Common Powertrain Controller

Common Powertrain Controller - Ops

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)

  1. Connector 1
  2. Connector 2
  3. Connector 3
  4. Connector 4

Fig. 1, Common Powertrain Controller

Note:
Parent topic: DDEC System
Document Number: 0000022328
Manual Publication Date: 2024-01-05
Topic Publication Date: 2023-12-10