Komatsu PC200-8M0 Shop Manual page 743

304 Troubleshooting by failure code, Part 4
Failure code [DHSDMA] Bucket Dump PPC Press Sensor Abnormality
Cause
6 Defective pump controller
Circuit diagram related to bucket dump PPC pressure sensor
PC200, 200LC, 220, 220LC-8M0
Procedure, measuring location, criteria and remarks
If no failure is found by above checks, pump controller is defective. (Since this
is an internal defect, troubleshooting cannot be performed.)
SEN06136-00
19
40-304