Help: Instrument Cluster Lights Go Off When Hiting The Break

[gremio]

Whenever I hit on the brake (Park or Drive mode):

- The Instrument Cluster lights go off

- The "R" Reverse light on the Instrument Cluster lids on

- The RPM kick up while on "D" (Car thinks it needs to go in reverse) !!

I have unplugged the battery cable for resetting but that didn't help. It sounds like there is a short somewhere!!

Please advice? Thanks,

91 LS400

[dcfish]

Whenever I hit on the brake (Park or Drive mode):

- The Instrument Cluster lights go off

- The "R" Reverse light on the Instrument Cluster lids on

- The RPM kick up while on "D" (Car thinks it needs to go in reverse) !!

I have unplugged the battery cable for resetting but that didn't help. It sounds like there is a short somewhere!!

Please advice? Thanks,

91 LS400

Check the trunk wiring that runs along the trunk hinge. There is alot of info on this if you search. There is usually a short in the wiring in the early LS's and causes all kinds of different symptoms.

[gremio]

Thanks, I found the link.

http://us.lexusownersclub.com/forums/index...=24822&hl=hinge

[90LS400Lexus]

Yep, definitely sounds like the old "trunk wiring" woe.

There should be a recall on this. What do you think?

Good luck!

[ko90ls]

i got one for you, when i shift into R i get no dash light but the car is in reverse! N is fine but D is very intermitten; the car drives fine but the light will cut out sometimes. what ive found out is that when i play with the shifter the D light may come on but the R is done. think it could be in the back of the cluster?

[gremio]

Problem found exactly as you guys described.

Check the attached picture so you can see what went wrong:

Many thanks to Lexus Owners Club members

[akewlguy]

Seems my R - N and P work but no D or 2? So I will have to review the notes.