Error Code Komatsu FB25-12 [PDF]

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Information related to troubleshooting Failure codes table

Failure codes table Failure code

Control device

Action level

7REXKA Seat switch: Open circuit

TWC

L04

7REXKB Seat switch: Ground fault

TWC

L04

Failure (Display on screen)

989L00

Lock caution 1

MON

-

989M00

Lock caution 2

MON

-

989N00

Lock caution 3

MON

-

TWC

L01

B@GBZK Low Battery Fluid Level D160KB

Ground Fault of Backup Lamp Relay Output

TWC

L01

D160KY

Short Circuit of Backup Lamp Relay Output

TWC

L01

D161KB

Ground Fault of Backup Alarm Buzzer Relay Output

TWC

L01

D161KY

Short Circuit of Backup Alarm Buzzer Relay Output

TWC

L01

D19RKA Open Circuit Cooling fan 1 relay

TWC

L01

D19RKB

TWC

L01

D19RKY Short Circuit Cooling fan 1 relay

TWC

L01

D19VKA

Open Circuit Cooling fan 2 relay

TWC

L03

D19VKB

Ground Fault Cooling fan 2 relay

TWC

L03

D19VKY

Short Circuit Cooling fan 2 relay

TWC

L01

D1HBKA Open Circuit of Main Contactor 2

TWC

L04

D1HBKB Ground Fault of Main Contactor 2

TWC

L04

D1HBKY Short Circuit of Main Contactor 2

TWC

L03

D1HPKB Travel Speed Alarm Relay1 Ground Short Circuit

TWC

L01

D1HPKY Travel Speed Alarm Relay1 Short Circuit

TWC

L01

D1HQKB Travel Speed Alarm Relay2 Ground Short Circuit

TWC

L01

D1HQKY Travel Speed Alarm Relay2 Short Circuit

TWC

L01

D1HRKY Travel Speed Alarm Relay3 Short Circuit

TWC

L01

D5XWKA DISC) SEATBELT ERROR SIG

TWC

L01

D5XWKY SeatBelt Interlock Error Signal Short Circuit

TWC

L01

D5XXKA DISC) S/BELT IL VALID SIG

TWC

L01

Ground Fault Cooling fan 1 relay

FB25-12, FB30-12

History class Electrical system Electrical system Electrical system Electrical system Electrical system Mechanical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system

Remarks

FB30-12 only FB30-12 only FB30-12 only

40-81

Information related to troubleshooting Failure codes table

Failure code

Failure (Display on screen)

D5XXKY SeatBelt Interlock Valid Signal Short Circuit

Control device

Action level

TWC

L01

D811MC

KOMTRAX Error

KOMTRAX

-

D862KA

GPS Antenna Open Circuit

KOMTRAX

-

D8ALKA

System Operating Lamp (KMTX) Open Circuit

KOMTRAX

-

D8ALKB

System Operating Lamp (KMTX) Short Circuit

KOMTRAX

-

D8AQK4 CAN2 Discon (KOMTRAX)

MON

L03

D8AQKR CAN Discon (KOMTRAX)

MON

-

DAF0KT

Non-volatile Memory (HST)

MON

L03

DAF0MB Monitor (ROM) Abnormality

MON

-

DAF0MC Monitor Error

MON

-

DAF3KK Main Battery Voltage Low (MON)

MON

-

KOMTRAX

-

DAFLKA System Operating Lamp Open Circuit (MON)

MON

-

DAFLKB System Operating Lamp Short Circuit (MON)

MON

-

KOMTRAX

-

Memory Malfunction (M/C)

TWC

L01

DBN0KT Memory Malfunction (M/C)

TWC

L01

DBN0MC Controller Malfunction (M/C)

TWC

-

DBN2KK Load Battery Voltage Low (M/C)

TWC

L03

DBN3KK Main Battery Voltage Low (M/C)

TWC

L04

DBN5KX Sensor 1 Voltage Out of Normal Range (M/C)

TWC

L04

DBN6KX Sensor 2 Voltage Out of Normal Range (M/C)

TWC

L03

DBN9KQ Model Selection Abnormality (M/C)

TWC

L01

DBNCMA Inconsistency of Option Selection (M/C)

TWC

L01

DBNEKR CAN Discon (against Travel INV)

TWC

L04

DBNFKR CAN Discon (against Pump INV)

TWC

L03

DBNHKA Open Circuit of Permission of Supply MC2 (M/C)

TWC

L01

DBNHKB Ground Fault of Permission of Supply MC2 (M/C)

