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.
2004 Saab 9-5 Linear, AutomaticFACTORY OEM SERVICE PROCEDURE
Bus messages, Trionic T7: Notes
For further description of the car's bus system, see SYSTEM OVERVIEW, BUS AND DIAGNOSTICS COMMUNICATION, PETROL
BUS MESSAGES, TRIONIC T7
| No control module | DTC |
|---|---|
| TCM | P1623 |
| MIU | P1622 |
| TC/ABS/ESP | P1625 |
Factory Service Tools
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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.