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Home >> Saab >> 2001 >> 9-5 Base, 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Fault Code Diagnosis >> P1623: No Bus Data From TCM >> Diagnostic Help

Diagnostic Help

Fault diagnosis concerns an intermittent electrical fault in the power supply to the transmitting control module or any of the bus leads.

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