Cummins ISBe CM800 Wiring Diagram ECM Pinout, Sensors, Accelerator, PTO & J1587 Network (3666483-02)

Technical Highlights

• Full ECM pinout (38-pin ECM + 89-pin OEM connector)
• Accelerator system:
  • Dual accelerator position sensors
  • Remote accelerator pedal / lever
  • 5V supply, signal, and return circuits
• Sensor network:
  • Engine coolant level sensor
  • Oil pressure & temperature
  • Intake manifold pressure & temperature
• Control systems:
  • PTO on/off switch
  • Cruise control / idle switches
  • Fan control switch
  • Torque limit control switch
• Communication:
  • SAE J1587 data link
  • SAE J1939 interface (limited integration)
• Diagnostic systems:
  • Wait-to-start lamp
  • Red stop lamp
  • Yellow warning lamp
• Actuators:
  • Intake air heater relays
  • Exhaust brake control
  • Starter lockout relay
• Power distribution:
  • Battery supply and ground circuits
  • Fused power lines
• Tachometer outputs:
  • High-side and low-side tach signals

👉 The diagram on page 1 shows a full ECM-centered layout connecting OEM inputs, sensor circuits, and control systems, with clear separation between Cummins responsibility and OEM responsibility wiring zones.

Table of Content

• ECM Connector Layout (CM800)
• Accelerator Pedal & Remote Control System
• Sensor Network (Pressure / Temperature / Level)
• PTO, Cruise & Control Switch Circuits
• Diagnostic Lamps & Outputs
• Data Link Communication (J1587 / J1939)
• Actuator Control Systems
• Tachometer Output Circuits
• Power Supply & Ground Distribution

File Information

• Manufacturer: Cummins
• System: ISBe CM800 Engine Management
• ECM Type: CM800
• Document Type: Wiring Diagram
• Bulletin: 3666483-02
• Format: PDF
• Pages: 1
• Content: Electrical Schematics, Pinout, Sensor & Control Systems