TWC

L01

DAFGMC GPS Module Error

DAFQKR CAN Discon (MON) DBN000

40-82

History class Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system

Remarks

FB25-12, FB30-12

Information related to troubleshooting Failure codes table

Failure code

Control device

Action level

DBNHKY Short Circuit of Permission of Supply MC2 (M/C)

TWC

L01

DBNJKB Ground Fault of During Operation Signal

TWC

L01

DBNJKY Short Circuit of During Operation Signal

TWC

L01

DBNKKA Open Circuit of External OFF Signal

TWC

L03

DBNKKB Ground Fault of External OFF Signal

TWC

L03

DBNKKY Short Circuit of External OFF Signal

TWC

L03

DBNLKA Open Circuit of System Operating Lamp (M/C)

TWC

-

DBNLKB Short Circuit of System Operating Lamp (M/C)

TWC

-

DBNMKA Open Circuit of Travel Enable Signal M/C)

TWC

L01

DBNMKB Ground Fault of Travel Enable Signal (M/C)

TWC

L01

DBNNKA Open Circuit of Lift Enable Signal (M/C)

TWC

L01

DBNNKB Ground Fault of Lift Enable Signal (M/C)

TWC

L01

DBNPKA Open Circuit of AC Power Supply Input Signal (M/C)

TWC

L01

DBNRKR CAN Discon (Master Controller)

MON

L03

DBNTKA Open Circuit of Key Signal

TWC

L01

DBNUKA Open Circuit of MC2 Cut Contactor

TWC

L04

DBNUKB Ground Fault of MC2 Cut Contactor

TWC

L04

DBNUKY Short Circuit of MC2 Cut Contactor

TWC

L03

DBNVMA Defective System Starting Signal

TWC

L04

DDDQKA DISC) HIGH LIFTING HIGHT2 SW

TWC

L01

DDDTKA DISC) Seat SW1

TWC

L01

DDDTKB SHORT_G) Seat SW1

TWC

L01

DDDUKA DISC) Seat SW2

TWC

L01

DDDUKB SHORT_G) Seat SW2

TWC

L01

DDDVKA ABNL) Seat SW

TWC

L04

DDDVKM OPE-ERROR) Seat SW

TWC

L04

DDK6KA FNR Lever Input Signal Disconnection

TWC

L03

DDK6KY FNR Lever Input Signal Short Circuit

TWC

L03

FB25-12, FB30-12

Failure (Display on screen)

History class Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system

Remarks

FB25-12 only FB25-12 only FB25-12 only

40-83

Information related to troubleshooting Failure codes table

Failure code

Control device

Action level

DFC1KA Open Circuit of Lift Lever Angle Sensor

TWC

L03

DFC1KB Short Circuit of Lift Lever Angle Sensor

TWC

L03

DGE5KA Open Circuit of Ambient Temperature Sensor

TWC

-

DGE5KB Ground Fault of Ambient Temperature Sensor

TWC

L01

DHPCKA Open Circuit of Lift Pressure Sensor

TWC

L01

DHPCKB Short Circuit of Lift Pressure Sensor

TWC

L01

DJK1KA

Open Circuit of Loaded Current Sensor

TWC

L01

DJK1KB

Short Circuit of Loaded Current Sensor

TWC

L01

DJK1MA Defective Loaded Current Sensor

TWC

L01

DK10KA

Open Circuit of Accelerator Pedal Angle Sensor

TWC

L03

DK10KB

Short Circuit of Accelerator Pedal Angle Sensor

TWC

L03

DK11KA

Open Circuit of Accelerator Pedal Angle Sensor 2

TWC

L03

DK11KB

Short Circuit of Accelerator Pedal Angle Sensor 2

TWC

L03

DK13KX

Accelerator Pedal Input Out of Normal Range

TWC

L04

DK13L8

Defective Accelerator Pedal Angle Sensor

TWC

L03

DK30MA Malfunction of steering angle sensor

TWC

L01

DK5YMA Malfunction of wheel angle sensor

TWC

L01

DV00KB

MON

L01

DW9MKA Open Circuit of Lift Lock Solenoid

TWC

L03

DW9MKB Ground Fault of Lift Lock Solenoid

TWC

L03

DW9MKY Short Circuit of Lift Lock Solenoid

TWC

L03

DWP0KA Open Circuit of EPACS solenoid

TWC

L03

DWP0KB Short Circuit of EPACS solenoid

TWC

L03

F7FQKR CAN Discon (ID key)

MON

L03

F7G0MC ID Key Antenna Error

MON

-

GF11KG

Travel INV Battery Voltage High

TWC

-

GF11KK

Travel INV Battery Voltage Low

TWC

L02

GF12KA

Open Circuit of Travel INV FET U-Phase

TWC

L04

40-84

Failure (Display on screen)

