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Home >> Saab >> 2000 >> 9-3 Convertible (9400) L4-2.0L Turbo (B205) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Information Bus >> Testing and Inspection >> No Communication With TCM >> Checking That the TCM Control Module Is Active
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Checking That the TCM Control Module Is Active




Checking That The TCM Control Module Is Active







- Turn the ignition switch to the ON position.
- The CHECK GEARBOX lamp should go on and then off again.

Is the function correct?

NO - Checking the TCM Power Supply

YES - Checking the Diagnostic Tool
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