Important: Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
Perform the Brake System Vehicle Road Test before using the brake symptoms tables in order to duplicate the customer concern.Visual/Physical Inspection
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections . Refer to Brake Pipe and Hose Inspection in order to diagnose a condition concerning the brake pipes and hoses.