Topdon OBDCAN Serie Mode D'emploi page 14

Press [OK], a screen similar to Figure 5-3 will appear:
It mainly includes the following functions:
1. Read Codes
This option is used to identify which section of the emission control
system has malfunctioned.
2. Erase Codes
After reading the retrieved codes from the vehicle and certain repairs
have been carried out, you can use this function to erase the codes
from the vehicle. Before performing this function, please be sure the
vehicle's ignition key is in the ON position with the engine off.
Notes:
• Before performing this function, make sure to retrieve and record the
trouble codes.
• After clearing, you should retrieve trouble codes once more or turn
ignition on and retrieve codes again. If there are still some trouble codes
in the system, please troubleshoot the code using a factory diagnosis
guide, then clear the code and recheck.
3. I/M Readiness
I/M refers to Inspection and Maintenance that is legislated by the
Government to meet federal clean-air standards. I/M Readiness
indicates whether or not the various emissions-related systems on
the vehicle are operating properly and are ready for Inspection and
Ultrascan OBDCAN Series User's Manual
Figure 5-3
EN
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