Diagnostic Starting Point - Automatic Transmission: Notes
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Begin the system diagnosis with Diagnostic System Check - Vehicle . Diagnostic System Check - Vehicle provides the following information:
- The identification of the control modules which command the system
- The ability of the control modules to communicate through the serial data circuit
- The identification and status of stored diagnostic trouble codes (DTCs)
The use of Diagnostic System Check - Vehicle identifies the correct procedure for diagnosing the system and where the procedure is located.