T7 ECU Removal
9-5 from 1998 to 2010
The ECU is located on the passenger side under the plastic scuttle panel (below the windscreen).
Step 1. Get a Saab 9-5.
Step 2. Open bonnet.
Step 3. Pull up the middle few inches of the rubber seal strip. Don't pull the end of the strip off (on the wing) as the plastic clips are a pig to get back in and they may break.
Step 8. The boot will lift up to reveal the ECU itself. The large connector on top is removed by lifting the middle of the clip.
Step 9. The tricky bit. The ECU itself is held in by two 10mm nuts, one on each side of the ECU about halfway down. You need a long socket or an extension to get at them. If you have the fingers of a concert pianist then you should be able to keep hold of them when they come off. For the rest of us a blob of blue-tak or reversed sticky tape inside the socket ensures they don't drop down into the passenger footwell (if you're lucky) or on top of the glove box and wiring loom (if you're not).