J053Ph

This worked on my rpm meter and it is working properly now. But my speedo does not match the speed I'm going. I tried this attempt and it is not fixed.

We3clifts

I have a 2006 is250 with larger than stock tires. The speedo is off by 6-7 mph a speeds above 65. Can I adjust the needle to a bit less than zero to compensate?

LScowboyLS

No

use this instead

Michael

I have 93 LS and had the sticking needle problem. The problem has been fixed by replacing caps on my ECM as LSCowboy recommended. When I took the ECM out to replace caps, only one cap had a sign of leak. I am thinking that cap was responsible for the problem. I did cap replacement on the dashboard too but the ECM cap replacement is actually easier then dashboard as ECM is not a surface mount type board.

TaninAuto

We sell every gauge cluster part for every year LS400. We also repair customer gauge clusters. If you need something repaired or want to purchase replacement parts, send us a message.

power54

Hello everyone I am new to the Forum and this is my first post.
After reading up on the boards on some of the fixes for the tachometer, i was able
to take it out from the dash and disassembling it to see where the problem lies.

I found that there we some leakage, what i did was clean the circuit board with rubbing alcohol and vinegar. I then was able to solder on one capacitor that had a higher voltage than the one i took out, i believe i swapped out the 25v for a 50v capacitor.

I put it back together in the car this morning and everything worked out great for now. Anyway this was my first time soldering on a circuit board, and found that taking out the instrument panel was the hardest thing to do. I hope that my story serves as an inspiration for anyone who has the desire to do the job, but are afraid of attempting it.

Just a reminder be very patient when doing any kind of work on the circuit board, and also make sure you ground yourself when working on the board. That is all.

Hope that helps someone looking for answers.

sha4000

iTrader: (1)

Is this safe long term?

OMAHA

i have a 1994 Lexus LS400 and it does have these issues......these cars are always a work in progress.!

Michael

This sticking needle problem happens sporadically. I thought the problem has resolved, it did not. Replacing caps on ECM did not fix the problem. Just wanted to stand correct.

This problem seems to happen when warm. It really may be the needle is sticking to the base due to the sicking substance at the base of needle.

TaninAuto

We can repair the needle sticking issue for around $100 including return shipping as long as they are still working most of the time..

If you wait too long the needle and motor assemblies will have to be replaced entirely.

Anjumkha

I think there are two kinds of problems:
1. Sticking needle
2. Bad sensor

My problem may be due to a bad sensor , Because I have seen the needle showing speed and then suddenly, the needle will dive down to zero, later coming to life and showing speed.
If it goes down it means there is a sensor problem.

M KHan

TaninAuto

It's not a sensor. The issue is inside of the gauge cluster.

Caniac14

Hey. My needle has started to act wierd like in the first post.
In the mornings after I start the car sometime the needle will work, another others it will stick on 0 for a while and then finally bounce up the the speed I am going. The longest instance of this was yesterday morning where it stayed at 0 for 3 miles before jumping to the speed I was going.

Is it indeed a bad speed sensor that causes this?

Side note: I already have my 6 caps for the ECM job but haven't gotten around to finding someone to repair it. Mainly because I am too lazy to try and take the glove box apart. So if the ECM caps are the problem at least I'll have some incentive to get to work on that.

TaninAuto

It is not a bad speed sensor or the ECM.

Caniac14

What's the problem then?