KOER Cylinder Contribution 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 tests.
- Perform the necessary vehicle preparation and visual inspection.
- Start engine.
- Select VEHICLE & ENGINE SELECTION menu.
- SELECT NEW VEHICLE, YEAR & MODEL.
- Select DIAGNOSTIC DATA LINK.
- Select PCM - POWERTRAlN CONTROL MODULE.
- Select DIAGNOSTIC TEST MODE.
- Select KOER cylinder contribution self test.
- Follow instructions on screen.
- After test, cycle the key to OFF before running other tests or driving vehicle.