Begin the system diagnosis with the
Diagnostic System Check - SIR
.
The Diagnostic System Check-Engine Controls 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
the codes' statuses |
The use of the Diagnostic System Check-Engine Controls will identify
the correct procedure for diagnosing the system and where the procedure is located.