

47 Great Deals out of 963 listings starting at $2,995

Used Ford F-150

310 Great Deals out of 13,812 listings starting at $3,800

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.

2 Answers

Your Answer:

Looking for a Used LS in your area?

Shortcuts

Search Lexus LS Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale

2 Answers

Your Answer:

Related Questions

SatNav not accurate. Wanders all over the country. LS430 2003. Lexus tell me it is probably a problem with the arial. How do I fix this? Help 2 Answers

I have a 94 Lexus, recently i left it on E for 5 days sitting in the sun, i went straight to the gas station when i started it and the acceleration was slow, i put gas and it was fine for a week. 10 Answers

Looking for a Used LS in your area?

Shortcuts

Search Lexus LS Questions

CarGurus Experts

Find great deals from top-rated dealers

Related Models For Sale