Diagnostic Starting Point - Automatic Transmission

Begin the system diagnosis with the Diagnostic System Check - Engine Controls in Engine Controls - 2.6L and 3.2L or Diagnostic System Check - Engine Controls in Engine Controls - 3.6L (LY7). The Diagnostic System Check - Engine Controls in Engine Controls - 2.6L and 3.2L or Diagnostic System Check - Engine Controls in Engine Controls - 3.6L (LY7) will provide the following information:

• The identification of the control modules which command the system
• The ability of the control modules to communicate through the serial data circuit
• The identification of any stored diagnostic trouble codes (DTCs) and their status

The use of the Diagnostic System Check - Engine Controls in Engine Controls - 2.6L and 3.2L or Diagnostic System Check - Engine Controls in Engine Controls - 3.6L (LY7) will identify the correct procedure for diagnosing the system and where the procedure is located.