After On-Board Diagnostic (OBD)
WARNING: This page is about a different car, the 2008 Ford RV Cutaway, 2008 Ford Econoline, 2008 Ford E450 Super Duty, and 2008 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The vehicle wiring harness, PCM and non-transmission sensors can affect transmission operations. Repair these concerns first.
After the On-Board Diagnostic (OBD) tests are complete, repair all DTCs.
Always repair all non-transmission-related DTCs first, then repair any transmission-related DTCs. Refer to the DTC Chart for information on condition and symptoms. This chart will be helpful in referring to the correct manual(s) and to aid in diagnosing internal transmission concerns and external non-transmission inputs. The pinpoint tests are used in diagnosing electrical concerns of the transmission. Make sure the vehicle wiring harness and the PCM are diagnosed as well. The appropriate Engine Performance article will aid in diagnosing non-transmission-related electronic components.