2016 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE

Electrical Specification

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.
G13633111Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Contents Measuring condition Standard
(B68) No. 1 (+) ←→ Chassis ground (-) BAT power supply (headlight Lo/Hi right side) (RHB) Always 9 - 16 V
(B68) No. 2 (+) ←→ Chassis ground (-) Headlight Lo right side output Headlight Lo OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B68) No. 3 (+) ←→ Chassis ground (-) GND Always Less than 1 Ξ©
(B68) No. 4 - - -
(B68) No. 5 (+) ←→ Chassis ground (-) BAT power supply (control) Always 9 - 16 V
(B68) No. 6 - - -
(B68) No. 7 - - -
(B68) No. 8 Body CAN (H) Except for sleep status(1) Serial communication
(B68) No. 9 Body CAN (L) Except for sleep status(1) Serial communication
(B68) No. 10 (+) ←→ Chassis ground (-) Front wiper Lo Front wiper Lo switch OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B68) No. 11 (+) ←→ Chassis ground (-) Front wiper Hi Front wiper Hi switch OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B68) No. 12 (+) ←→ Chassis ground (-) BAT power supply (wiper) Always 9 - 16 V
(B68) No. 13 (+) ←→ Chassis ground (-) Front wiper RTN Front wiper stop position β†’ in operation Less than 1 V β†’ 9 - 16 V
(B68) No. 14 (+) ←→ Chassis ground (-) Washer fluid level Washer fluid sufficient β†’ insufficient Less than 1 V β†’ 9 - 16 V
(B68) No. 15 (+) ←→ Chassis ground (-) Rear wiper RTN Rear wiper stop position β†’ in operation 9 - 16 V β†’ Less than 1 V
(B68) No. 16 - - -
(B68) No. 17 - - -
(B68) No. 18 - - -
(B68) No. 19 - - -
(B68) No. 20 (+) ←→ Chassis ground (-) Answer-back buzzer Answer-back buzzer OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B68) No. 21 (+) ←→ Chassis ground (-) Rear wiper (ON) Rear wiper switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B68) No. 22 (+) ←→ Chassis ground (-) Wiper deicer output Rear window defogger switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B68) No. 23 (+) ←→ Chassis ground (-) Rear defogger output Rear window defogger switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B68) No. 24 (+) ←→ Chassis ground (-) Front fog light output Front fog light switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B68) No. 25 - - -
(B68) No. 26 (+) ←→ Chassis ground (-) Front wiper Hi switch Front wiper Hi switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B69) No. 1 (+) ←→ Chassis ground (-) BAT power supply (washer) Always 9 - 16 V
(B69) No. 2 (+) ←→ Chassis ground (-) Headlight Hi right side output Ignition switch ON Less than 1 V β†’ 9 - 16 V
(B69) No. 3 (+) ←→ Chassis ground (-) Rear washer output Rear washer switch OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B69) No. 4 - - -
(B69) No. 5 (+) ←→ Chassis ground (-) Front washer output Front washer switch OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B69) No. 6 (+) ←→ Chassis ground (-) BAT power supply (headlight Lo/Hi left side) (LHB) Always 9 - 16 V
(B69) No. 7 (+) ←→ Chassis ground (-) Headlight Hi left side output Ignition switch ON Less than 1 V β†’ 9 - 16 V
(B69) No. 8 (+) ←→ Chassis ground (-) Headlight Lo left side output Headlight Lo OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B69) No. 9 (+) ←→ Chassis ground (-) Lighting switch 2 (redundant circuit) Lighting switch 2 OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B69) No. 10 (+) ←→ Chassis ground (-) BAT (backup) Always 9 - 16 V
(B69) No. 11 (+) ←→ Chassis ground (-) Ignition power supply Ignition switch ON 9 - 16 V
(B69) No. 12 (+) ←→ Chassis ground (-) GND Always Less than 1 Ξ©
(1) For CAN sleep state, hold on for approx. one minute with ignition switch OFF and all the doors and trunk closed.
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