Cummins ISBe ISDe CM2150 Wiring Diagram | ECM Pinout, Injectors, Sensors & J1939 J1587 Network (4021625-01)

Technical Highlights

• Full ECM pinout (CM2150 multi-connector architecture)
• Common rail fuel system:
  • Fuel rail pressure sensor
  • Fuel pump actuator
• Injector control:
  • 4-cylinder and 6-cylinder solenoid driver circuits
• Advanced sensor network:
  • Crankshaft & camshaft position sensors
  • Intake manifold pressure & temperature
  • Barometric pressure sensor
  • Coolant temperature sensor
  • Water-in-fuel sensor
  • Engine oil pressure switch
• Control systems:
  • Accelerator pedal (dual-channel position sensors)
  • Cruise control & PTO switches
  • Engine protection override
• Communication:
  • J1939 data link
  • J1587 data link
• Diagnostic systems:
  • Wait-to-start lamp
  • Red stop lamp
  • Amber warning lamp
• Actuators:
  • Fuel pump actuator
  • Intake air heater relay
  • Fan clutch
• Power distribution:
  • ECM battery supply and return
  • Fuse-protected circuits

👉 The diagram on page 1 clearly shows injector driver circuits, sensor mapping, and ECM connector layouts, along with detailed connector pinouts and mating faces for all major components.

Table of Content

• ECM Connector Layout (CM2150)
• Injector Driver Circuits (4 & 6 Cylinder)
• Common Rail Fuel System Wiring
• Sensor Network (Pressure / Temperature / Position)
• Accelerator & Control Systems
• Diagnostic Lamps & Indicators
• Data Link Communication (J1939 / J1587)
• Actuator Control Systems
• Power Supply & Ground Distribution

File Information

• Manufacturer: Cummins
• System: ISBe / ISDe CM2150 Engine Management
• ECM Type: CM2150
• Fuel System: Common Rail
• Document Type: Wiring Diagram
• Bulletin: 4021625-01
• Format: PDF
• Pages: 1
• Content: Electrical Schematics, Pinout, Injector & Sensor Systems