Komatsu D65PX-15 Troubleshooting When Error Code Is Displayed (Error Code)
| Error code | Failed section | Trouble | Action code | Trouble- shooting page |
| 1500L0 | Transmission clutch | See the list. (L0) | CALL E03 | 20-408 |
| 15SAL1 | Forward clutch | See the list. (L1) | CALL E03 | 20-409 |
| 15SALH | Forward clutch | See the list. (LH) | CALL E03 | 20-410 |
| 15SBL1 | Reverse clutch | See the list. (L1) | CALL E03 | 20-411 |
| 15SBLH | Reverse clutch | See the list. (LH) | CALL E03 | 20-412 |
| 15SEL1 | 1st clutch | See the list. (L1) | CALL E03 | 20-413 |
| 15SELH | 1st clutch | See the list. (LH) | CALL E03 | 20-414 |
| 15SFL1 | 2nd clutch | See the list. (L1) | CALL E03 | 20-415 |
| 15SFLH | 2nd clutch | See the list. (LH) | CALL E03 | 20-416 |
| 15SGL1 | 3rd clutch | See the list. (L1) | CALL E03 | 20-417 |
| 15SGLH | 3rd clutch | See the list. (LH) | CALL E03 | 20-418 |
| A000N1 | Engine | Overrun (N1) | — | 20-419 |
| AB00MA | Alternator | Malfunction (MA) | — | 20-420 |
| AD00L2 | Common rail | See the list. (L2) | CALL E03 | 20-420 |
| AD00MA | Common rail | Defective function (MA) | CALL E03 | 20-421 |
| AD10L3 | Fuel supply pump | See the list. (L3) | CALL E03 | 20-421 |
| AD10MA | Fuel supply pump | Defective function (MA) | CALL E03 | 20-423 |
| AD10MB | Fuel supply pump | Function reduction (MB) | CALL E03 | 20-423 |
| AD11KA | Fuel supply pump solenoid 1 | Disconnection (KA) | CALL E03 | 20-424 |
| AD11KB | Fuel supply pump solenoid 1 | Short circuit (KB) | CALL E03 | 20-425 |
| AD51KA | Fuel supply pump solenoid 2 | Disconnection (KA) | CALL E03 | 20-426 |
| AD51KB | Fuel supply pump solenoid 2 | Short circuit (KB) | CALL E03 | 20-427 |
| ADA1KA | No.1 injector solenoid | Disconnection (KA) | E02 | 20-428 |
| ADAZKB | No.1, 2, and 3 injector solenoids | Short circuit (KB) | CALL E03 | 20-429 |
| Error code | Failed section | Trouble | Action code | Trouble- shooting page | ||
| ADB1KA | No.2 injector solenoid | Disconnection (KA) | E02 | 20-431 | ||
| ADC1KA | No.3 injector solenoid | Disconnection (KA) | E02 | 20-432 | ||
| ADD1KA | No.4 injector solenoid | Disconnection (KA) | E02 | 20-433 | ||
| ADDZKB | No.4, 5, and 6 injector solenoids | Short circuit (KB) | CALL E03 | 20-434 | ||
| ADE1KA | No.5 fuel injector solenoid | Disconnection (KA) | E02 | 20-436 | ||
| ADF1KA | No.6 fuel injector solenoid | Disconnection (KA) | E02 | 20-437 | ||
| B@BAZG | Engine oil | Oil pressure reduction (ZG) | — | 20-438 | ||
| B@BCNS | Radiator coolant | Overheat (NS) | — | 20-438 | ||
| B@CENS | Power train oil | Overheat (NS) | — | 20-439 | ||
| B@HANS | Hydraulic oil | Overheat (NS) | — | 20-439 | ||
| D110KA | Battery relay | Short circuit (KA) | — | 20-440 | ||
| D110KB | Battery relay | Disconnection (KB) | — | 20-441 | ||
| D130KA | Neutral safety relay | Short circuit (KA) | E02 | 20-442 | ||
| D130KB | Neutral safety relay | Disconnection (KB) | E02 | 20-444 | ||
| D161KA | Back-up alarm relay | Short circuit (KA) | E01 | 20-446 | ||
| D161KB | Back-up alarm relay | Disconnection (KB) | E01 | 20-448 | ||
| D182KZ | Preheater relay coil | Disconnection or short circuit (KZ) | E01 | 20-450 | ||
| D1D0KB | Engine controller load power supply relay | Short circuit (KB) | E02 | 20-452 | ||
| D5ZFKA | Transmission neutral signal | Disconnection (KA) | E01 | 20-454 | ||
| D5ZFKB | Transmission neutral signal | Short circuit (KB) | E01 | 20-455 | ||
| DAFRKR | Monitor panel CAN communication | Defective communication (KR) | CALL E03 | 20-456 | ||
| DAQ0KK | Steering and transmission controller | Source voltage reduction/input (KK) | CALL E04 | 20-458 | ||
| DB30KK | ||||||
