Navigating the complex domain of machine diagnostics codes requires a blend of technological prowess and in-depth knowledge. Komatsu’s equipment promises unwavering performance and offers intricate diagnostic mechanisms to preempt and address malfunctions. So, when a Komatsu piece beeps a fault code, it signals more than just an error—it signals a robust diagnostic story. Let's dive into it.
Every Komatsu machine embodies state-of-the-art engineering coupled with intuitive diagnostic ecosystems. These systems render fault codes as vital indicators, providing technicians with a profound insight into the machinery's core.
E03: An alert pinpointing discrepancies in the safety lever system. Immediate inspection of the lever's connectivity and alignment is paramount.
E05: A flag indicating perturbations within the hydraulic system's controller. This could be indicative of intrinsic controller malfunctions or peripheral connectivity aberrations.
E10: Signifies potential disruptions within the vehicle controller. A meticulous examination of the interfacing points, followed by contemplation of controller replacement, is advocated.
E15: Signals a possible deviation in the rotation angle sensor's metrics. Ensuring the sensor's integrity and scrutinizing its interconnections is crucial.
E20: Isolates challenges associated with the hydraulic return filter. Depending on the fault's nature, a comprehensive filter cleansing or a complete overhaul might be warranted.
Here Complete list of Komatsu fault codes:
E02: PC-the EPC system;
E03: Swing parking brake system;
E10: the engine controller power failure, the engine control drive system circuit malfunction (this engine stall);
E11: the engine control system failure (decrease of output power to protect the engine);
E14: the feedback system abnormalities;
E15: engine sensors (temperature, fuel pressure, oil pressure) fault;
EOE: a network failure.
989L00: The fault code: the engine controller lock warning (mode 1).
989M00: the engine controller to lock warning (mode 2).
989N00: the engine controller to lock warning (mode 3).
AA10NX: air filter clogging.
ABOOKE: The charging voltage is too low.
B @ BAZG: low oil pressure.
B @ BAZK: the oil level is too low.
B @ BCNS: engine coolant overheating.
The @ B BCZK: the coolant level is too low.
B@ the HANS: the hydraulic oil from overheating.
CA111: the engine controller internal fault.
CA115: the engine speed sensor and backup speed sensor failure.
CA122: the intake air pressure sensor feedback voltage is too high failure.
CA123: the intake air pressure sensor feedback voltage is too low failure.
CA131: the throttle plate sensor feedback voltage failure.
CA132: throttle plate sensor feedback voltage and low failure.
CA144: high coolant temperature sensor feedback voltage fault 145, the coolant temperature sensor feedback voltage is too low failure;
CA153: intake air temperature sensor feedback voltage is too high failure;
CA154: intake air temperature sensor feedback voltage is too low failure;
CA155: the intake air temperature is too high (over the limit);
CA187: sensor power supply voltage is too high failure;
CA221: the ambient pressure sensor feedback voltage is too high failure;
CA222: the ambient pressure sensor feedback voltage is too low failure;
CA227: sensor power supply voltage is too high failure;
CA234: engine overspeed;
CA238: the power supply voltage of the speed sensor failure;
CA271: IMV/PCV1 short circuit;
CA272: IMV/PCV1 circuit;
CA322: the nozzle an open circuit, short circuit fault;
CA323: nozzle, open circuit, short circuit fault;
CA324: nozzle, open circuit, short circuit fault;
CA325: nozzle, open circuit, short circuit fault;
CA331: the nozzle open circuit, short circuit fault;
CA332: nozzle, open circuit, short circuit fault;
CA342: the correction code is not correct;
CA351: jet drive circuit failure;
CA352: the sensor supply voltage is too low failure;
CA386: the sensor supply voltage is too high failure;
CA428: fuel moisture sensor feedback voltage is too high failure;
CA429: the fuel moisture sensor feedback voltage is too low failure;
CA435: engine oil pressure switch failure;
CA441: the battery voltage is too low failure;
CA442: the battery voltage is too high failure;
CA449: the common rail pressure is too high failure;
CA451: the common rail pressure sensor feedback value is too high failure;
CA452: the common rail pressure sensor feedback value is too low failure;
