Failure Code [Ca449] Common Rail Pressure High Error 2 - Komatsu PC88MR-10 Shop Manual

40 Troubleshooting
Troubleshooting by failure code (Display of code)

Failure code [CA449] Common Rail Pressure High Error 2

Action level Failure code
L03 CA449
Detail of
High voltage (exceeding the preset limit) occurs in common rail pressure sensor circuit.
failure
Action of
Limits engine output and runs engine(limits common rail pressure).
controller
Problem on
Engine output lowers.
machine
Signal voltage from common rail pressure sensor can be checked with monitoring
function. (Code: 36401 (V))
Related
Common rail pressure sensed by common rail pressure sensor can be checked with
information
monitoring function. (Code: 36400 (MPa))
Method of reproducing failure code: Turn starting switch to ON position.
No. Cause
Defective common rail
1
pressure sensor system
40-178
Common Rail Pressure High Error 2
Failure
(Engine controller system)
Procedure, measuring location, criteria and remarks
Perform troubleshooting for failure code [CA553].
(PC88MR-CA449-400-A-Z0-A)
PC88MR-10