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Body Integrated Unit

G11264375Courtesy of SUBARU OF AMERICA, INC.
Terminal No. Contents Measuring condition Standard
(B280) No. 1 ←→ Chassis ground BAT power supply (control) Always 9 - 16 V
(B280) No. 2 ←→ Chassis ground Turn light output right front Right front turn signal OFF → ON Less than 1 V → 9 - 16 V
(B280) No. 3 ←→ Chassis ground BAT power supply (head Hi right side) (RHB) Always 9 - 16 V
(B280) No. 4 ←→ Chassis ground BAT power supply (illumination) Always 9 - 16 V
(B280) No. 5 ←→ Chassis ground Rear wiper RTN Rear wiper stop position → in operation Less than 1 V → 9 - 16 V
(B280) No. 6 ←→ Chassis ground Front wiper RTN Front wiper stop position → in operation Less than 1 V → 9 - 16 V
(B280) No. 7 ←→ Chassis ground BAT power supply (tail) Always 9 - 16 V
(B280) No. 8 ←→ Chassis ground Turn light output left front Left front turn signal OFF → ON Less than 1 V → 9 - 16 V
(B280) No. 9 ←→ Chassis ground Headlight Hi right side output Headlight Hi OFF → ON Less than 1 V → 9 - 16 V
(B280) No. 10 ←→ Chassis ground Tail light output Tail light OFF → ON Less than 1 V → 9 - 16 V
(B280) No. 11 ←→ Chassis ground Illumination output Illumination OFF → ON Less than 1 V → 9 - 16 V
(B280) No. 12 ←→ Chassis ground Key lock solenoid output (CVT Model without the keyless access with push button start system)
  • Ignition key inserted
  • Shift lever, P range → other than P range
 Less than 1 V → 9 - 16 V
(B287) No. 1 ←→ Chassis ground GND Always Less than 1 Ω
(B287) No. 2 ←→ Chassis ground Rear wiper relay output Rear wiper OFF → ON 9 - 16 V → Less than 1 V
(B287) No. 3 ←→ Chassis ground BAT power supply (head Hi left side) (LHB) Always 9 - 16 V
(B287) No. 4 ←→ Chassis ground BAT power supply (shift lock/key lock/turn light) Always 9 - 16 V
(B287) No. 5 ←→ Chassis ground DRL output DRL OFF → ON 9 - 16 V → Less than 1 V
(B287) No. 6 ←→ Chassis ground Lighting relay power supply (control) ACC OFF → ON (with keyless access with push button start system), or ignition key not inserted → inserted (without keyless access with push button start system) Less than 1 V → 9 - 16 V
(B287) No. 7 ←→ Chassis ground Headlight Hi left side output Headlight Hi OFF → ON Less than 1 V → 9 - 16 V
(B287) No. 8 - - -
(B281) No. 1 ←→ Chassis ground Front fog light relay output Front fog light switch OFF → ON (Without SRF) 9 - 16 V → Less than 1 V
(B281) No. 2 ←→ Chassis ground Answer-back buzzer (Models equipped with the keyless access with push button start system) Answer-back buzzer OFF → ON Less than 1 V → 9 - 16 V
(B281) No. 3 ←→ Chassis ground Front hood switch input (close) Front hood open → close 9 - 16 V → Less than 1 V
(B281) No. 4 ←→ Chassis ground Wiper deicer output Rear window defogger switch OFF → ON 9 - 16 V → Less than 1 V
(B281) No. 5 ←→ Chassis ground Rear defogger output Rear window defogger switch OFF → ON 9 - 16 V → Less than 1 V
(B281) No. 6 ←→ Chassis ground Diagnosis related CAN (H) - -
(B281) No. 7 ←→ Chassis ground BAT (backup) Always 9 - 16 V
(B281) No. 8 ←→ Chassis ground Diagnosis related CAN (L) - -
(B281) No. 9 ←→ Chassis ground Security horn output Security horn, not operating → operating 9 - 16 V → Less than 1 V
(B281) No. 10 - - -
(B281) No. 11 - - -
(B281) No. 12 - - -
(B281) No. 13 - - -
(B281) No. 14 ←→ Chassis ground EGI immobilizer communication Always (Without keyless access with push button start system) 1 MΩ or more
(B281) No. 15 - - -
(B281) No. 16 ←→ Chassis ground Stop light switch Stop light switch OFF → ON Less than 1 V → 9 - 16 V
(B281) No. 17 Body CAN (H) Except for sleep status(1) Serial communication
(B281) No. 18 ←→ Chassis ground MT reverse switch MT shift lever, other than reverse → reverse (MT model) Less than 1 V → 9 - 16 V
(B281) No. 19 Body CAN (L) Except for sleep status(1) Serial communication
