KOER Glow Plug Monitoring Self-Test
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.
Connect the scan tool. Turn off accessories. Turn A/C off. If vehicle is equipped with an auxiliary powertrain control (RPM control), it must be turned off to perform self-test.
NOTE:
When running this self-test, battery voltage must not drop below 10 volts or go above 14 volts. Make sure that batteries are OK and the charging system is working properly. If necessary, press the accelerator pedal to maintain specified voltage.
- Perform the necessary vehicle preparation and visual inspection. Refer to QUICK TEST OPERATION
- Using a digital multimeter connected to the battery, monitor voltage. It may be necessary to raise RPM to maintain voltage.
- Start the engine.
- Parking brake set, automatic transmission in PARK or manual transmission in NEUTRAL.
- Refer to the manufacturer manual for scan tool instructions.
- Select KOER GLOW PLUG MONITORING SELF-TEST.
- Follow instructions on screen.
- Maintain system voltage until test is complete.
- Record DTCs and follow appropriate pinpoint test.