SPN 1071/FMI 5 This fault code indicates that there is an open circuit. Check as follows: Check for multiple codes. If SPN 647/5, SPN 1072/5…
Category: DD15
SPN 1071/FMI 4 This fault indicates that there is a short to ground. Check as follows: Turn the ignition OFF. Disconnect the fan control solenoid.…
SPN 1072/FMI 5 This fault code indicates that the Jake Brake Stage 1 circuit failed open. Check as follows: Disconnect the front injector valve cover…
SPN 1072/FMI 4 This fault code indicates that the Jake Brake Stage 1 circuit failed low. Check as follows: Disconnect the front injector valve cover…
SPN 1073/FMI 4 This fault code indicates that the Jake Brake Stage 2 circuit failed low. Check as follows: Disconnect the front injector valve cover…
SPN 1077/FMI 5 SPN 1077/FMI 5 indicates a quantity control valve current too low. Check as follows: Disconnect the quantity control valve. Measure the resistance…
SPN 1073/FMI 5 This fault code indicates that the Jake Brake Stage 2 circuit failed open. Check as follows: Disconnect the rear injector valve cover…
SPN 1077/FMI 15 The fault condition is typically related to an internal or external leakage of the high pressure fuel system. The MCM monitors the…
SPN 1077/FMI 14 The fault condition is typically related to an internal or external leakage of the high pressure fuel system (too high, Leak Down…
SPN 1077/FMI 7 The fault condition is typically related to an internal or external leakage of the high pressure fuel system. The MCM monitors the…