Throttle Body Pins 3,5 Resistance - Saab 9000 Bulletin Board - Saabnet.com
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Throttle Body Pins 3,5 Resistance
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Posted by JimO (more from JimO) on Sat, 2 Feb 2008 12:36:16 Share Post by Email
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93 CSET. Pins 2,4,6 readings all measure correctly. Pin 3,5 reading is a constant 26.5K, even when I open the throttle. TCS manual says it should drop to 500 ohms and to replace TB if this test fails. This is written under the section of Throttle Body safety switch. I have already opened the throttle body, so I guess I will try to see if I can find this switch on the motor. Opening the throttle body isn't too bad, but I did twist off every screw (4 of them) on the linkage cover and also broke one of the screws on the diaphragm cover (the one that is hidden under some RTV).

My question is does anyone out there have any experience in this area: ie. is the bad pin 3,5 reading the likely cause of my TCS fault, is it possible to fix a problem with the TB safety switch, or does that whole motor assembly (perhaps the TB) need to be replaced. Thanks.

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