Komatsu PC200-8M0 Shop Manual page 1190

SEN06151-00
2. On the service menu screen, press [F3] (R)
twice, and then select "03 Abnormality Record".
3. Press [F6] ( ) to confirm.
4. On the Abnormality Record screen, press [F3]
(R) once, and then select "02 Electrical
Systems".
5. Press [F6] ( ) to confirm.
32
80-100
Testing with self-diagnosis function
a For details, see the failure code list related to air
conditioner
Failure Failure (Displayed on
code screen)
A/C Inner Sensor Open
879AKA
Circuit
A/C Inner Sensor Short
879AKB
Circuit
A/C Outer Sensor Open
879BKA
Circuit
A/C Outer Sensor Short
879BKB
Circuit
Ventilating Sensor Open
879CKA
Circuit
Ventilating Sensor Short
879CKB
Circuit
Sunlight Sensor Open or
879DKZ
Short Circuit
Ventilation Dumper
879EMC
Abnormality
Air Mix Dumper Abnor-
879FMC
mality
879GKX Refrigerant Abnormality
A/C Model Selection
DAZ9KQ
Abnormality
CAN2 Discon (Aircon
DAZQKR
ECU)
*: Troubleshooting cannot be performed while the
controller is mounted on the machine since the con-
nector cannot be checked.
**: Troubleshooting is not performed by the air con-
ditioner unit but by the machine monitor.
a The air conditioner inner sensor means the in-
side (air) temperature sensor.
a The air conditioner outer sensor means the out-
side (air) temperature sensor.
a The ventilating sensor means the evaporator
temperature sensor (frost sensor).
a The ventilation damper means the vent (mode)
changeover damper (door).
a The air mix damper means the temperature ad-
justment (air mix) damper (door).
PC200, 200LC, 220, 220LC-8M0
100 Air conditioner
Remarks
*
*
*
*
See Chapter
40, "Trouble-
shooting by fail-
ure code"
**