Diagnostic Starting Point - ZF S6-650 Transmission

Diagnostic Starting Point - Manual Transmission
Begin the system diagnosis with Diagnostic System Check - Vehicle in Vehicle DTC Information. The Diagnostic System Check - Vehicle will provide the following information:
^ The identification of the control module or modules which command the system.
^ The ability of the control module or modules to communicate through the serial data circuit.
^ The identification of any stored diagnostic trouble codes (DTCs) and the status of the codes.

Use the Diagnostic System Check - Vehicle in Vehicle DTC Information in order to identify the correct procedure for diagnosing the system and where the procedure is located.