Cummins ISF 2.8 CM2220 AN Wiring Diagram | ECM Pinout, Injectors, Sensors, DEF System & J1939 Network (4022139-01)

Technical Highlights

• Full ECM pinout (CM2220 AN multi-connector architecture J1 & J2)
• Injector control:
  • Driver circuits for cylinders 1–4
  • Injector solenoid signal & return mapping
• Fuel system:
  • Fuel rail pressure sensor
  • Fuel pump actuator
• Sensor network:
  • Crankshaft position sensor
  • Camshaft position sensor
  • Intake manifold pressure & temperature
  • Barometric pressure sensor
  • Engine coolant temperature
  • Engine oil pressure switch
  • Magnetic/digital vehicle speed sensor
• Emission & aftertreatment systems:
  • DEF dosing unit & dosing valve
  • SCR inlet & outlet temperature sensors
  • NOx sensor (aftertreatment outlet)
  • DEF tank level & temperature sensor
  • DEF line heaters (1–4 circuits)
  • DEF pressure sensor (5V supply / signal / return)
  • Aftertreatment fluid controller (53-pin & 86-pin connectors)
• Communication:
  • SAE J1939 data link (CAN High / Low)
• Control systems:
  • Accelerator pedal assemblies (Teleflex / Williams)
  • Cruise control & PTO switches
  • Torque limit & interlock switches
• Diagnostic systems:
  • Wait-to-start lamp
  • Red stop lamp
  • Amber warning lamp
  • Malfunction indicator lamp (MIL)
• Actuators:
  • Grid heater
  • Fan clutch
  • Exhaust brake
• Power distribution:
  • Battery supply & ground circuits
  • Fuse-protected lines
  • ECM power supply

👉 The diagram on page 1 clearly shows aftertreatment DEF system wiring, ECM connectors (J1/J2), and full injector + sensor mapping, including the 53-pin and 86-pin DEF controller interfaces.

Table of Content

• ECM Connector Layout (J1 Engine / J2 OEM)
• Injector Driver Circuits (1–4 Cylinders)
• Common Rail Fuel System Wiring
• Sensor Network (Pressure / Temperature / Position)
• Aftertreatment DEF System (SCR, NOx, Tank, Heaters)
• Accelerator & Control Systems
• Diagnostic Lamps & Indicators
• Data Link Communication (J1939)
• Actuator Control Systems
• Power Supply & Ground Distribution

File Information

• Manufacturer: Cummins
• Engine Model: ISF 2.8
• ECM Type: CM2220 AN
• Fuel System: Common Rail
• Emission System: SCR / DEF Aftertreatment
• Document Type: Wiring Diagram
• Bulletin: 4022139-01
• Format: PDF
• Pages: 1
• Content: Electrical Schematics, Pinout, Injector, Sensor & DEF Systems