Begin the system diagnosis with
Powertrain On Board Diagnostic (OBD) System Check
. The Powertrain
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 OBD System Check will identify the correct
procedure for diagnosing the system and where the procedure is located.