Topdon AL500B Manuel De L'utilisateur page 25

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
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