T5 ECU wiring diagram needed. - The Saab Link Forums

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Old 07-09-2013, 12:27 PM   #1
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T5 ECU wiring diagram needed.

I have a 1999 Saab 9-3 and have a two ECUs where the T7 BPC mod has been completed. With both ECUs I am finding 9v w/ respect to positive (per picture below connects to the left terminal). Wierder still, of the other 2 wires neither is producing voltage with respect to ground. This leaves me without a power wire to connect to the right terminal...



Does anyone have a wiring diagram so I can check for power at the ECU? I tried searching on ecuproject and struck-out. I have yet to setup an account there for assistance.

I am left wondering if I have an electrical gremlin to hunt or something as simple as a fuse or relay failure. I mention this as the T5 valve didn't work at the time I purchased the car even before the ECU mod/tune. I had been running on a MBC since purchase.

Hoping someone here can help.
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Old 07-09-2013, 05:17 PM   #2
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Isn't there one in the T5 manual?
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Old 07-09-2013, 06:59 PM   #3
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Forgive, me but I am confused...do you mean in the manual that came with the car..? Or something else?

I am have found a few things in the WIS to point me to the relays/fuses to check, but so far nothing leading me down where I can check to see if 14v is being seen @ the ECU...
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Old 07-09-2013, 07:14 PM   #4
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The T5 Suite documentation


Sent from AutoGuide.com App
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Old 07-09-2013, 07:55 PM   #5
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Quote:
Originally Posted by dantinne View Post
The T5 Suite documentation


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Sorry yeah the stuff included with the T5suite download. It has a couple PDF files and one of them is just abkut T5 in general.
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Old 07-10-2013, 04:11 AM   #6
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anyone have a link to download t5suite? normal site is down and my other laptop that has suite is dead
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Old 07-10-2013, 07:17 AM   #7
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anyone have a link to download t5suite? normal site is down and my other laptop that has suite is dead
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http://socalsaab.com/suites/suites.htm

Pretty sure there's been a couple upheavals in the people involved so things are up in the air at the moment.
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Old 09-03-2013, 10:49 AM   #8
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Does anyone know what fuse or relay may cause the lack of 14v?
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Old 09-03-2013, 12:45 PM   #9
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Paging Mike D.
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Old 09-03-2013, 01:20 PM   #10
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t7 bpc pin 1 goes to +12v swithced
t7 bpc pin 2 goes to ECU pin 26

Hope that helps
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Old 10-30-2013, 06:00 PM   #11
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Well turns out the reason I couldn't find the 14v power wire was due to a blown fuse. #13 fuse under the hood which is a 7.5 was blown. Replaced and boom Bob's your uncle. The power wire turned out to be orange. The variable voltage 9.3v was the blue wire. T7 BPC installed and boosting. Shout out to JZW for thr tune and emailing with me.
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