Key On Engine Running (KOER) Self-Test Procedure

KEY ON ENGINE RUNNING SELF-TEST PROCEDURE
NOTE:
- Make sure the A/C switch is OFF during KOER Self-Test. If the A/C switch is ON during this test, DTC P1464 will be indicated on the NGS tester.
- The brake pedal must be depressed and released after KOER Self-Test is initiated. If not performed, DTC P1703 will be indicated on the NGS tester.
- The steering wheel must be turned to the right and left after KOER Self-Test is initiated. If not performed, DTC P1650 will be indicated on the NGS tester.
- Start the engine and bring up to normal operating temperature before running the KOER Self-Test.




1. Perform the "New Generation Star (NGS) tester hook-up procedure".




2. Perform the "Reading DTC Procedure".




3. Move the cursor to KOER ON-DEMAND SELF-TEST. Press the trigger to enter this selection.
4. Start engine and bring up to normal operating temperature. Press START.
5. Follow operating instruction from the menu and perform Brake On/Off (BOO), O/D OFF switch and PSP cycling test, if equipped.
6. Note any KOER DTCs.
7. Press CANCEL several times to return to the main menu.