| DAQ0KT | Steering and transmission controller | Abnormality in controller (KT) | E02 | 20-459 | ||
| DAQ5KK | Steering and transmission controller sensor 5 V power supply | Source voltage reduction/input (KK) | CALL E03 | 20-460 | ||
| DB35KK | ||||||
| DAQ6KK | Steering and transmission controller sensor 24 V power supply | Source voltage reduction/input (KK) | CALL E03 | 20-462 | ||
| DB36KK | ||||||
| DAQ9KQ | Steering and transmission controller type collation | Type select signal inconsistency (KQ) | CALL E04 | 20-463 | ||
| DB39KQ | ||||||
| DB3RKR | Steering and transmission controller CAN communication | Defective communication (KR) | CALL E03 | 20-464 | ||
| DB20KQ | Engine controller type collation | Type select signal inconsistency (KQ) | CALL E03 | 20-466 | ||
| DB20KT | Engine controller | Abnormality in controller (KT) | CALL E03 | 20-467 | ||
| Error code | Failed section | Trouble | Action code | Trouble- shooting page | ||
| DB22KK | Engine controller load power supply | Source voltage reduction/input (KK) | CALL E04 | 20-468 | ||
| DB29KQ | Engine controller type select | Type select signal inconsistency (KQ) | CALL E03 | 20-470 | ||
| DB2AMA | Fuel injection amount adjustment switch signal | Malfunction (MA) | E02 | 20-471 | ||
| DB2RKR | Steering and transmission controller CAN communication | Defective communication (KR) | CALL E04 | 20-472 | ||
| DB2RMC | Engine controller CAN communication | Defective communication (MC) | CALL E03 | 20-474 | ||
| DB30KK | Steering and transmission controller | Source voltage reduction/input (KK) | CALL E04 | 20-476 | ||
| DAQ0KK | ||||||
| DB35KK | Steering and transmission controller sensor 5 V power supply | Source voltage reduction/input (KK) | CALL E03 | 20-476 | ||
| DAQ5KK | ||||||
| DB36KK | Steering and transmission controller sensor 24 V power supply | Source voltage reduction/input (KK) | CALL E03 | 20-476 | ||
| DAQ6KK | ||||||
| DB39KQ | Steering and transmission controller type collation | Type select signal inconsistency (KQ) | CALL E04 | 20-476 | ||
| DAQ9KQ | ||||||
| DD11KB | Starting switch | Short circuit (KB) | CALL E04 | 20-477 | ||
| DD12KA | Shift up switch | Disconnection (KA) | E02 | 20-478 | ||
| DD12KB | Shift up switch | Short circuit (KB) | E02 | 20-480 | ||
| DD13KA | Shift down switch | Disconnection (KA) | E02 | 20-482 | ||
| DD13KB | Shift down switch | Short circuit (KB) | E02 | 20-484 | ||
| DD14KA | Parking lever switch | Disconnection (KA) | CALL E03 | 20-486 | ||
| DDQ2KA | ||||||
| DD14KB | Parking lever switch | Short circuit (KB) | CALL E03 | 20-488 | ||
| DDQ2KB | ||||||
| DDE2L6 | Engine oil pressure switch | Refer to table (L6) | E01 | 20-490 | ||
| DDN7KA | Pitch control switch | Disconnection (KA) | E02 | 20-492 | ||
| DDN7KB | Pitch control switch | Short circuit (KB) | E02 | 20-494 | ||
| DDQ2KA | Parking lever switch | Disconnection (KA) | CALL E03 | 20-496 | ||
| DD14KA | ||||||
| DDQ2KB | Parking lever switch | Short circuit (KB) | CALL E03 | 20-496 | ||
| DD14KB | ||||||
| DGE2KX | Engine water temperature sensor (for high temperature) | Input signal is out of normal range (KX) | E01 | 20-497 | ||
| DGE3L6 | Engine water temperature sensor (for low temperature) | See table (L6) | E02 | 20-498 | ||
| DGE4KX | Fuel temperature sensor | Input signal is out of normal range (KX) | E01 | 20-499 | ||
| DGS1KX | Hydraulic oil temperature sensor | Input signal is out of normal range (KX) | — | 20-500 | ||
| DH30KX | Boost pressure sensor | Input is out of normal range (KX) | E02 | 20-502 | ||
| DH40KX | Common rail pressure sensor | Input is out of normal range (KX) | CALL E03 | 20-504 | ||
