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Engine Management System Motronic E9: Diagnosis Saab 9-3 II

Testing & Diagnostics 1 illustration

Fault symptom

No starter motor cranking.

Engine does not start.

Diagnostic help

Check battery cable connections, to the battery and to the chassis, are tightened and have good contact without oxide or corrosion.

Most functions that can prevent starter motor cranking are monitored by self-diagnostics and therefore generate DTCs if they are faulty.

Fault diagnosis is only used for faults that are not monitored by self-diagnostics.

Scheme 634

Scheme 634: Engine management system Motronic E9, 1/4