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.
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HOMESERVICE MANUALSSAAB20009-3 CONVERTIBLE (9400) L4-2.0L TURBO (B205)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSINFORMATION BUSAPPLICATION AND ID
2000 Saab 9-3 Convertible (9400) L4-2.0L Turbo (B205)
Information Bus: Application and ID
2000 Saab 9-3 Convertible (9400) L4-2.0L Turbo (B205)SECTION Application and ID
A simple means of checking whether the control modules are operative and allow diagnostics communication (column B) is given
for each control module (column A) in the table below.
If the control module is not operative, check whether it is supplied with current and grounded (columns C-E).
Then check whether the control module is connected to the bus (column F) or the data link connector (column G).
NOTE Some control modules also have other supplies of current and ground connections but these are not necessary for diagnostics communication.
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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.