truck manuals

Cummins ISB 6.7 Wire Diagram CM2250


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Cummins ISB 6.7 Wire Diagram CM2250

Factory printed Cummins ISB 6.7 fold-out wire diagram for the engine control system.

Cummins has included the ECM related sensors (and pin-outs) along with parameters.  This allows the mechanic to quickly resolve the problem.  This wire diagram also shows engine fault codes, the reason for the fault & the fault code effects.

Cummins ISB 6.7 Wire Diagram CM2250


ISB 6.7

Control Module:



  • ECM pin locations
  • Wire diagram (color-coded)
  • Connectors
  • Each controlled or controlling sensor, etc.
  • Shows Difference In Cummins responsibility & truck manufacturer responsibility connections
  • Electrical specifications & parameters (volts-amps-ohm readings)
  • Fault codes, fault reasons, fault effects

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Cummins ISB 6.7 Wire Diagram CM2250