Failure Code [Dafrmc] Can Discon (Monitor Detected) - Komatsu PC210-8 Shop Manual

UEN00242-01

Failure code [DAFRMC] CAN Discon (Monitor Detected)

User code Failure code
E0E DAFRMC
Contents of
• Machine monitor detected communication error in CAN communication circuit between pump con-
trouble
troller and engine controller.
Action of
• If cause of failure disappears, system resets itself.
machine monitor
Problem that
• Information may not transmitted normally by CAN communication and machine may not operate nor-
appears on
mally. (Trouble phenomenon depends on failed section.)
machine
Related infor-
• Method of reproducing failure code: Turn starting switch ON.
mation
Disconnection in wiring har-
ness (Disconnection in wiring
1
or defective contact in con-
nector)
Ground fault in wiring har-
2 ness (Short circuit with GND
circuit)
Possible causes
and standard
value in normal
state
Hot short (Short circuit with
3
24V circuit) in wiring harness
Defective CAN terminal
4 resistance (Internal short cir-
cuit or disconnection)
5 Defective machine monitor
8
CAN disconnection (Monitor detected)
Trouble
(Machine monitor system)
Cause
a Prepare with starting switch OFF, then carry out troubleshooting
Wiring harness between CM02 (female) (8),
(9) – C01 (female) (45), – CE02 (female)
(46), – K02 (female) (A)
Wiring harness between CM02 (female) (10)
– C01 (female) (64), – CE02 (female) (47), –
K02 (female) (B)
a Prepare with starting switch OFF, then carry out troubleshooting
Wiring harness between CM02 (female) (8),
(9) – C01 (female) (45), – CE02 (female)
(46), – K02 (female) (A), – N08 (male) (3)
Wiring harness between CM02 (female) (10)
– C01 (female) (64), – CE02 (female) (47), –
K02 (female) (B), – N08 (male) (10)
a Prepare with starting switch OFF, then turn starting switch ON
Wiring harness between CM02 (female) (8),
(9) – C01 (female) (45), – CE02 (female)
(46), – K02 (female) (A), – N08 (male) (3)
Wiring harness between CM02 (female) (10)
– C01 (female) (64), – CE02 (female) (47), –
K02 (female) (B), – N08 (male) (10)
a Prepare with starting switch OFF, then carry out troubleshooting
If causes 1 – 4 are not detected, machine monitor may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
Standard value in normal state/Remarks on troubleshooting
without turning starting switch ON.
without turning starting switch ON.
and carry out troubleshooting.
without turning starting switch ON.
K02 (male)
Between (A) – (B)
40 Troubleshooting
1
Resis-
Max. 1 z
tance
Resis-
Max. 1 z
tance
Resis-
Min. 1 Mz
tance
Resis-
Min. 1 Mz
tance
Max.
Voltage
5.5 V
Max.
Voltage
5.5 V
Resistance
120 ± 12 z
PC210, 230, 240-8