What do the codes mean on a Caterpillar C15?
What do the codes mean on a Caterpillar C15? Code “27” indicates an engine coolant problem, and codes “28” and “32” alert the operator that the electronic control module is having a problem reading the throttle position. What happens when fault code 56 is set? Fallback When Fault Code 56 is set the following conditions occur: Red “Service” light illuminates and an “F” flashes in the gear display. Fault is stored in TECU memory. The operation mode changes to “AutoShift Fallback” mode. If this fault occurs while moving, the transmission remains in current gear and the clutch opens when the...