LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2023 >> WRX Base, Automatic CVT Trans >> Repair and Diagnosis (Single Page) >> Electrical >> Gauges >> Instrumentation System (Diagnostics) >> Control Module I/O Signal >> Electrical Specification
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Electrical Specification

G14615368Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Contents Measuring condition Standard
(i97) No. 1 (+) ←→ Chassis ground (-) Battery power supply Always 8 V - 16 V
(i97) No. 2 (+) ←→ Chassis ground (-) Ignition power supply (main) Ignition switch ON 8 V - 16 V
(i97) No. 3 - - -
(i97) No. 4 (+) ←→ Chassis ground (-) Seat belt (driver's seat) Seat belt not fastened → fastened 8 V - 16 V → 0 V
(i97) No. 5 - - -
(i97) No. 6 Body CAN H (CAN communication line) - -
(i97) No. 7 Body CAN L (CAN communication line) - -
(i97) No. 8 (+) ←→ Chassis ground (-) Seat belt (rear right) Seat belt not fastened → fastened 8 V - 16 V → 0 V
(i97) No. 9 (+) ←→ Chassis ground (-) Seat belt (rear center) Seat belt not fastened → fastened 8 V - 16 V → 0 V
(i97) No. 10 (+) ←→ Chassis ground (-) Seat belt (rear left) Seat belt not fastened → fastened 8 V - 16 V → 0 V
(i97) No. 11 - - -
(i97) No. 12 U-ART2 - -
(i97) No. 13 - - -
(i97) No. 14 - - -
(i97) No. 15 - - -
(i97) No. 16 - - -
(i97) No. 17 - - -
(i97) No. 18 Oil pressure switch - -
(i97) No. 19 Security indicator - -
(i97) No. 20 - - -
(i97) No. 21 (+) ←→ Chassis ground (-) RH turn indicator Switch ON 0 V → 8 - 16 V
(i97) No. 22 (+) ←→ Chassis ground (-) LH turn indicator Switch ON 0 V → 8 - 16 V
(i97) No. 23 Ambient sensor (+) Always Ref. to AIR CONDITIONER>AMBIENT SENSOR>INSPECTION .
(i97) No. 24 Ambient sensor (-) - -
(i97) No. 25 Fuel level sensor (+) Always Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>FUEL LEVEL SENSOR . Ref. to FUEL INJECTION (FUEL SYSTEMS) (H4DOTC)>FUEL SUB LEVEL SENSOR .
(i97) No. 26 Fuel level sensor (-) - -
(i97) No. 27 U-ART3 - -
(i97) No. 28 - - -
(i97) No. 29 Illumination control switch (GND) - -
(i97) No. 30 Illumination control switch (VR) - -
(i97) No. 31 Illumination control switch (+) - -
(i97) No. 32 ←→ No. 29 Bright switch signal input Switch ON Continuity exists
(i97) No. 33 Bright signal - -
(i97) No. 34 Illumi. (-) PWM - -
(i97) No. 35 SI-DRIVE switch - -
(i97) No. 36 - - -
(i97) No. 37 - - -
(i97) No. 38 ←→ Chassis ground TFT switch Switch ON Continuity exists
(i97) No. 39 - - -
(i97) No. 40 ←→ Chassis ground GND Always Less than 1 Ω