To: Japan domestic customers (part #’s sold in Japan),
This is to inform product users about a software malfunction with KE-4XG control system.
If you have purchased the part number within serial number range below, please contact your dealer.
Please accept our sincere apologies for any inconvenience this may cause. We appreciate your cooperation.
| Start of Campaign | July 10, 2024 |
| Product | KE-4XG Control Unit (Japan domestic version) |
| Malfunction | Due to software malfunction, when rotating the lever of control head very slowly in throttle zone, throttle operation can be disabled depending on engine load condition. No alarm codes (LED flashing) appear even if this malfunction happens. |
| Solution | Software modification of control units |
| Part No. | NM3474-00 control unit |
| Quantity | 12 units |
| Serial No.’s affected | |
| Part No. | Serial No. |
| NM3474-00 | 24E27-001,24E31-001,24E31-002,24F04-001,24F07-001,24F07-002, 24F14-001,24F14-002,24F18-001,24F27-001,24G02-001,24G02-002 |
| How to confirm Serial No. |
| For further inquiry: | |
| NHK MEC Corporation
Sales Department |
℡：045-475-8905 |