Operators Manual

Table Of Contents
Figure 23. Engine Emission Label - EPA07
NOTE: Examples are shown as EPA07. Each EPA10, GHG14 and GHG17
unit will have a similar label with the same information.
Common Powertrain Controller
The Common Powertrain Controller (CPC) communicates with any other Motor
Control Module (MCM) unit installed on the vehicle over the J1939 data link.
Data for specific applications is stored in the CPC. These include idle speed,
maximum running speed, and speed limitation. From these data, instructions are
computed for controlling the engine and transmitted to the CPC via the proprietary
datalink.
The CPC receives data from the following sources:
The operator (accelerator pedal position, engine brake switch)
Other electronic control units (for example, the anti-lock brake system)
The MCM (oil pressure and coolant temperature)
Detroit Diesel Electronic Controls (DDEC) System
60 All information subject to change without notice.
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