4. Select a function to continue. Note: Depending on the vehicle make, some functions may not be available. Typical function options may include: • DTC & Freeze Frame Data • I/M Readiness • Live Data • O2 Sensor Monitoring • On-Board Monitoring • Component Testing • Vehicle Information DTC & FFD (Freeze Frame Data) This function helps retrieve and clear DTCs stored in the vehicle's Electronic Control Unit (ECU) and displays FFD of the emission-related systems. 1. Read DTCs This function displays the DTCs retrieved from the emission-related systems. 2. Clear DTCs This function allows you to clear the DTCs retrieved from the emission- related systems. 3.
FFD This function takes a snapshot of the data and operating conditions when an emission-related fault occurs. Note: 1. The procedure of clearing DTCs should be performed after the required repair has been carried out. Once confirmed, DTCs and FFD stored in the ECU will be cleared. 2. DO NOT START UP THE ENGINE WHILE CLEARING DTCS. I/M (Inspection and Maintenance) Readiness This function checks whether or not the various emission-related systems on the vehicle are operating properly, and are ready for I/M testing. It can also be used to check the monitor running status and to confirm 27