| DK10KX | Fuel control dial | Input is out of normal range (KX) | CALL E03 | 20-506 | ||
| DK12KX | Deceleration potentiometer | Input is out of normal range (KX) | CALL E03 | 20-508 | ||
| Error code | Failed section | Trouble | Action code | Trouble- shooting page |
| DK30KA | Steering potentiometer 1 | Disconnection (KA) | CALL E03 | 20-510 |
| DK30KB | Steering potentiometer 1 | Short circuit (KB) | CALL E03 | 20-511 |
| DK30KX | Steering potentiometer | Input signal is out of normal range (KX) | CALL E04 | 20-512 |
| DK30KZ | Steering potentiometer | Disconnection or short circuit (Double trouble) (KZ) | CALL E04 | 20-512 |
| DK30L8 | Steering potentiometer 1 | See table (L8) | CALL E03 | 20-513 |
| DK31KA | Steering potentiometer 2 | Short circuit (KA) | CALL E03 | 20-514 |
| DK31KB | Steering potentiometer 2 | Disconnection (KB) | CALL E03 | 20-515 |
| DK40KA | Brake potentiometer | Disconnection (KA) | CALL E03 | 20-516 |
| DK40KB | Brake potentiometer | Short circuit (KB) | CALL E03 | 20-517 |
| DK55KX | Forward-reverse potentiometer | Input signal is out of normal range (KX) | CALL E04 | 20-518 |
| DK55KZ | Forward-reverse potentiometer | Disconnection or short circuit (Double trouble) (KZ) | CALL E04 | 20-518 |
| DK55L8 | Forward-reverse potentiometer | See table (L8) | CALL E03 | 20-519 |
| DK56KA | Forward-reverse potentiometer 1 | Short circuit (KA) | CALL E03 | 20-520 |
| DK56KB | Forward-reverse potentiometer 1 | Disconnection (KB) | CALL E03 | 20-522 |
| DK57KA | Forward-reverse potentiometer 2 | Short circuit (KA) | CALL E03 | 20-524 |
| DK57KB | Forward-reverse potentiometer 2 | Disconnection (KB) | CALL E03 | 20-526 |
| DKH1KA | Pitch angle sensor | Short circuit (KA) | CALL E03 | 20-528 |
| DKH1KB | Pitch angle sensor | Disconnection (KB) | CALL E03 | 20-529 |
| DLE3LC | Engine Ne speed sensor | See table (LC) | CALL E03 | 20-530 |
| DLF1KA | Transmission output speed sensor | Disconnection (KA) | E01 | 20-531 |
| DLH1LC | Engine G speed sensor | See table (LC) | CALL E03 | 20-532 |
| DV00KB | Caution buzzer | Short circuit (KB) | — | 20-533 |
| DW5AKA | Pitch control solenoid | Disconnection (KA) | E02 | 20-534 |
| DW5AKB | Pitch control solenoid | Short circuit (KB) | E02 | 20-535 |
| DW7BKA | Fan reverse solenoid | Disconnection (KA) | E01 | 20-536 |
| DW7BKB | Fan reverse solenoid | Short circuit (KB) | E01 | 20-537 |
| DWN1KA | HSS EPC solenoid right | Disconnection (KA) | CALL E03 | 20-538 |
| DWN1KB | HSS EPC solenoid right | Short circuit (KB) | CALL E03 | 20-539 |
| DWN2KA | HSS EPC solenoid left | Disconnection (KA) | CALL E03 | 20-540 |
| Error code | Failed section | Trouble | Action code | Trouble- shooting page |
| DWN2KB | HSS EPC solenoid left | Short circuit (KB) | CALL E03 | 20-541 |
| DWN5KA | Fan pump TVC solenoid | Disconnection (KA) | E01 | 20-542 |
| DWN5KB | Fan pump TVC solenoid | Short circuit (KB) | E01 | 20-543 |
| DXH4KA | 1st clutch ECMV | Disconnection (KA) | CALL E03 | 20-544 |
| DXH4KB | 1st clutch ECMV | Short circuit (KB) | CALL E03 | 20-545 |
| DXH5KA | 2nd clutch ECMV | Disconnection (KA) | CALL E03 | 20-546 |
| DXH5KB | 2nd clutch ECMV | Short circuit (KB) | CALL E03 | 20-547 |
| DXH6KA | 3rd clutch ECMV | Disconnection (KA) | CALL E03 | 20-548 |
| DXH6KB | 3rd clutch ECMV | Short circuit (KB) | CALL E03 | 20-549 |
| DXH7KA | Reverse clutch ECMV | Disconnection (KA) | CALL E03 | 20-550 |
| DXH7KB | Reverse clutch ECMV | Short circuit (KB) | CALL E03 | 20-551 |
| DXH8KA | Forward clutch ECMV | Disconnection (KA) | CALL E03 | 20-552 |
| DXH8KB | Forward clutch ECMV | Short circuit (KB) | CALL E03 | 20-553 |
