Diagnostic Procedure
WARNING: This page is about a different car, the 2004 Ford Pickup, 2004 Ford F550 Super Duty, 2004 Ford F450 Super Duty, and 2004 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
- Retrieve all DTCs stored in RCM memory by executing RETRIEVE/CLEAR CONTINUOUS DTCs. See RETRIEVING FAULT CODES .
- Run on-demand self-test to determine what DTCs are currently being sensed by RCM. See ON-DEMAND SELF-TEST .
- If stored DTCs are different than current DTCs, always repair current DTCs first.
- If different continuous DTCs are displayed from memory than on-demand self-test, repair on-demand self-test codes first then repair continuous codes.
- If no DTCs are retrieved and symptoms are observed, refer to diagnostic symptoms table. See DIAGNOSTIC SYMPTOMS table.