Why wont my OBD2 connect?

Why wont my OBD2 connect?

Check for corrosion or debris in the plug. Check the cable itself for damage, and check the plug at the scanner too. Finding a problem with the plug or cable is easy to fix, most good scanners will have a detachable and therefore replaceable OBD cable. Just go ahead and buy a new cable, they’re not expensive.

CAN you use a code reader on a car that won’t start?

If the car is cranking, but won’t start, use an OBD2 scanner to find out if there are any stored trouble codes in the trouble code memory. Most cars after 1998 have an OBD2 system which makes it very easy to read the trouble codes. You can find the information about the trouble codes in OBD2 codes.

How to diagnose a problem with a car code reader?

Diagnose car problems without going to a mechanic with an auto code reader. Simply plug it into the car’s computer system, then interpret the trouble code readout. Plug your car code reader into the diagnostic link connector under the dash (engine off). Then start the vehicle and follow the auto code reading procedure in the instruction manual.

Can you read your OBD-II code on a car?

If you’re resourceful enough to use your car’s OBD system, then you’re way ahead of the game, but let’s start with a refresher on the OBD-II code ‘s diagnostics, error messages, scan ports, and more. What Is OBD? Since the mid-1990s vehicles have had a built-in troubleshooting system known as OBD.

How are error codes stored in a car?

If they go out of that range, the computer makes a note of it and stores this as an error code. In a modern car, there can be hundreds of error codes, each one pointing to a specific issue. A mechanic—professional or skilled do-it-yourselfer—can access these codes to measure the overall health of the engine.

Where can I find the trouble code on my car?

Go to the car code reader/scan tool manufacturer’s Web site to see if it has information on your trouble code. Take advantage of Internet forums. Just search for your car’s model and add “forum” to the search term.