After On-Board Diagnostics

After On-Board Diagnostics

NOTE: The vehicle wiring harness, powertrain control module (PCM) and non-transmission sensors may affect transmission operations. Repair these concerns first.

After the on-board diagnostic procedures are completed, repair all DTCs.

Begin with non-transmission related DTCs, then repair any transmission related DTCs. the Diagnostic Trouble Code Charts for information on condition and symptoms. Diagnostic Trouble Code (DTC) Charts This chart will be helpful in referring to the correct manual(s) and aids in diagnosing internal transmission concerns and external non-transmission inputs. The pinpoint tests are used in diagnosing transmission electrical concerns. Make sure that the vehicle wiring harness and the PCM are diagnosed as well. The Computer and Control Systems will aid in diagnosing non-transmission electronic components.