Topdon AL500B Manuel De L'utilisateur page 24

Press [OK] to check the freeze frame stored in the ECU. (See
Figure 3.6.2)
● Once the DTCs are erased, the freeze frame will also be
cleared.
Figure 3.6.2
O2 Sensor Test
The O2 Sensor Test (See Figure 3.7.1) lets you retrieve and
view O2 sensor monitor test results.
Figure 3.7.1