How to Set Diagnostic Test Mode II (Heated Oxygen Sensor 1 Monitor)
WARNING: This page is about a different car, the 2004 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
- Set the ECM in Diagnostic Test Mode II (Self-diagnostic results). Refer to HOW TO SET DIAGNOSTIC TEST MODE II (SELF-DIAGNOSTIC RESULTS) .
- Start Engine.
ECM has entered to Diagnostic Test Mode II (Heated oxygen sensor 1 monitor).
ECM will start heated oxygen sensor 1 monitoring from the bank 1 sensor.