CA488: the intake air temperature is too high (torque decrease);
CA553: the common rail pressure is too high failure;
CA559: the common rail pressure is too low failure;
CA689: the engine speed sensor fault;
CA731: spare engine speed sensor signal phase failure;
CA757: all data is lost;
CA778: spare engine speed sensor fault;
CA633: the data transmission to suspend failure;
CA2185: the throttle plate supply voltage is too high failure;
CA2186: the throttle plate supply voltage is too low failure;
CA2249: the common rail pressure is too low failure;
CA2311: IMV, solenoid valve failure;
CA2555: preheat the intake is too high voltage fault;
CA2556: preheat the intake low voltage fault;
D19JKZ: personalized code conversion exception;
D862KA: GPS antenna circuit;
DA22KK: pump solenoid valve power supply voltage is too low failure;
DA25KP: 5V sensor supply abnormalities;
DA29KQ: abnormal mode selection;
DA2RMC: open circuit (display);
DGH2KB: hydraulic oil temperature sensor short circuit;
DHPAMA: before the pump pressure sensor is abnormal;
DHPBMA: after the pump pressure sensor is abnormal;
DHS3MA: Stick to recover PPC abnormal pressure sensor,
DHS4MA: bucket involved in PPC abnormal pressure sensor,
DHS8MA: boom enhance PPC abnormal pressure sensor,
DHSAMA: turn to the right PPC pressure sensor is abnormal;
DHSBMA: abnormal left turn PPC pressure sensor,
DHSDMA: bucket to open the PPC abnormal pressure sensor,
DHX1MA: abnormal load sensor,
DW43KA: walking high and low-speed converter solenoid valve circuit;
DW43KB: walking high and low-speed conversion solenoid valve short circuit;
DW45KA: rotation to keep the solenoid valve open circuit;
DW45KB: rotation to keep the solenoid valve short circuit;
DW91KA: two overflow solenoid valve circuit;
DW91KB: walk convergence of short-circuit of the solenoid valve;
DWA2KA: spare solenoid valve circuit;
DWA2KB: spare solenoid valve short circuit;
DWKOKA: two overflow solenoid valve circuit;
DWKOKB: two overflow solenoid valve short circuit;
DXA8KA: former pump PC-EPC solenoid valve circuit;
DXA8KB: former pump PC-EPC solenoid valve short circuit;
DXA9KA: after the pump PC-EPC solenoid valve circuit;
DXA9KB: after the pump PC-EPC solenoid valve short circuit;
DXEOKA: the LS-EPC solenoid valve circuit;
DXEOKB: the LS-EPC solenoid valve short circuit;
DXE4KA: emergency EPC circuit breaker;
DXE4KB: emergency EPC short circuit;
DXE5KA: pump confluence/shunt the main solenoid valve open circuit;
DXE5KB: pump confluence/diversion of the main solenoid valve short circuit;
DXE6KA: pump confluence/shunt LS electromagnetic valve open circuit;
DXE6KB: pump confluence/shunt LS electromagnetic valve short circuit;
DY20KA: wiper not working properly.,
DY20MA: wiper parking exception;
DY2CKA: washers motor circuit;
DY2CKB: washers motor short circuit.
Komatsu's diagnostic nomenclature, while seemingly arcane, is grounded in logic:
The prefix "E" is emblematic of an Error.
The ensuing numerical digits serve as identifiers, zeroing in on the component or system undergoing duress.
For a nuanced interpretation, professionals are advised to consult the dedicated manual of their respective Komatsu model. Each model, given its unique engineering, may possess bespoke diagnostic identifiers.
Read also: Caterpillar Fault Codes List to know all the codes.
The Manual: An Encyclopedia of Solutions: The machine's comprehensive guide is a reservoir of tailored insights and resolutions specific to each fault code.
Reassess Connectivity Metrics: Before delving into intricate diagnostics, ensure all connectivity endpoints are secure and devoid of corrosion.
Update to Innovate: Periodic software refreshes can remedy and preclude many operational challenges.
Engage with Connoisseurs: In scenarios of unresolved complexities, engaging a certified Komatsu savant is more than a recommendation—it's a requisite.
See also: Construction Equipment Maintenance Software
Komatsu's diagnostic codifications serve as a beacon, illuminating the intricate pathways of machinery health and performance. Professionals can resolve extant issues and augment their Komatsu apparatus's operational longevity and prowess through a holistic comprehension and adept interpretation of these codes.
It's paramount to remember that while this exposition offers an expert perspective, the machine-specific manual remains an invaluable asset, and when confronted with perplexities, always enlist the acumen of seasoned experts.