Using Scan Tools to Read OBD-II Codes
Grade 12th Grade · Career & Technical Education · 45 min
What's Included
Learning Objective
I can use a scan tool to connect to the DLC, retrieve specific DTCs, and determine the readiness status of OBD-II monitors.
Warm-Up Video
1A Auto: Repair Tips & Secrets Only Mechanics Know · 3:03
How to Check Readiness Monitors - Emission Inspection
Guided Notes
3 key concepts
- 1
When the battery is disconnected, all monitors are cleared, which can affect emission inspections.
- 2
A scan tool can be used to check if the monitors are ready before going to a shop for a state inspection.
- 3
The DLC connector is typically located underneath the driver's side and is used to connect the scan tool to the car's computer.
Practice Questions
11 questions · Short answer
Exit Ticket
Quick comprehension check
“Using a scan tool, connect to the DLC of a car with the ignition on. After the scan tool has checked the monitors, what information is displayed regarding DTCs, the number of completed readiness monitors, and the number of non-completed readiness monitors?”
Complete Lesson Package
Get all 3 ready-to-use resources:
