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.
Power supply, ground and bus communication
2010 Saab 9-3X AutomaticSECTION Power supply, ground and bus communication
POWER SUPPLY, GROUND AND BUS COMMUNICATION
| Pin | Signal type | Description |
|---|---|---|
| 6 | Electronic ground | For everything except fuel filler flap solenoid |
| 21 | Power ground | For fuel filler flap solenoid |
| 5 | +30 | For everything except fuel filler flap solenoid |
| 16 | +30 | For fuel filler flap solenoid |
| 40 | I-bus | Bus communication |
| 41 | I-bus | Bus communication |
| 24 | I-bus | Bus communication between the EHU, SDAR, OnStar, TMC and other control modules connected to the bus |
+30 is fed via the connector which is directly connected to the main fuse box.
RENDER: 1.0x
NO RELATED
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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.