Begin the system diagnosis with Diagnostic System Check - Manual Transmission . The Diagnostic System Check - Manual Transmission 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 and the status of any stored diagnostic trouble codes (DTCs) |
Use the Diagnostic System Check - Manual Transmission in order to identify the correct procedure for diagnosing the system and where the procedure is located.