Tag Archive for ‘diagnostics’

How to use an OBD-II scanner to diagnose engine problems

OBD-II scanner courtesy of traderscity.com

The On-Board Diagnostic II (OBD-II) is a reporting system for engine problems, which is present on all vehicles manufactured after 1996. This system illuminates the Check Engine light when it detects a problem. Newer systems have a digital port which allows you to use a scanner to determine the nature of engine problems. These readouts are displayed as Diagnostic Trouble Codes (DTCs). While any auto repair shop can run an OBD-II scan on your vehicle for a fee, many auto parts stores will lend you a scanner free of charge, allowing you to diagnose the problem yourself. Running a scan is simple, and only requires a scanner, along with a pencil and paper to record DTCs.