Technical Highlights
- Full ECM pinout (CM2220 E multi-connector architecture)
- 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
- Mass air flow sensor
- Water-in-fuel sensor
- Emission systems:
- EGR valve (motor + position feedback)
- Intake throttle actuator
- Communication:
- SAE J1939 data link
- Control systems:
- Accelerator pedal assembly (Teleflex / Williams types)
- 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 relays (dual fan option)
- Exhaust brake
- Power distribution:
- Battery supply & ground circuits
- Fuse-protected lines
- ECM power supply
👉 The diagram on page 1 clearly shows injector wiring, ECM connector layout (J1 & J2), and full sensor mapping, along with connector mating faces for all major components.
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)
- EGR System & Throttle Actuator
- 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 E
- Fuel System: Common Rail
- Emission System: EGR + Intake Throttle
- Document Type: Wiring Diagram
- Bulletin: 4022138-01
- Format: PDF
- Pages: 1
- Content: Electrical Schematics, Pinout, Injector & Sensor Systems
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