90 temp sensor wiring

[no1of consequence]

true! thanks i forgot to mention that.

i think i read that the old connector had a ground lead, and the new ones
are grounded thru the sensor.

jim


>From: Huw Powell <audi at humanspeakers.com>
>Reply-To: audi at humanspeakers.com
>To: no1of consequence <iin10ded at hotmail.com>
>CC: leif.karlsson at mbox332.swipnet.se,  quattro at audifans.com
>Subject: Re: 90 temp sensor wiring
>Date: Sat, 31 May 2003 23:35:50 -0400
>
>I just wanted to add that the new senders have three pins, in the same four
>pin setup - there is no "+" connection required on them for whatever that
>used to run.
>
>>the sensor controls a few things, the temp gauge, the dash auto-check
>>system, and an ac switch. i just had to rewire mine as the plug
>>disintegrated.
>>
>>from the bentley for 80/90/cq:
>>
>>1T = BL/BR
>>2/R = BL/W
>>4C = BL/Y
>>3/+ = BK/BL
>>
>>
>>lead identification on the thermoswitch:
>>
>>---------------------|
>>  T          R  |
>>  +           C |
>>---------^------------|
>>
>>+  carries plus voltage from terminal 15a
>>C sends signal to overheat warning light above 120 C
>>R goes to a/c safety switch
>>T  sends signal to coolant temperature gauge.
>
>--
>Huw Powell
>
>http://www.humanspeakers.com/audi
>
>http://www.humanthoughts.org/
>

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