Diagnostic Starting Point - Automatic Transmission

Diagnostic Starting Point - Automatic Transmission
Begin the system diagnosis with Diagnostic System Check - Engine Controls. The Powertrain OBD System Check provides the following information:
- The identification of the control module(s) which commands the system
- The ability of the control module(s) to communicate through the serial data circuit
- The identification and status of stored Diagnostic Trouble Codes (DTCs)

The use of Diagnostic System Check - Engine Controls identifies the correct procedure for diagnosing the system and where the procedure is located.