KOER Glow Plug Monitoring Self Test

Connect the NGS Tester to the DLC under the dash. 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 11.5 volts or go above 14 volts. Make sure that batteries are OK and the charging system is working properly.

- Perform the necessary vehicle preparation and visual inspection.
- Using a digital multimeter connected to the battery, monitor voltage. It may be necessary to raise rpm to maintain voltage.
- Start engine.
- Parking brake set, automatic transmission in PARK or manual transmission in NEUTRAL.
- Select VEHICLE & ENGINE SELECTION menu.
- Select NEW VEHICLE, YEAR & MODEL.
- Select DIAGNOSTIC DATA LINK.
- Select PCM - POWERTRAIN CONTROL MODULE.
- Select KOER GLOW PLUG MONITOR SELF TEST
- Follow instructions on screen.
- Maintain system voltage until test is complete.
- Record DTCs and follow appropriate pinpoint test.