Boom Lower Is Not Displayed Correctly With Monitoring Function - Komatsu PC88MR-10 Shop Manual

40 Troubleshooting
Troubleshooting of electrical system (E-mode)
E-42 Boom LOWER is not displayed correctly with monitoring
function
(PC88MR-FFR-400-A-Z0-A)
"Boom LOWER" is not displayed correctly with monitoring function.
Failure
Related
Monitoring code: 01900 Pressure Switch 1
information
No. Cause
Defective boom
LOWER PPC oil
pressure sensor system
1
(internal open or short
circuit)
40-438
Procedure, measuring location, criteria, and remarks
Perform troubleshooting for failure codes [DHS9MA].
PC88MR-10