CAN Bus J1939 Genset Decoder Module


CAN Bus J1939 Generator Set Decoder Module

KCU-04 decodes Can Bus SAE-J1939 protocol to provide sensing information for genset controller. Information about engine coolant temperature, engine oil pressure, engine speed, and other generator warning message such as low fuel levvel, low battery voltage, and engine over speed.




  • Supports and decodes CAN Bus SAE-J1939 protocol to provide controller with necessary sensing information
  • Replace coolant temperature, oil pressure, engine speed(MPU) sender
  • Provide warning message
  • Equipped with LED status indicator
  • J1939 Decode Item :
Engine coolant temperature Range : -40 to +210 °C , once per second
Engine oil pressure Range : 0 to 1000 kPa , once per 0.5 second
Engine speed Range : 0 to 8031 RPM , Once Per 0.5 Second
Warning Message Over Speed, Low Speed, Low oil pressure, High coolant temperature, Low fuel level, Low Battery Voltage and Other, Warning Message, Once Per Second


Power Input 5 Vdc
Power Consumption < 1.0 watt
Operating Temperature -20 to +70 °C
Relative Humidity Max. 95%
CAN Bus Communication Protocol SAE-J1939
Dimension 35.0 (L) x 23.0 (W) x 65.0 (H) mm
Weight 27.6 g +/-2%

CAN Bus Network Diagram

Diagram and Dimensions