LEMON Manuals: Even more car manuals for everyone
Home >> Saab >> 2001 >> 9-3 Base, 4D Hatchback, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (TRIONIC T7 Fuel Control System) >> Technical Description >> Bus communication >> Diagnostics >> Intermittent bus faults

Intermittent bus faults

WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.

Trionic continuously checks to see that TCM and MIU are communicating correctly. Diagnostic trouble codes will be generated if an intermittent fault should occur in the bus communication. The cause of the fault could be that the power supply or one of the bus leads to a control module is missing

MISSING CONTROL MODULES AND DIAGNOSTIC TROUBLE CODES

Missing control module Diagnostic trouble code
TCM P1623 
MIU P1622 
TC/ABS P1625 
scientia non olet · About LEMON Manuals