(B281) No. 20 ←→ Chassis ground Lighting Lo relay output (control) Lighting switch 2 OFF → ON 9 - 16 V → Less than 1 V
(i84) No. 1 ←→ Chassis ground Key-in switch (without keyless access with push button start system) Ignition key not inserted → inserted (without keyless access with push button start system) Less than 1 V → 9 - 16 V
ACC switch (with keyless access with push button start system) ACC OFF → ON (with keyless access with push button start system)
(i84) No. 2 ←→ Chassis ground Turn light output left rear Left rear turn signal OFF → ON Less than 1 V → 9 - 16 V
(i84) No. 3 ←→ Chassis ground Shift lock solenoid
  • IG ON
  • Shift lever P range
  • Stop light switch OFF (brake pedal not depressed) → ON (brake pedal depressed)
 Less than 1 V → 9 - 16 V
(i84) No. 4 ←→ Chassis ground GND Always Less than 1 Ω
(i84) No. 5 ←→ Chassis ground Turn light output right rear Right rear turn signal OFF → ON Less than 1 V → 9 - 16 V
(i84) No. 6 ←→ Chassis ground Door lock output (driver's seat unlock) When UNLOCK signal is output Less than 1 V → 9 - 16 V
(i84) No. 7 ←→ Chassis ground - - -
(i84) No. 8 ←→ Chassis ground Luggage/trunk light output Rear gate/trunk closed → open 9 - 16 V → Less than 1 V
(i84) No. 9 ←→ Chassis ground Room light output Any door or rear gate/trunk closed → open 9 - 16 V → Less than 1 V
(i84) No. 10 ←→ Chassis ground - - -
(i171) No. 1 Main system CAN (H) Except for sleep status(1) Serial communication
(i171) No. 2 Main system CAN (L) Except for sleep status(1) Serial communication
(i171) No. 3 ←→ Chassis ground Immobilizer antenna (A) When ignition key inserted (Without keyless access with push button start system) Pulse generation
(i171) No. 4 ←→ Chassis ground Immobilizer antenna (B) When ignition key inserted (Without keyless access with push button start system) Pulse generation
(i171) No. 5 ←→ Chassis ground Rear defogger switch Rear window defogger switch OFF → ON (Manual A/C) 9 - 16 V → Less than 1 V
(i171) No. 6 ←→ Chassis ground Opener switch (rear gate/trunk) Rear gate/trunk opener button OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 7 - - -
(i171) No. 8 Illumination sensor GND - -
(i171) No. 9 ←→ Chassis ground Key ring illumination output Key ring OFF → ON (Without keyless access with push button start system) Less than 1 V → 9 - 16 V
(i171) No. 10 ←→ Chassis ground Map light output Any door closed → open 9 - 16 V → Less than 1 V
(i171) No. 11 ←→ Chassis ground SRF (right) relay output SRF (right) OFF → ON (With SRF) Less than 1 V → 9 - 16 V
(i171) No. 12 ←→ Chassis ground Manual unlock switch Door unlock switch OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 13 ←→ Chassis ground Door switch (passenger's seat) Passenger's door closed → open 9 - 16 V → Less than 1 V
(i171) No. 14 ←→ Chassis ground Door switch (rear seat LH) Rear seat LH door closed → open 9 - 16 V → Less than 1 V
(i171) No. 15 ←→ Chassis ground Door switch (rear gate/trunk) Rear gate/trunk closed → open 9 - 16 V → Less than 1 V
(i171) No. 16 - - -
(i171) No. 17 ←→ Chassis ground SRF OFF switch SRF OFF switch OFF → ON (With SRF) 9 - 16 V → Less than 1 V
(i171) No. 18 ←→ Chassis ground Lighting Lo relay output (redundant circuit) Lighting switch 2 OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 19 ←→ Chassis ground Lighting switch 2 (redundant circuit) Lighting switch 2 OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 20 ←→ Chassis ground Security indicator light output When security light is illuminating Pulse generation
(i171) No. 21 - - -
(i171) No. 22 - - -
(i171) No. 23 ←→ Chassis ground Lighting relay power supply (redundant circuit) ACC OFF → ON (with keyless access with push button start system), or ignition key not inserted → inserted (without keyless access with push button start system) Less than 1 V → 9 - 16 V
(i171) No. 24 Diagnosis related CAN (H) - Serial communication
(i171) No. 25 Diagnosis related CAN (L) - Serial communication
