Test Procedure
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Ford RV Cutaway, 2007 Ford Pickup, 2007 Ford F550 Super Duty, 2007 Ford F450 Super Duty, and 2007 Ford Econoline. However, it is still accessible from the selected car via links, so may be relevant.
- AC1 DIAGNOSTIC TROUBLE CODE (DTC) P1000 NOTE: If the voltage to the powertrain control module (PCM) is disconnected, DTC P1000 is set until the OBD monitors have run and cleared.
- DTC P1000 indicates that the operating conditions have not been satisfied for all of the OBD monitors to run.
- Key ON, engine OFF.
- Carry out the self-test.
- Are any DTCs present other than P1000?
Yes No DISREGARD the current diagnostic trouble code (DTC) at this time. DIAGNOSE the next DTC. GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS . GO to AC2. - AC2 CARRY OUT THE DIESEL DRIVE CYCLE TEST
- Carry out the diesel drive cycle test. Refer toON BOARD DIAGNOSTIC (OBD) DRIVE CYCLE .
- Is the P1000 cleared?
Yes No No issue, DTC P1000 cleared. GO to AC3. - AC3 VERIFY CERTAIN OPERATING CONDITIONS HAVE BEEN SATISFIED
- Key ON, engine OFF.
- Access the PCM and monitor the EOT, VPWR and GPCTM PIDs.
- If the vehicle is started and the EOT is less than 55°C (131°F), VPWR must be between 11.5 and 14 volts until the glow plug duty cycle is 0%.
- Access the PCM and monitor the MFDES and RPM PIDs.
- Operate the engine at full load. At full load the MFDES must be greater than 37 mg/stroke for at least 12 seconds with the engine speed greater than 2,300 RPM.
- Access the PCM and monitor the MFDES PID.
- Allow the engine to idle at the normal operating temperature. The MFDES must be less than 12 mg/stroke for at least 12 seconds.
- With the above conditions met, is the P1000 cleared?
Yes No No issue, DTC P1000 cleared. REFER to the DIAGNOSTIC SUBROUTINES article. CARRY OUT the Diagnostic Subroutines to determine the DTC clearing issue.