Failure Code [Da2Rmc] Can Discon (Pump Controller Detected) - Komatsu Galeo PC138US-8 Shop Manual

SEN02465-01

Failure code [DA2RMC] CAN discon (Pump controller detected)

User code Failure code
E0E DA2RMC
Contents of • Pump controller detected communication error in CAN communication circuit between machine
trouble monitor and engine controller.
Action of • Continues operation with information of CAN communication just before detection of error.
controller • If cause of failure disappears, system resets itself.
Problem that
• Information may not transmitted normally by CAN communication and machine may not operate
appears on
normally. (Trouble phenomenon depends on failed section.)
machine
Related
• Method of reproducing failure code: Turn starting switch ON.
information
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 pump controller
4
CAN disconnection (Pump controller detected)
Trouble
(Pump controller system)
Cause Standard value in normal state/Remarks on troubleshooting
a Prepare with starting switch OFF, then carry out troubleshoot-
Wiring harness between CM02 (female) (8),
(9) – C01 (female) (45), – CE02 (female)
(1), – K02 (female) (A)
Wiring harness between CM02 (female)
(10) – C01 (female) (64), – CE02 (female)
(21), – K02 (female) (B)
a Prepare with starting switch OFF, then carry out troubleshoot-
Wiring harness between CM02 (female) (8),
(9) – C01 (female) (45), – CE02 (female)
(1), – K02 (female) (A), – N08 (male) (3)
Wiring harness between CM02 (female)
(10) – C01 (female) (64), – CE02 (female)
(21), – 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)
(1), – K02 (female) (A), – N08 (male) (3)
Wiring harness between CM02 (female)
(10) – C01 (female) (64), – CE02 (female)
(21), – K02 (female) (B), – N08 (male) (10)
a Prepare with starting switch OFF, then carry out troubleshoot-
If causes 1 – 4 are not detected, pump controller may be defective.
(Since trouble is in system, troubleshooting cannot be carried out.)
ing without turning starting switch ON.
ing without turning starting switch ON.
and carry out troubleshooting.
ing 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
PC138US, USLC-8