Komatsu 114E-3 Series Shop Manual page 219

40 Troubleshooting
Possible
causes and
standard value
9 Defective engine controller
in normal state
Circuit diagram related to engine controller power supply
114E-3 Series
Causes
a Prepare with starting switch OFF, then turn starting switch ON and
START and carry out troubleshooting.
Between (3) – (1)
Standard value in normal state/Remarks on troubleshooting
J3 (Female) Starting switch
SEN00460-01
Voltage
ON Min. 24 V
START Min. 12 V
19