Short Circuit of Buzzer Output

History Remarks class Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Mechanical system Electrical system

FB25-12, FB30-12

Information related to troubleshooting Failure codes table

Failure code

Failure (Display on screen)

Control device

Action level

GF13KA

Open Circuit of Travel INV FET V-Phase

TWC

L04

GF14KA

Open Circuit of Travel INV FET W-Phase

TWC

L04

GF15KQ Inconsistency of Travel INV capacity

TWC

L03

GF16KA

Open Circuit of Travel INV MC2

TWC

L04

GF16KB

Short Circuit of Travel INV MC2

TWC

L03

GF17MA Quick Charge Abnormality Travel INV

TWC

L03

GF18KQ Inconsistency of Travel INV function Recognition

TWC

L04

GF1AMA Defective Travel INV Current Sensor

TWC

L04

GF1BMA Defective Travel INV Temperature Sensor

TWC

L03

GF1C00

TWC

-

GF1CNS Travel INV Temperature Abnormality

TWC

L02

GF1DMA Inconsistency of Permission of Supply MC2

TWC

L01

GF1EKT

TWC

-

GF1FMA Defective Power Supply of Travel INV Key

TWC

L04

GF1JKA

Open Circuit of Travel INV Load Power Supply Line

TWC

L04

GF1LKB

Short Circuit of Travel INV Upper and Lower FET

TWC

L04

GF1MKB Travel INV Upper FET

TWC

L04

GF1NKB Travel INV Lower FET

TWC

L04

GF1QKR Travel INV CAN Discon

TWC

L04

GF21KG Pump INV Battery Voltage High

TWC

-

GF21KK

Pump INV Battery Voltage Low

TWC

L02

GF22KA

Open Circuit of Pump INV FET U-phase

TWC

L03

GF23KA

Open Circuit of Pump INV FET V-phase

TWC

L03

GF24KA

Open Circuit of Pump INV FET W-phase

TWC

L03

GF25KQ Inconsistency of Pump INV Capacity

TWC

L03

GF26KA

Open Circuit of Pump INV MC2

TWC

L04

GF26KB

Short Circuit of Pump INV MC2

TWC

L03

TWC

L04

Travel INV Temperature Raise

Travel INV EEPROM Abnormality

GF27MA Pump INV Quick Charge Error

FB25-12, FB30-12

History Remarks class Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Mechanical system Mechanical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Mechanical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system

40-85

Information related to troubleshooting Failure codes table

Failure code

Control device

Action level

GF28KQ Inconsistency of Pump INV Function Recognition

TWC

L04

GF2AMA Defective Current of Pump INV

TWC

L03

GF2BMA Defective Temperature Sensor of Pump INV

TWC

L03

GF2C00

TWC

-

GF2CNS Pump INV Temperature Abnormality

TWC

L02

GF2DMA Inconsistency of Permission of Supply MC2

TWC

L01

GF2EKT

TWC

L01

GF2FMA Defective Power Supply for Pump INV Key

TWC

L04

GF2JKA

Open Circuit of Pump INV Load Power Supply Line

TWC

L04

GF2LKB

Short Circuit of Pump INV Upper and Lower FET

TWC

L04

GF2MKB Short Circuit of Pump INV Upper FET

TWC

L04

GF2NKB Short Circuit of Travel INV Lower FET

TWC

L04

GF2QKR Pump INV CAN Discon

TWC

L03

GF30KB

TWC

L04

GF31MA Defective Temperature Sensor of Travel Motor

TWC

L03

GF3200

Travel Motor Temperature Rises

TWC

-

GF32NS

Travel Motor Temperature Abnormality

TWC

L02

GF33MA Defective Travel Motor Speed Sensor

TWC

L04

GF50KB

TWC

L03

GF51MA Defective Pump Motor Temperature Sensor

TWC

L03

GF5200

TWC

-

GF52NS Pump Motor Temperature Abnormality

TWC

L02

GF53MA Defective Pump Motor Speed Sensor

TWC

L03

40-86

Failure (Display on screen)

Pump INV Temperature Rises

Pump INV EEPROM Abnormality

Short Circuit of Travel Motor

Short Circuit of Pump Motor

Pump Motor Temperature Rises

History Remarks class Electrical system Electrical system Electrical system Mechanical system Mechanical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Electrical system Mechanical system Mechanical system Electrical system Electrical system Electrical system Mechanical system Mechanical system Electrical system

FB25-12, FB30-12