Test Procedure
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2004 Ford RV Cutaway, 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.
- AC1 DIAGNOSTIC TROUBLE CODE (DTC) P1000 NOTE: If power to the PCM is disconnected, P1000 will be set until the OBD II monitors have run and cleared.
- Diagnostic code P1000 indicates that operating conditions have not been satisfied for all of the OBD II monitors to run.
- Possible causes:
- drive conditions not satisfied
- KAM cleared
- damaged PCM
- Perform all self tests and check continuous codes.
ARE DTCS OTHER THAN P1000 SET?
Yes No REPAIR other DTCs according to appropriate pinpoint test before continuing. Go to AC2. - AC2 PERFORM MANUFACTURER-SPECIFIED DIESEL DRIVE CYCLE
- Perform diesel drive cycle. Refer to DIAGNOSTIC METHODS - 6.0L DIESEL .
IS P1000 CLEARED?
Yes No No issue; DTC P1000 cleared. Go to AC3. - AC3 VERIFY CERTAIN OPERATING CONDITIONS HAVE BEEN SATISFIED
- Using scan tool, monitor EOT, VPWR and GPTCM. If vehicle is started and EOT is below 55°C (131°F), VPWR must be between 11.5 V and 14 V until the glow plug duty cycle is 0%.
- Using scan tool, monitor MFDES and rpm at full load. MFDES must be above 37 MG/stroke for at least 12 seconds with rpm above 2300.
- Monitor MFDES at idle with vehicle warmed up. MFDES must be below 12 MG/stroke for at least 12 seconds.
WITH THE ABOVE CONDITIONS MET, IS P1000 CLEARED?
Yes No No issue; DTC P1000 cleared. COMPLETE all steps in DIAGNOSTIC SUBROUTINES - 6.0L DIESEL to determine DTC clearing issue.