[s-cars] Mysterious Elec Problem - Temperature Warning Light always on

[Aaron]

Perhaps ignition switch but Feico's the electrical guhru.  
(Especially with regard to converting pressure variations into 
electrical signals)
Aaron

FvAMI at aol.com wrote:

>In a message dated 1/20/05 8:55:32 AM Pacific Standard Time, 
>mdbishoff at comcast.net writes:
>
>
>>Folks - The warning light on my '92 S4 comes on and starts blinking after
>>about 15 seconds. This happens whether the car is cold or not. I checked the
>>anti-freeze level and it's well within the acceptable range. I replaced the
>>multi-failure sensor on the engine knowing that was causing my gauge not to
>>work, but that didn't solve the warning light problem. I removed the
>>electrical coupling from the bottom of the anti-freeze tank thinking there
>>may be an issue with that particular sensor. I jumped the contacts as well
>>as kept the contacts open, each time starting the car and each time getting
>>the same warning light. I went as far as disconnecting the battery in case
>>some error code was hung up in the ECU. No luck.
>>
>>
>
>Probably a loose connection inside the Dash or a broken wire. The "overflow" 
>switch is the one that triggers this one.
>
>regards
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