Diagnostic Starting Point - Automatic Transmission

Diagnostic Starting Point - Automatic Transmission
The Diagnostic System Check provides the following information:
^ The identification of the control module or modules which commands the system
^ The ability of the control module or modules to communicate through the serial data circuit
^ The identification and status of stored Diagnostic Trouble Codes (DTC's)
The use of Diagnostic System Check - Engine Controls identifies the correct procedure for diagnosing the system and the procedure location.

Symptoms
When it has been determined through Diagnostic System Check - Engine Controls that no DTC's are present, begin symptom diagnosis by reviewing the Transmission Component and System Description ``ation enables you to understand the operation of the system. This helps you determine if the condition described by the customer is normal or if a malfunction exists. If it is determined that a malfunction exists, identify the concern by referring to Symptoms - Automatic Transmission . The Symptoms - Automatic Transmission table provides common diagnostic categories which relate directly to diagnostic information or procedures.