Begin the system diagnosis with the
Powertrain On Board Diagnostic (OBD) System Check
. The Powertrain
On Board Diagnostic (OBD) System Check will provide 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 of any stored diagnostic trouble codes (DTCs)
and their status. |
The use of the Powertrain On Board Diagnostic (OBD) System Check will
identify the correct procedure for diagnosing the system and where the procedure
is located.