(i171) No. 26 ←→ Chassis ground Dimmer Hi switch Dimmer switch Hi beam OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 27 ←→ Chassis ground Door switch (rear seat RH) Rear seat RH door closed → open 9 - 16 V → Less than 1 V
(i171) No. 28 ←→ (i171) No. 8 Illumination sensor signal When lighting switch is at AUTO 0 - 5 V
(i171) No. 29 ←→ Chassis ground Power window relay output Ignition switch OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 30 ←→ Chassis ground SRF (left) relay output SRF (left) OFF → ON (With SRF) Less than 1 V → 9 - 16 V
(i171) No. 31 ←→ Chassis ground - - -
(i171) No. 32 ←→ Chassis ground Manual lock switch Door lock switch OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 33 ←→ Chassis ground Turn signal switch right Turn signal switch right OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 34 ←→ (i171) No. 8 Illumination sensor power supply output Ignition switch OFF → ON Less than 1 V → 5 V
(i171) No. 35 ←→ Chassis ground Lighting I switch Lighting switch 1 OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 36 ←→ Chassis ground Dimmer Pass switch Dimmer switch Pass OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 37 ←→ Chassis ground Turn hazard switch Turn hazard switch OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 38 ←→ Chassis ground Turn signal switch left Turn signal switch left OFF → ON 9 - 16 V → Less than 1 V
(i171) No. 39 ←→ Chassis ground Door switch (driver's seat) Driver's door closed → open 9 - 16 V → Less than 1 V
(i171) No. 40 ←→ Chassis ground P range switch Shift lever, other than P range → P range (CVT model) 9 - 16 V → Less than 1 V
(i81) No. 1 - - -
(i81) No. 2 LIN communication Except for sleep status(1) Serial communication
(i81) No. 3 ←→ Chassis ground Rear wiper switch (INT) Rear wiper switch INT OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 4 - - -
(i81) No. 5 ←→ Chassis ground Parking brake switch Parking brake OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 6 ←→ Chassis ground Door lock status switch passenger's seat Passenger's door lock → unlock (With keyless access with push button start system) 9 - 16 V → Less than 1 V
(i81) No. 7 ←→ Chassis ground Front hood switch input (open) Front hood close → open 9 - 16 V → Less than 1 V
(i81) No. 8 - - -
(i81) No. 9 ←→ Chassis ground Towing switch Towing switch OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 10 ←→ Chassis ground Rear washer switch Rear washer switch OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 11 - - -
(i81) No. 12 ←→ Chassis ground Front washer switch Front washer switch OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 13 - - -
(i81) No. 14 - - -
(i81) No. 15 - - -
(i81) No. 16 - - -
(i81) No. 17 - - -
(i81) No. 18 LIN communication Except for sleep status(1) Serial communication
(i81) No. 19 ←→ Chassis ground Rear wiper switch (ON) Rear wiper switch OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 20 ←→ Chassis ground Lighting switch AUTO Lighting switch AUTO OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 21 - - -
(i81) No. 22 ←→ Chassis ground Door lock status switch driver's seat Driver's door lock → unlock (With keyless access with push button start system) 9 - 16 V → Less than 1 V
(i81) No. 23 - - -
(i81) No. 24 - - -
(i81) No. 25 - - -
(i81) No. 26 ←→ Chassis ground Front fog light switch Front fog light switch OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 27 - - -
(i81) No. 28 ←→ Chassis ground Lighting switch 2 (control) Lighting switch 2 OFF → ON 9 - 16 V → Less than 1 V
(i81) No. 29 - - -
(i81) No. 30 ←→ Chassis ground - - -
(i81) No. 31 ←→ Chassis ground - - -
(i81) No. 32 ←→ Chassis ground - - -
(1) For CAN sleep state, hold on for approx. one minute with ignition switch OFF and all the doors and trunk/rear gate closed.
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