Product Details

Cummins ISX / Signature (CM870) Electronic Control System Manual
Item: TM1502
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Factory printed manual.  Factory Cummins electronic control system manual.  Cover fuel control system, fault code diagnostics and more.  Diagnostic procedure list "walks" the technician through the complete fault code diagnostic & repair procedure.

Engine: ISX & Signature

Control Module: CM870



  • Introduction
  • Engine Identification
  • Familiarization
  • Troubleshooting Symptoms (including new format)
  • Troubleshooting Steps
  • Electronic Engine Controls
  • Specifications
  • Pin Locations
  • Volt / Ohm Readings
  • Fault Code list
  • Diagnostic Procedures & Repair (730+ pages)

Due to the number of volumes included in this part number the shipping cost will increase if two shipping boxes are needed.


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