Diagnostic Starting Point - Park Brake

Begin the system diagnosis with the Park Brake Diagnostic System Check Refer to A Diagnostic System Check - Park Brake. The Diagnostic System Check will provide the following information:
^ The identification of the control module(s) which command the system.
^ The ability of the control module(s) to communicate through the serial data circuit.Diagnostic System Check - Park Brake
^ The identification of any stored Diagnostic Trouble Codes (DTCs) and their status.
The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.