Inspection Methods
1)Switch Inspection
It is the terminal picture of electric rear-view mirrors switch and its connector(Fig.3.8).
Fig.3.8 Terminal of Electric Rear-View Mirror Connector
（1）Choose the“L”of rear-view mirror selective switch to control the left rear-view mirror.
Upward of rear-view mirrors:Pin 6 and 7,pin 4 and 8 of rear-view mirror connector are connected respectively;
Downward of rear-view mirrors:Pin 4 and 7,pin 6 and 8 of rear-view mirror connector are connected respectively;
Leftward of rear-view mirrors:Pin 6 and 7,pin 5 and 8 of rear-view mirror connector are connected respectively;
Rightward of rear-view mirrors:Pin 5 and 7,pin 6 and 8 of rear-view mirror connector are connected respectively;
（2）Choose the“R”of rear-view mirror selective switch to control the right rear-view mirror.(https://www.daowen.com)
Upward of rear-view mirrors:Pin 6 and 7,pin 3 and 8 of rear-view mirror connector are connected respectively;
Downward of rear-view mirrors:Pin 3 and 7,pin 6 and 8 of rear-view mirror connector are connected respectively;
Leftward of rear-view mirrors:Pin 6 and 7,pin 2 and 8 of rear-view mirror connector are connected respectively;
Rightward of rear-view mirrors:Pin 2 and 7,pin 6 and 8 of rear-view mirror connector are connected respectively;
（3）Press the folding button of rear-view mirrors and the pin 10 and 7 of rear-view mirror connector are connected.
2)Circuit Inspection
Check whether the fuse of electric rear-view mirrors inside the central control box of instrument panel is burned or not;
Check whether pin 7 of electric rear-view mirrors is reliably grounded or not;
Check for the working voltage of pin 8 of electric rear-view mirror switch;
Check the wire harness.