Blind Spot Detection/Rear Cross Traffic Alert > Relay and Fuse
INSPECTION
1. CHECK FUSE
1. Remove the fuse and inspect visually.
2. If the fuse is blown out, replace the fuse.
NOTE:
If the fuse is blown again, check the system wiring harness.
Blind Spot Detection/Rear Cross Traffic Alert > Relay and Fuse
LOCATION

Fuse & Relay Box | Fuse 10 A (radar sensor LH (master), radar sensor RH (slave), BSD/RCTA OFF switch) | (A) |
NOTE:
For other related fuses, refer to the wiring diagram. Power Supply Circuit">
Radar sensor
Switches and harnessDtc b1820 short in side airbag rh
AIRBAG SYSTEM (DIAGNOSTICS) > Diagnostic Chart with Trouble CodeDTC B1820 SHORT IN SIDE AIRBAG RHDiagnosis start condition:Ignition voltage is 10 V to 16 V.DTC detecting condition:• Side airbag harness (RH) circuit is shorted.• Side airbag module (RH) is faulty.• Airbag control ...
Handling of radar sensors
Sensors
In the Subaru Ascent, radar sensors are strategically positioned on both sides
of the rear bumper to monitor adjacent traffic and support BSD/RCTA functionality.
To maintain reliable and accurate operation of the Subaru Ascent BSD/RCTA system,
the following precautions must al ...
Floor mat
CAUTION
If the floor mat in the Subaru Ascent shifts forward and interferes with pedal
operation, it may lead to loss of control and serious accidents. Follow these safety
precautions carefully.
Always use genuine SUBARU floor mats or equivalent products specifically
designed for the ...