The general meaning of the C1137 Code is available online and the meaning is set for all car engines what may not be similar to the manufacturer’s meaning. You should rely only manufacturer meaning and you cannot trust on other things. You should fix the car engine with the help of professional. The valves of individual cylinder are remained locked using a pair of arms that substitute the conventional engine’s roller-type rocker arm. The engine C1137 code is one of these arms follows the cam profile while the 2nd arm connects to the valves. During the normal engine operation the 2 arms are linked by a locking pin.