Skill Training
(1)Finish the inspection and diagnosis of CAN wire connection in the car,use the universal meter to measure the resistance and voltage of diagnostic interface terminal 6# and 14#,and then fill the measured values in the blanks.
The standard value range of resistance between CAN HI and CAN LO is 55～65 Ωand the measured value is___________.If it is in this range,then it’s normal.
The standard voltage value range of CAN HI is 2.6-3.5 V and the measured value is___________.If it is in this range,then it’s normal.
The standard voltage value range of CAN LO is 1.4-2.45 V and the measured value is___________.If it is in this range,then it’s normal.
(2)According to the inspections,judge whether the following values are normal or not and mark it.(https://www.daowen.com)
The resistance between CAN HI and CAN LO:□Yes/□No
The voltage of CAN H:□Yes/□No;
The voltage of CAN L:□Yes/□No.
(3)Based on the above inspection data,judge whether the performance of CAN wire connection is good or not and write it down as well as the reasons.
