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Old 07-05-2001, 07:40 AM
Join Date: Sep 2000
Location: Sugarland, TX
Posts: 285
I have no power to the driver side doom light, the passenger side is ok. It works when the right side door is open.

It all started when I replace the lock cyclinder, while I remove the lock syclinder, the alarm came on, and it shut off by itself after about a few minutes.

Beside the doom light failed, there is no power to hood switch, and I am not able to move the power seats, it used to be able to change to seat position without the engine turn on.


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Old 07-05-2001, 07:37 PM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
The driver side control runs thru the warning buzzer relay!! And it is common for that trigger(computer relay) to fail, it is under the drivers underdash panel.
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Old 04-07-2002, 09:00 PM
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warning buzzer relay

i have the same problem with my drivers side door ie no dome light or lower door light.can anyone tell me where the buzzer relay is located on an 89 300se?? thanks ed
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Old 04-07-2002, 09:34 PM
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Join Date: May 2001
Location: Florida
Posts: 1,105
Is that the relay right beside the cruise amp??
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Old 04-08-2002, 08:24 AM
Join Date: Sep 2000
Location: Sugarland, TX
Posts: 285
I am not sure the location of the buzzer relay of an 89 300se. On my 124, it is behind the ignition key unit.

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Old 04-09-2002, 12:36 PM
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Join Date: Jul 2000
Location: Sunny Florida
Posts: 199
On the 126, it is located underneath the dash, near the emergency brake mechanism. Smaller of the two relays, I believe. The larger is the Cruise control amp.

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Old 04-11-2002, 01:08 AM
Posts: n/a
buzzer relay

thanks for the info i just need to find a way to become gumby and find that darn relay. ed
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Old 04-17-2002, 05:19 PM
Posts: n/a
warning relay

just wanted to say thanks to john,mike,and ryan.finally was able to get at the relay and see the pn.ive ordered it .hopefully ill have a dome light when the drivers door is opened.ill post when i get it squared away. ed
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Old 04-30-2002, 09:30 PM
Posts: n/a
let there be light!!!!

the warning relay was the problem.what a nasty place mb put that relay.the cruise amp and warning relay are together on the same assembly.for the life of me i could not see how everything was held together so i dropped the whole thing down after this dumb move i found that one little clip holds the relay and its bracket to the cruise amp and its bracket.i can only look on the bright side i have a dome light when the drivers door is opened,i didnt brake anything in the whole process and i saved a few bucks,thanks to all of you. ed
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