Failure Code [Ca553] Rail Press High Error - Komatsu PC200-8M0 Shop Manual

302 Troubleshooting by failure code, Part 2

Failure code [CA553] Rail Press High Error

Failure code [CA553] Rail Press High Error

Action
Failure code
level
L01 CA553
q
Detail of failure Excessively high pressure trouble (1) has occurred in the common rail circuit.
Action of con-
q
None in particular
troller
q
Problem on Engine noise becomes louder at no or light load.
machine q Engine output lowers.
q Common rail pressure can be checked with monitoring function.
Related infor-
(Code 36400: Common rail pressure)
mation
q
Method of reproducing failure code: Start engine.
Cause
1 Defect in related system
Defective connection of ground
2
terminal
Defective common rail pressure
3
sensor system
PC200, 200LC, 220, 220LC-8M0
Rail Press High Error
Failure
(Engine controller system)
Procedure, measuring location, criteria and remarks
If another failure code is displayed, perform troubleshooting for it.
Connection of ground terminals may be defective. Check the following termi-
nals.
q
Ground terminal of machine ((–) terminal of battery)
q
Ground terminal of engine
q
Ground terminal of engine controller
q
Ground terminal of starting motor
Perform troubleshooting for failure code [CA451], [CA452]
SEN06134-00
37
40-302