What is the code 12?
What is the code 12? Also known as the “invalid transaction” code, a credit card error code 12 is given when the issuing bank does not accept a transaction. That's super vague, but it's true. The issuing bank is the bank that gave the customer their card, and a declined 12 code is sort of a catch-all for error codes. Where are the trouble codes on a 1998 Dakota? Same as for a pre-1997 Dakota (see below) except the trouble codes will display in the odometer area instead of flashing the check engine light. How to get the codes on...