After On-Board Diagnostics
WARNING: This page is about a different car, the 2003 Ford RV Cutaway, 2003 Ford Econoline, 2003 Ford E550 Super Duty, 2003 Ford E450 Super Duty, and 2003 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
The vehicle wiring harness, powertrain control module and non-transmission sensors can affect transmission operations. Repair these concerns first.
After the On-Board Diagnostics procedures are completed, repair all DTCs.
Always repair all non-transmission-related DTCs first, then repair any transmission-related DTCs. Refer to the following DIAGNOSTIC TROUBLE CODE CHART for information on condition and symptoms. This chart will be helpful in referring 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 powertrain control module are diagnosed as well.