Hard Code

HARD CODE

Any Diagnostic trouble codes (or One-Trip failure or drive cycle) that comes back within one cycle of the ignition key is a "hard" code. This means that the problem is there every time the TCM checks that circuit or function.

NOTE: NOT ALL EURO STAGE III OBD CODES WILL NOT SET WITH JUST THE IGNITION KEY ON. THEY MUST BE DRIVEN, IN THE VEHICLE START AND DRIVE CYCLE(S) SUCH THAT ALL DIAGNOSTIC MONITORS HAVE RUN.