Test MB: OBD-II Readiness Code: Testing
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Ford RV Cutaway, 2002 Ford Pickup, 2002 Ford F550 Super Duty, 2002 Ford F450 Super Duty, and 2002 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.
- 1) Continuous Memory DTC P1000: Repeat Self-Test
DTC P1000 indicates operating conditions have not been satisfied for all OBD-II monitors to be run. Possible causes are:- Drive Conditions Not Satisfied
- Keep Alive Memory (KAM) Cleared
- Faulty PCM
Perform all SELF-TESTS and check for DTCs. If any DTCs other than P1000 are present, perform appropriate system test and repair as necessary. See DIAGNOSTIC TROUBLE CODE DEFINITIONS . If DTC P1000 is only DTC present, go to next step.
- 2) Perform Drive Cycle
Perform drive cycle. See DRIVE CYCLE PROCEDURE under ADDITIONAL SYSTEM FUNCTIONS. If DTC P1000 is now cleared, no concern is indicated at this time. If DTC P1000 is still present, go to next step. - 3) Verify Certain Operating Conditions Have Been Satisfied
Ensure the following conditions are met:- Using scan tool, access EOT, VPWR and GPC PIDs from PID/DATA MONITOR & RECORD menu. If engine is started and EOT PID value is less than 86°F (30°C) on Econoline or less than 131°F (55°C) on Excursion and F250-750, VPWR value must be 11.5-14.0 volts until GPC PID value is zero percent.
- Using scan tool, monitor MFDES PID reading with engine speed (RPM) under full load. MFDES PID reading must be more than 37 milligrams/stroke for 12 seconds or more with engine speed at more than 2300 RPM.
- Using scan tool, monitor MFDES PID reading with engine at normal operating temperature and at idle. MFDES PID value must be less than 12 milligrams/stroke for 12 seconds or more.
With all conditions met in this step, if DTC P1000 is cleared, no concern is indicated at this time. If DTC P1000 is still present, determine DTC clearing fault. Perform all engine performance diagnostic procedures. See ENGINE PERFORMANCE DIAGNOSTIC PROCEDURES in SYSTEM & COMPONENT TESTING - EEC-V - DIESEL article.
NOTE:
If power to PCM is disconnected, DTC P1000 will be set until OBD-II monitors have been run completely. For additional information on OBD-II monitors, see DRIVE CYCLE PROCEDURE under ADDITIONAL SYSTEM FUNCTIONS.