KOEO/KOER Output State Control (OSC)

Connect the diagnostic tool. Turn off all accessories. Turn the air conditioning (A/C) off. If the vehicle is equipped with a power take-off (PTO) system or auxiliary idle control, it must be turned off to carry out the self-tests. The outputs will be limited during KOEO output state control.

• Carry out the necessary vehicle preparation and visual inspection. Refer to QUICK TEST OPERATION. 
• Refer to the manufacturer's manual for diagnostic tool instructions.
• Select KOEO/KOER output state control.
• Follow any special instructions on the screen.
• Use the diagnostic tool to access output PIDs.
• Cycle the output state on the exhaust gas recirculation (EGR), injection control pressure (ICP), fuel injectors, visctronic drive fan (VDF), variable geometry turbocharger (VGT), engine RPM, and fuel pump.
• Select PIDs.
• Activate OSC.
• After the test, cycle the key to the OFF position before running other tests or driving the vehicle.
• Clear all of the DTCs.