Failure Code [Ca111] Ecm Critical Internal Failure - Komatsu Galeo PC800-8 Shop Manual

SEN00790-02

Failure code [CA111] ECM Critical Internal Failure

Action code Failure code
E10 CA111
Contents of
• Incompatibility of data occurred in engine controller.
trouble
Action of
• None in particular.
controller
Problem that
appears on • Operations are continued, but engine may stop during operations or may not start in stopped state.
machine
Related
information
1 Defective circuit breaker 7
Disconnection in wiring
harness
2 (Disconnection in wiring or
defective contact in con-
nector)
Possible causes
and standard
value in normal
Ground fault in wiring har-
state
ness
3
(Short circuit with GND cir-
cuit)
4 Defective engine controller
16
ECM Critical Internal Failure
Trouble
(Engine controller system)
Cause Standard value in normal state/Remarks on troubleshooting
Circuit breaker may be defective. Check it directly.
(If circuit breaker is turned OFF, 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