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Home >> Saab >> 1999 >> 9-3 Base, 2D Convertible, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - TRIONIC T5 Fuel Control System >> Diagnostic Tests >> DTC P0605: Internal Control Module Malfunction
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DTC P0605: Internal Control Module Malfunction

DTC P0605 is most likely caused by an internal ECM malfunction. Substitute known good ECM and retest system. See ENGINE CONTROL MODULE (ECM) under COMPUTERIZED ENGINE CONTROLS in REMOVAL, OVERHAUL & INSTALLATION article. No other diagnostic information is available from manufacturer.

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