A full listing of diagnostic codes can be obtained from most General Motors dealerships. The Chevy Lumina has more than 500 diagnostic codes.
Code 12 just means that the ECM is going into diagnostic mode, this is NOT a trouble code! Code 12 should blink a couple of times pause then blink your trouble codes if you have any. If you have no trouble codes, it will resume to blink code 12 again.
You will need a diagnostic scanner to retrieve the codes.
To tell you to read the diagnostic codes.
Reading diagnostic codes is easy. The driver plugs the reader/scanner into the diagnostic port of the vehicle, and the scanner/reader will give a code if there is a problem, and tell them the type of problem.
When there are problems with a vehicle it is important to find out what is causing them. To find the codes, one needs a code reader to do it on their own, or run it to an automotive shop.
Scan the computer diagnostic codes using a GM code scanner.
You must use a Diagnostic code scanner that can erase trouble codes.
Hi, Two ways to clear the codes: 1) Scan Tool or Code Reader that can clear the codes. 2) Repair the issue causing the code and WAIT until diagnostic system runs AND passes the diagnostic that failed. Good Luck!
The average Nissan automobile has more than 400 diagnostic troubleshooting codes. You can obtain a complete list of diagnostic codes from most Nissan dealerships.
Diagnostic Trouble Codes.
Hi, I have found a list of codes for these vans and have placed a link to the list below this message. I believe there are more than 100 codes in all. Good Luck, Greg
The 2001 Lumina has the OBDII system. The only way to access the data is with an OBD2 reader (about $120 ) from any FLAPS (Friendly Local Auto Parts Store) Or you could take the car to a dealer and pay them to read the codes. Purchase the Haynes manual for the Lumina so you can look up the codes and figure out whats wrong.