1
Plug an on-board diagnostic (OBD) scanner in to the test port below the dash. The test port, also named an assembly line car diagnostic software link (ALDL), accesses the trouble codes stored inside the engine's laptop. Diagnostic scanners are obtainable at auto components retailers also as big-box retailers with an automotive section.
2
Turn the crucial inside the ignition for the "On" position but usually do not crank the engine. Follow the prompts on the scanner's screen, entering the requested details such as the year and make of one's truck.
3
Pull the engine codes. Once all codes have run, select the option to clear them. This eliminates the codes from the Dodge's pc.
