LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400
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99 Lexus LS400 cruise control switch not working

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Old 09-12-24, 02:34 AM
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TCL99Lexus
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Angry 99 Lexus LS400 cruise control switch not working

My 99 Ls400, with 305K. The cruise control light does not turn on when press No CEL. Car runs great other than that. Help!

Last edited by TCL99Lexus; 09-12-24 at 03:18 AM. Reason: additional info.
Old 09-12-24, 10:32 AM
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Even with no CRUISE light, does the cruise control still work?
Old 09-12-24, 04:09 PM
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Originally Posted by paulo57509
Even with no CRUISE light, does the cruise control still work?
No. No cruise light on, no work.
Old 09-13-24, 05:47 PM
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Forgot to ask another question: Did the cruise control ever work during your ownership?

Diagnosis has the potential to go off the rails.
Old 09-14-24, 03:29 AM
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Originally Posted by paulo57509
Forgot to ask another question: Did the cruise control ever work during your ownership?

Diagnosis has the potential to go off the rails.
I have owned the car for 8 years and no issues at all. The work recently done includes front wheel bearings and upper control arms. After that, the cruise stop working on my way going home after work. I even drove it in the winter. It was working in the morning. I thought there should be a fuse or a control module to it. Apparently, there is none for this generation.
Old 09-15-24, 02:40 PM
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Red face 99 LS400 cruise control not working

Originally Posted by paulo57509
Forgot to ask another question: Did the cruise control ever work during your ownership?

Diagnosis has the potential to go off the rails.

I found the problem. This wheel sensor underneath the steering air bag is bad.
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