Diagnostic Starting Point

Begin the system diagnosis with SYMPTOM DIAGNOSIS . The DIAGNOSTIC SYSTEM CHECK  will provide the identification of the control module(s) which command the system. The use of the DIAGNOSTIC SYSTEM CHECK will identify the correct procedure for diagnosing the system and where the procedure is located. Review the DESCRIPTION & OPERATION  information to help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the DESCRIPTION AND OPERATION information will also help you determine if the condition described by the customer is normal operation.