The Blind Spot Monitor is a system that has 2 functions;
These functions use same sensors.

RCTA function: When a vehicle approaching from the right or left at the rear of the vehicle is detected, both outside rear view mirror indicators will flash.
Turning the BSM function/RCTA function on/offToyota CH-R Service Manual > Supplemental Restraint Systems: Airbag Cut-off Switch
Components
COMPONENTS
ILLUSTRATION
*1
AIRBAG CUT OFF SWITCH CYLINDER SUB-ASSEMBLY
*2
INSTRUMENT PANEL FINISH END PANEL RH
Removal
REMOVAL
PROCEDURE
1. REMOVE INSTRUMENT PANEL FINISH END PANEL RH
Click here
2. REMOVE AIRBAG CUT O ...
Toyota CH-R Service Manual > Charging System: Terminals Of Ecm
TERMINALS OF ECM
CHECK ECM
HINT:
The standard normal voltage between each pair of ECM terminals is shown in the
table below. The appropriate conditions for checking each pair of terminals are
also indicated. The result of checks should be compared with the standard normal
voltage for that ...