Dodge Cummins Diesel Forum banner
  • Hey everyone! Enter your ride HERE to be a part of this month's Ride of the Month Challenge!

1 - 1 of 1 Posts

·
Registered
Joined
·
451 Posts
Discussion Starter · #1 ·
i don't know if this is a stupid questions or not but does there have to be a check engine light for an error code to be tripped?
 
1 - 1 of 1 Posts
Top