Performing Self-Test

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2003 Ford RV Cutaway, 2003 Ford Pickup, 2003 Ford F550 Super Duty, 2003 Ford F450 Super Duty, and 2003 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When performing this self-test, ensure battery voltage is maintained at 10-14 volts, and that batteries and charging system are okay. If necessary, press accelerator pedal to maintain specified voltage.

To perform self-test, turn ignition off. Ensure test equipment is properly attached and that all accessories and A/C are off. If vehicle is equipped with an auxiliary powertrain control system (RPM control), it must be turned off before performing self-test. Using NGS tester, perform the following steps:

Start engine and allow it to idle.
Select VEHICLE & ENGINE SELECTION menu.
Select VEHICLE, YEAR & MODEL.
Select DIAGNOSTIC DATA LINK.
Select PCM - POWERTRAIN CONTROL MODULE.
Select DIAGNOSTIC TEST MODE.
Select KOER GLOW PLUG MONITOR SELF-TEST.
Follow operating instructions from NGS tester menu.
Maintain system voltage until test is complete.
Record DTCs and perform appropriate system test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS .