the VCCA_UV error on 33907 was triggered when we are doing test about ESD. details see below:
when we put -6000v voltage ESD on the CAN_H, we found the VCCA_UV error on 33907 was triggered. but when we put -4000v or -8000v voltage ESD on the CAN_H, the VCCA_UV error on 33907 can not be triggered.
and because the VCCA_UV error can not be cleared by READ, we worried that if the VCCA_UV error be triggered on car, we can only cut the power line of our ECU to clear this serious error.
so we want:
1. we want to know the reason why VCCA_UV can be triggered by ESD test, and why only -6000v can trigger the error but -4000v or -8000v can not ?
2. we want to know if the VCCA_UV was triggered , how can we clear it but not need to cut the power line of our ECU.
PS: the 33907 is alway supplied by 12v voltage battery of our ECU on the car.