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, StandardFACTORY OEM SERVICE PROCEDURE
Control module bus outputs
- Engine torque, used by TCM (502)
- Accelerator pedal position, used by TCM (502)
- Kickdown, used by TCM (502)
- Engine speed, used by TCM (502), ACC (216) and MIU (540)
- Engine coolant temperature, used by ACC (216), MIU (540) and DICE (628)
- Engine running, used by ACC (216)
- Turbo gauge reading, used by MIU (540)
- CHECK ENGINE, used by MIU (540)
- SHIFT UP, used by MIU (540)
- CRUISE lamp, used by MIU (540)
- Fuel consumed since start, used by MIU (540)
- Diagnostics, used by DICE (628)/diagnostic tool
- Pedal position, used by TC/ABS (382)/ESP (671)
- Engine torque, used by TC/ABS (382)/ESP (671)
- Engine speed, used by TC/ABS (382)/ESP (671)
More detailed information on control module bus outputs can be found in BUS AND DIAGNOSTICS COMMUNICATION .
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.