Komatsu Galeo BR380JG-1E0 Shop Manual page 645

40 Troubleshooting
Defective CAN termi-
Possible
nal resistance (Inter-
causes and 4
nal short circuit or
standard value
disconnection)
in normal state
Defective engine
5
controller
Circuit diagram related to CAN communication
BR380JG-1E0
Cause
a Prepare with engine starting switch OFF, then carry out troubleshooting
without turning engine starting switch ON.
If causes 1 – 4 are not detected, engine controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
Standard value in normal state/Remarks on troubleshooting
K02 (male), P03 (male)
Between (A) – (B)
SEN02093-00
Resistance
120 ± 12 z
37