GX - 1st Gen (2004-2009) Discussion topics related to the 2003 -2009 GX470 models

Bad Speedo??? Help!!!

Thread Tools
 
Search this Thread
 
Old 05-22-12, 01:42 PM
  #1  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default Bad Speedo??? Help!!!

Hey guys,

Got an 04 GX 470 and just today i was driving home and my speedo was on 0, while i was driving.

HELP!!! This happened a little last year but then it just sort of went away.

When I turn the car on all the other needles flicker, and seem to struggle to idk turn on. But after what appears to be they all pop up into place. Except for the speedo!

Anyone else have this problem? Please Club Lexus save me from having to spend $$$$$

Old 05-22-12, 01:50 PM
  #2  
SC400slide
In Recovery Mode

iTrader: (11)
 
SC400slide's Avatar
 
Join Date: Apr 2012
Location: NM
Posts: 3,868
Received 33 Likes on 27 Posts
Default

Could be loose wires...
Old 05-22-12, 02:08 PM
  #3  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

i was thinking/hoping the same thing.

Can anyone point me to the right ones to play with on the GX?
Old 05-22-12, 02:13 PM
  #4  
SC400slide
In Recovery Mode

iTrader: (11)
 
SC400slide's Avatar
 
Join Date: Apr 2012
Location: NM
Posts: 3,868
Received 33 Likes on 27 Posts
Default

I'm pretty sure it could be the wires to the Speedo
no 2004 Lexus speedo would fail that early....
In my opinion at least
Old 05-22-12, 02:19 PM
  #5  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

Well yes but to my understanding they connect to the transmission some how?

You can't unfortunately reach around the cluster and jiggle the cables, as much as I wish it was that easy!
Old 05-30-12, 07:18 AM
  #6  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

Well, it started working again today after about a week of guessing how fast I was driving and "keeping up with traffic"

Can anyone explain maybe there maybe something loose to my dash board. Why would it temporarily not work last year and start working again for a year, almost to date, and then develop the same "illness" and get over it

Any help is greatly appreciated!!

Thank you
Old 05-30-12, 07:31 AM
  #7  
06isDriver
Lexus Test Driver
 
06isDriver's Avatar
 
Join Date: Aug 2009
Location: Louisiana
Posts: 1,353
Likes: 0
Received 2 Likes on 2 Posts
Default

electrical gremlins are always the worst, especially in the case of loose wires. One bump may fix it, another bump messes it up.
Old 05-30-12, 08:40 AM
  #8  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

YES THEY ARE!! GRRR

What should I fiddle with? Could it be a fuse or a connector? Maybe a cable?
Old 05-30-12, 10:10 AM
  #9  
06isDriver
Lexus Test Driver
 
06isDriver's Avatar
 
Join Date: Aug 2009
Location: Louisiana
Posts: 1,353
Likes: 0
Received 2 Likes on 2 Posts
Default

you could start with the speedo sensor, which I assume is located at the rear wheels, and then work your way all the way up to the speedo itself.

Get yourself a good multimeter and you might consider purchasing a little time on the TIS website to download wiring diagrams to help you out.
https://techinfo.toyota.com/techInfo...9-1&SMLOCALE=U

Last edited by 06isDriver; 05-30-12 at 10:14 AM.
Old 05-30-12, 12:13 PM
  #10  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

Ok thanks for the tips! Any links to buy a good multimeter? I don't have one
Old 05-30-12, 12:24 PM
  #11  
06isDriver
Lexus Test Driver
 
06isDriver's Avatar
 
Join Date: Aug 2009
Location: Louisiana
Posts: 1,353
Likes: 0
Received 2 Likes on 2 Posts
Default

enjoy the educational video


multimeters:

https://www.google.com/search?q=mult...w=1280&bih=696

Oh and get one that has an auto-off feature. 9 times out of 10 I'll forget to switch it to OFF and the next time I need it I have to replace the battery.

Last edited by 06isDriver; 05-30-12 at 12:31 PM.
Old 05-30-12, 01:23 PM
  #12  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

Thanks for the help!
Old 05-31-12, 05:09 PM
  #13  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

Now it is out again! Grrr it seems to be something clearly electrical. WTF!!!1
Old 05-31-12, 06:16 PM
  #14  
tz693
Intermediate
 
tz693's Avatar
 
Join Date: Feb 2011
Location: NJ
Posts: 342
Received 39 Likes on 30 Posts
Default

Originally Posted by TopGear300
Now it is out again! Grrr it seems to be something clearly electrical. WTF!!!1
Hope these get you a starting point.
Attached Files
File Type: pdf
Speed sensor.pdf (28.7 KB, 270 views)
File Type: pdf
Speed sensor2.pdf (20.5 KB, 204 views)

Last edited by tz693; 05-31-12 at 06:25 PM.
Old 06-02-12, 08:12 PM
  #15  
TopGear300
Driver
Thread Starter
 
TopGear300's Avatar
 
Join Date: Mar 2011
Location: CT
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Default

Thank you! Your the man!
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Roadtripn
GX - 1st Gen (2004-2009)
8
11-23-23 10:50 AM
maxsprint
GX - 1st Gen (2004-2009)
2
02-10-12 01:20 PM
RedSC
GS - 1st Gen (1993-1997)
3
05-27-10 01:13 AM
DRFTSC400
SC- 1st Gen (1992-2000)
11
03-23-09 10:22 PM
Batmobile
Performance & Maintenance
10
05-11-06 04:22 PM



Quick Reply: Bad Speedo??? Help!!!



All times are GMT -7. The time now is 05:54 PM.