Key On Engine Running (KOER) Self-Test Procedure
KEY ON ENGINE RUNNING (KOER) SELF-TEST PROCEDURENOTE:
- 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.
- The O/D OFF switch must be pushed and released after KOER Self-Test is initiated. If not performed, DTC P1780 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 NGS tester hook-up procedure.
2. Perform the "Reading DTCs Procedure".
3. Move the cursor to KOER ON-DEMAND SELF-TEST.
4. Press the trigger to enter this selection.
5. Start engine and bring up to normal operating temperature. Press START.
6. Follow operating instruction from the menu and perform Brake ON/OFF (BOO), O/D OFF switch and PSP cycling test, if equipped.
7. Note any KOER DTCs.
8. Press CANCEL several times to return to the main menu.