Hi i have a 1990 saab 9000 cd 2.0 turbo APC/DI and i was wondering what was the easiest way to hook up a L.E.D to the knock sensor so i know when it is knocking.
thanx
knock sensor L.E.D
Dec 01, 2005
3 Replies
"es" skrev i en meddelelse news: snipped-for-privacy@z14g2000cwz.googlegroups.com...
I believe it's pin 17 in the APC-box, and then ground. But google it. :o)
thanx Henrik B
in article 43921726$0$8840$ snipped-for-privacy@dread14.news.tele.dk, Henrik B. at saab@_NOSPAM_tdcadsl.dk wrote on 03/12/2005 22:07:
Pin 19 on the later 25 pin APC boxes.
Pin 19 goes to ground (through pin 5 IIRC) when knock is detected, so the anode side of the LED needs to be supplied with +12V, say, from the stereo head unit's permanent live.
I'm not sure which pin it is on the older 14 pin APC units, though.
Paul
1989 900 Turbo S
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