Komatsu PC200-8M0 Shop Manual page 731

304 Troubleshooting by failure code, Part 4
Failure code [DHS4MA] Bucket CURL PPC Press Sensor Abnormality
Cause
Hot short circuit in wiring harness
5
(contact with 24 V circuit)
6 Defective pump controller
Circuit diagram related to bucket curl PPC pressure sensor
PC200, 200LC, 220, 220LC-8M0
Procedure, measuring location, criteria and remarks
1. Turn starting switch to OFF position.
2. Disconnect connector P01.
3. Connect T-adapters to female side of connector P01.
4. Turn starting switch to ON position.
Between P01 (female) (2) and ground
If no failure is found by above checks, pump controller is defective. (Since this
is an internal defect, troubleshooting cannot be performed.)
SEN06136-00
Voltage Max. 1 V
7
40-304