Press [OK] to select the oxygen sensor you want to view "Bank 1-Sensor 1" or "Bank 1-Sensor 2" .(See Figure 3.7.2) Figure 3.7.2 On-Board Monitoring This On-Board Monitoring (See Figure 3.8.1) retrieves test results for emission-related powertrain components and systems (such as catalyst monitor B1, VVT monitor Bank 1, Sensor Heater, etc.) that are not continuously monitored. The tests available are determined by the vehicle manufacturer. Figure 3.8.1 EN | 25