Euler good cat nest follow-up: After investigation, it is initially believed that the instrument safety box power wiring harness is caused by false connection

Blue Whale Car December 17, yesterday's morning rush hour, Shanghai elevated a Euler good cat suddenly nestled. Blue Whale Motors was informed of the latest findings.

According to the description of the owner of the accident, the vehicle failure occurred at about 6:10 a.m., the failure occurred suddenly during the vehicle driving process, the instrument and multimedia were equally black screened when the fault occurred, waiting for about half an hour for the vehicle to recover, and the specific recovery situation was not described clearly by the owner;

According to the service provider inspection, after the vehicle enters the station, the service provider checks the vehicle normally, detects the fault code of each system, and the historical fault code module is KBCM, IP, OBC, GW, BMS, ESP, MCU, of which the fault of the MCU system is more special, the MCU report code is VCU communication timeout, combined with the fault phenomenon focus on the MCU fault code for troubleshooting, after investigation found that the cab internal instrument insurance box power cord fixed bolt loose, power line virtual connection, touch Mars with hand, The service provider has tightened it.

According to the inspection results, further analysis shows that the instrument fuse box controls multi-modules such as instruments, multimedia, T boxes and VCU, and if the power supply of the instrument fuse box is virtually connected, it may cause the above phenomena described by the customer. Further query the vehicle background data, the background is missing the data between 6:19 minutes and 6:52 minutes of the vehicle, if the instrument safety box wiring harness is virtually connected, it will cause the module to lose power, causing the T box to be unable to upload data, and this data-free time period is relatively close to the fault and recovery time described by the customer, combining the above situation, the preliminary suspicion is that the instrument safety box power harness is virtually connected.