Failure Code [Ca351] Injectors Drive Circuit Error - Komatsu Galeo PC800-8 Shop Manual

SEN00790-02

Failure code [CA351] Injectors Drive Circuit Error

Action code Failure code
E10 CA351
Contents of
• There is error in injector drive circuit.
trouble
Action of
• Limits output and continues operation (limits common rail pressure).
controller
Problem that
appears on • Engine output lowers.
machine
Related
information
1 Defect in related system
2 Defective fuse
Disconnection in wiring har-
ness
3 (Disconnection in wiring or
defective contact in connec-
Possible causes
tor)
and standard
value in normal
state
Ground fault in wiring har-
ness
4
(Short circuit with GND cir-
cuit)
5 Defective engine controller
68
Injectors Drive Circuit Error
Trouble
(Engine controller system)
Cause Standard value in normal state/Remarks on troubleshooting
Check the code (injector system error code) that is displayed simulta-
neously. If another code is displayed, carry out troubleshooting for it.
Check fuse or circuit breaker on machine side directly for defect.
(If fuse is broken or circuit breaker is shut down, circuit probably has
ground fault.)
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between CE03 (female) (3) –
battery (+)
Wiring harness between CE03 (female) (1) –
chassis ground
aPrepare with starting switch OFF, then carry out troubleshooting with-
out turning starting switch ON.
Wiring harness between CE03 (female) (3) –
battery (+) and chassis ground
Wiring harness between CE03 (female) (1) –
chassis ground
aPrepare with starting switch OFF, then turn starting switch ON and
carry out troubleshooting.
CE03
Between (3) – (1)
40 Troubleshooting
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Voltage
20 – 30 V
PC800, 850-8