4. Perform KOEO On-Demand Self-Test

4. Perform KOEO On-Demand Self-Test

Purpose:

The purpose of this test is to determine if the PCM has detected any fault conditions that would cause a performance problem.

Perform KOEO On-Demand Test

^ Use the scan tool.
^ DTCs set during this test are current faults.






Recommended Procedure:

Note: To ensure that the DTC is a hard fault first clear Continuous DTCs (be sure to record all DTCs and Freeze Frame information before clearing). Rerun KOEO On-Demand Self Test. If the DTC is set again a hard fault has occurred.

Connect the scan tool. Turn off all accessories. If the vehicle is equipped with an auxiliary powertrain control module (APCM) it must be turned off to perform the self-test.

^ Perform the necessary vehicle preparation and a visual inspection.
^ Refer to the scan tool operating manual for instructions.
^ Key on engine off.
^ Wait 4 seconds for the transmission control module (TCM) powertrain control module (PCM) and the fuel injector control module (FICM) to initialize.
^ Follow the operating instructions from the diagnostic menu.
^ Perform a KOEO On Demand Self-Test.
^ Record the DTCs and Freeze Frame information and refer to the appropriate pinpoint test.

Tools Required:

Scan tool