Caterpillar 3406E ECM Schematic


Cat factory ECM wire schematic for Cat C10, C12, C15, C16 & 3406E engines
  • Wire diagram
  • Wire colors
  • ECM pin numbers & location
  • Sensor torques
  • Fault codes
  • Test procedures
For engines with serial numbers: CPD, 8YF, EGH, 1MM, 2KS, 2WS, 3CS, 6NZ, 7CZ, 9NZ

Caerpillart C10, C12, C15, C16


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