Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1999 Saab 9-3 Base, 2D Hatchback, AutomaticFACTORY OEM SERVICE PROCEDURE
Power Circuit
- Use DVOM to check for battery voltage at terminal No. 23 (Pink/White wire on 9-3, Red wire on 9-5 Series). If battery voltage exists, go to next step. If battery voltage does not exist, repair open circuit in wire between ECM and fuse (No. 28 on 9-3, No. 17 on 9-5 Series). See appropriate wiring diagram in WIRING DIAGRAMS article.
- Turn ignition on. Check for battery voltage between ECM terminal No. 43 (Yellow/Grey wire on 9-3, Blue/Red wire on 9-5 Series) and ground. If battery voltage does not exist, repair open circuit in Blue/Red wire between ECM and fuse located in dashboard fuse block (No. 17 on 9-3, No. 27 on 9-5 Series).
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.