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SRS light stays on--I already read FAQ 700 1991

posted by  The Plastic Lizard on  Thu Sep 22 08:28 CST 2011
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last visit: Tue Nov 8 09:34 CST 2011
[RELATED]

So I am trying to find out why the SRS light on the 740 is still on. Of course, no code, won't reset. I have checked the steps in the FAQ and diagnosed that I have continuity through all the connections from the steering wheel back to the 2 units under the drivers seat. All the connections seem well attached. Is there anything else I can check?

I was looking at some wiring diagrams online and noticed that they do not match my SRS controller wiring. I pulled off the cover and took a picture of the wires. As you can see in the attached picture the wiring is

location me book
1 empty empty
2 Blue Blue
3 Brn-Blk Brn-Blk
4 EMPTY Blk (grnd)
5 Yellow Yellow
6 Red Red
7 BLK (GRND) Empty
8 Brown Brown
9 Green not listed
10 Blk-Red not listed

So you can see that position 4-7 are switched and I have 2 extra wires in positions 9 and 10.

--
1991 740 B230F 140K miles







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