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Home >> Subaru >> 2017 >> WRX STI >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Blind Spot Detection System (Diagnostics) >> Control Module I/O Signal >> Electrical Specification >> Radar Sensor
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Radar Sensor

Fig 1: Radar Sensor Control Module I/O Signal Connector Terminals
G10273366Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Contents Measuring condition Standard
Radar sensor LH (master) Radar sensor RH (slave)
1 ←→ Chassis ground Private CAN H Private CAN H Always 1 MΩ or more
2 ←→ Chassis ground Master CAN H - Always 1 MΩ or more
3 ←→ Chassis ground - - - -
4 ←→ Chassis ground Left mirror LED output Right mirror LED output
  • Ignition switch OFF → ON
  • BSD/RCTA OFF switch OFF → ON
  • When indicator is ON: 2.5 - 10.5 V
  • When indicator is blinking: 0 ←→ 2.5 - 10.5 V
  • When indicator is OFF: Less than 1 V
5 ←→ Chassis ground Ignition power supply Ignition power supply Ignition switch OFF → ON Less than 1 V → 9 - 16 V
6 ←→ Chassis ground Private CAN L Private CAN L Always 1 MΩ or more
7 ←→ Chassis ground Master CAN L - Always 1 MΩ or more
8 ←→ Chassis ground BSD/RCTA OFF switch -
  • Ignition switch ON
  • BSD/RCTA OFF switch OFF → ON (while pressing and holding the switch)
Less than 1 V → 9 - 16 V
9 ←→ Chassis ground - - - -
10 ←→ Chassis ground GND GND Always Less than 1 Ω