Komatsu 80001 - Failure Code [CA111] ECM Critical Internal Failure

SEN04119-01 40 Troubleshooting
16 PC130-8
Failure code [CA111] ECM critical internal failure 1
User code Failure code
Trouble
ECM critical internal failure
(Engine controller system)
E10 CA111
Contents of
trouble
• Abnormality occurred in controller.
Action of
controller
• None in particular.
Problem that
appears on
machine
• Engine runs normally but it may stop during operation or may not be able to start.
Related
information
Possible causes
and standard
value in normal
state
Cause Standard value in normal state/Remarks on troubleshooting
1 Defective fuse
Check fuse or circuit breaker on machine side directly for defect.
(If fuse is broken or circuit breaker is turned OFF, circuit probably
has ground fault.)
2
Defective power supply cut-
out relay
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Wiring harness between CE02 (female) (55)
– (32)
Resis-
tance
185 –
265 z
3
Disconnection in wiring
harness
(Disconnection in wiring or
defective contact in connec-
tor)
a Prepare with starting switch OFF, then carry out troubleshoot-
ing without turning starting switch ON.
Wiring harness between CE02 (female) (55)
– R23 (1)
Resis-
tance
Max. 1 z
Wiring harness between CE02 (female) (55)
– R24 (1)
Resis-
tance
Max. 1 z
Wiring harness between CE02 (female) (32)
– R23 (2)
Resis-
tance
Max. 1 z
Wiring harness between CE02 (female) (32)
– R24 (2)
Resis-
tance
Max. 1 z
Wiring harness between CE03 (female) (1)
– T15
Resis-
tance
Max. 1 z
Wiring harness between CE03 (female) (3)
– R23 (5)
Resis-
tance
Max. 1 z
Wiring harness between CE03 (female) (3)
– R24 (5)
Resis-
tance
Max. 1 z
Wiring harness between R23 (female) (3) –
battery (+)
Resis-
tance
Max. 1 z
Wiring harness between R24 (female) (3) –
battery (+)
Resis-
tance
Max. 1 z