Diagnostic Starting Point - SIR for Saturn L300/LW300 2005
Begin the system diagnosis with the
Diagnostic System Check - Vehicle
in Vehicle DTC Information. The Diagnostic System Check -
Vehicle will provide the following information:
| • | The identification of the control module which commands the system |
| • | The ability of the control module to communicate through the serial data
circuit |
| • | The identification of any stored DTCs and their status |
The use of
Diagnostic System Check - Vehicle
in Vehicle DTC Information, will identify the correct procedure for diagnosing the
system and where the procedure is located.