Topdon AL500B Manuel De L'utilisateur page 18

out. Once confirmed, the emission-related data stored
in the ECU will be reset or cleared, WHICH IS NOT
RETRIVEABLE.
● DO NOT START UP THE ENGINE WHILE CLEARING
THE CODES.
2. After determining that all repairs have been completed,
press [OK] to clear or reset the emission-related diagnostic
data. (See Figure 3.3.2)
Figure 3.3.1
Figure 3.3.2