Komatsu PC200-8M0 Shop Manual page 735

304 Troubleshooting by failure code, Part 4
Failure code [DHS9MA] Boom Lower PPC Press Sensor Abnormality
Cause
Hot short circuit in wiring harness
5
(contact with 5 V/24 V circuit)
6 Defective pump controller
Circuit diagram related to boom lower PPC pressure sensor
PC200, 200LC, 220, 220LC-8M0
Procedure, measuring location, criteria and remarks
1. Turn starting switch to OFF position.
2. Disconnect connector P02.
3. Connect T-adapters to female side of connector P02.
4. Turn starting switch to ON position.
Between P02 (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
11
40-304