Performing CCT Self-Test

NOTE: If KOER DTC P1464 is set during KOER cylinder contribution self-test, ensure A/C heater control switch is off and repeat KOER cylinder contribution self-test. See PERFORMING CCT SELF-TEST . If KOER DTC P1464 resets, go to TEST FA, step 2) to check for a short to voltage.

To perform self-test, turn ignition off. Ensure test equipment is properly attached. If vehicle is equipped with an auxiliary powertrain control system (RPM control), it must be turned off before performing self-test. Using NGS tester, perform the following steps:

Select VEHICLE & ENGINE SELECTION menu.
Select VEHICLE, YEAR & MODEL.
Select DIAGNOSTIC DATA LINK.
Select PCM - POWERTRAIN CONTROL MODULE.
Select DIAGNOSTIC TEST MODE.
Select KOER CYLINDER CONTRIBUTION SELF-TEST.
Start engine and allow it to idle.
Follow operating instructions from NGS tester menu.
After test has been completed, cycle ignition off before performing other self-tests or driving vehicle.