Cummins ISX CM870 Engine Control System User manual

Signature and ISX CM870 is an electronically operated fuel control system designed to optimize engine performance and reduce emissions. It controls various engine operations, including fueling, timing, and engine braking. The system utilizes multiple sensors to monitor engine parameters and provides diagnostic fault codes.

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Cummins ISX CM870 Engine Control System User Manual | Manualzz

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Key features

  • Electronically operated fuel control
  • Engine speed control
  • Exhaust emission reduction
  • Engine braking control
  • Diagnostic fault codes
  • Multiple sensor inputs
  • SAE J1939 and J1708 data link communication

Frequently asked questions

The base functions include fueling and timing control, limiting engine speed, reducing exhaust emissions, and optimizing engine performance. It also controls the engine brakes.

The ECM communicates through SAE J1939 and SAE J1708 data links.

The system uses various sensors, including intake manifold pressure sensor, intake manifold air temperature sensor, engine and camshaft position sensor, engine coolant temperature sensor, fuel shutoff solenoid, and more.

Fault codes are displayed through diagnostic lamps and can be accessed using a service tool.

INSITE™ is a service tool used for programming, troubleshooting, and calibrating the engine control system.
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