Shifter will not shift out of park without override

Tiny
MCMICAH
  • MEMBER
  • 1990 LEXUS LS 400
  • 4.0L
  • V8
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
The shifter doesn't shift out of park without the override button which I wouldn't have a problem with except the override has become finicky and difficult to get it out of park even with the override. I'm told it's a relay in the shifter not letting it shift out of park and I'm trying to find out where that is.
Thursday, May 9th, 2019 AT 1:24 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Welcome to 2CarPros.

The shift interlock control module is in the center console. See the attached pictures.
Picture 3 is a wiring schematic of the system. I'm adding it in case it's needed.

Here are a few links you may find helpful when working on it:

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

https://www.2carpros.com/articles/how-to-use-a-voltmeter

https://www.2carpros.com/articles/how-to-check-wiring

___________________________

Here are the directions for removal of the console. The remaining pictures correlate with the directions,

PROCEDURES

picture 3

1. REMOVE CONSOLE BOX

HINT: Tape a screwdriver tip before use.

(a)Using the screwdriver, pry out the cluster finish panel, and after disconnecting the connector, remove the Panel.

picture 4

(b)Using the screwdriver, pry out the lower console cover.
(c)Using the screwdriver, pry out the cover.
(d)Remove the 3 screws and lower console box.
(e)Remove the 4 screws and cup holder.

picture 5

(f)Remove the 4 screws and the console box.
Installation is in the reverse order of removal.

___________________________________

Let me know if this is what you needed or if it helped.

Take care,
Joe
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Thursday, May 9th, 2019 AT 6:56 PM

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