LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

air bag light and car horn not working

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Old 04-11-11, 06:31 AM
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Jeanb
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Cool air bag light and car horn not working

Hi everyone,

I have a 1992 LS 400. Recently the air bag light lit up and shortly after discovered my car horn was not working anymore either. I have read a few post on this forum about the air bag light but not about the two issue together. Could they possibly be related? And any quick fix one can think of is greatly appreciated.

Jean
Old 04-11-11, 12:11 PM
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deanshark
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Not sure if they're related but try this http://www.lexls.com/tutorials/light...rbaglight.html to get rid of the air bag light. Dumb question but did you check your fuse for the horn?
Old 04-11-11, 01:09 PM
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steve2006
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If the fuses check out OK and reseting the airbag light described above fails to work pull the airbag diagnostic codes,
A common cause for both not working could be the clock spring unit,this is a rotary contact set up providing the power to the airbag itself and also the horn switches.

If you google Lexus Clock Spring there is loads of info.

Beware working on airbag systems is dangerous without adequate precautions.

Link shows an ES300 example similar to yours

http://cgi.ebay.co.uk/LEXUS-GS300-WI...-/170544418165

Last edited by steve2006; 04-11-11 at 01:18 PM. Reason: addition
Old 05-03-11, 09:48 PM
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hellaclean
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Originally Posted by deanshark
Not sure if they're related but try this http://www.lexls.com/tutorials/light...rbaglight.html to get rid of the air bag light. Dumb question but did you check your fuse for the horn?
Hey I noticed this shows how to turn the light off but does it cause a problem with the air bags deploying still? I do prefer my airbags to be working..
Old 05-04-11, 12:17 AM
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AzHotLS
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+1 on the clock spring, also known as the spiral cable assembly.

https://www.clublexus.com/forums/ls4...-no-cruse.html
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