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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL SYSTEM (DIAGNOSTICS)CONTROL MODULE I/O SIGNALELECTRICAL SPECIFICATIONBODY INTEGRATED UNIT
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans

Body Integrated Unit

2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION 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 β†’ ON Less than 1 V β†’ 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 β†’ in operation Less than 1 V β†’ 9 - 16 V
(B280) No. 6 ←→ Chassis ground Front wiper RTN Front wiper stop position β†’ in operation Less than 1 V β†’ 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 β†’ ON Less than 1 V β†’ 9 - 16 V
(B280) No. 9 ←→ Chassis ground Headlight Hi right side output Headlight Hi OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B280) No. 10 ←→ Chassis ground Tail light output Tail light OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B280) No. 11 ←→ Chassis ground Illumination output Illumination OFF β†’ ON Less than 1 V β†’ 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 β†’ other than P range
 Less than 1 V β†’ 9 - 16 V
(B287) No. 1 ←→ Chassis ground GND Always Less than 1 Ξ©
(B287) No. 2 ←→ Chassis ground Rear wiper relay output Rear wiper OFF β†’ ON 9 - 16 V β†’ 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 β†’ ON (Release the parking brake while depressing the brake pedal during engine start. And, for the CVT vehicle, set the select lever to other than P range.) 9 - 16 V β†’ Less than 1 V
(B287) No. 6 ←→ Chassis ground Lighting relay power supply (control) ACC OFF β†’ ON (with keyless access with push button start system), or ignition key not inserted β†’ inserted (without keyless access with push button start system) Less than 1 V β†’ 9 - 16 V
(B287) No. 7 ←→ Chassis ground Headlight Hi left side output Headlight Hi OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B287) No. 8 - - -
(B281) No. 1 ←→ Chassis ground Front fog light relay output Lighting switch 2 ON, then front fog light switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B281) No. 2 ←→ Chassis ground Answer-back buzzer Answer-back buzzer OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(B281) No. 3 ←→ Chassis ground Front hood switch input (close) Front hood open β†’ close 9 - 16 V β†’ Less than 1 V
(B281) No. 4 ←→ Chassis ground Wiper deicer output Rear window defogger switch OFF β†’ ON (press and hold for three seconds) 9 - 16 V β†’ Less than 1 V
(B281) No. 5 ←→ Chassis ground Rear defogger output Rear window defogger switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(B281) No. 6 - - -
(B281) No. 7 ←→ Chassis ground BAT (backup) Always 9 - 16 V
(B281) No. 8 - - -
(B281) No. 9 ←→ Chassis ground Security horn output Security horn, not operating β†’ operating 9 - 16 V β†’ 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 MΞ© or more
(B281) No. 15 - - -
(B281) No. 16 ←→ Chassis ground Stop light switch Stop light switch OFF β†’ ON Less than 1 V β†’ 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 β†’ reverse (MT model) Less than 1 V β†’ 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 β†’ ON 9 - 16 V β†’ Less than 1 V
(i84) No. 1 ←→ Chassis ground Key-in switch (without keyless access with push button start system) Ignition key not inserted β†’ inserted (without keyless access with push button start system) ?Less than 1 V β†’ 9 - 16 V
ACC switch (with keyless access with push button start system) ACC OFF β†’ ON (with keyless access with push button start system)
(i84) No. 2 ←→ Chassis ground Turn light output left rear Left rear turn signal OFF β†’ ON Less than 1 V β†’ 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) β†’ ON (brake pedal depressed)
 Less than 1 V β†’ 9 - 16 V
(i84) No. 4 ←→ Chassis ground GND Always Less than 1 Ξ©
(i84) No. 5 ←→ Chassis ground Turn light output right rear Right rear turn signal OFF β†’ ON Less than 1 V β†’ 9 - 16 V
(i84) No. 6 ←→ Chassis ground Door lock output (driver's seat unlock) When UNLOCK signal is output Less than 1 V β†’ 9 - 16 V
(i84) No. 7 ←→ Chassis ground - - -
(i84) No. 8 ←→ Chassis ground Luggage/trunk light output Rear gate/trunk closed β†’ open 9 - 16 V β†’ Less than 1 V
(i84) No. 9 ←→ Chassis ground Room light output Any door or rear gate/trunk closed β†’ open 9 - 16 V β†’ 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 β†’ ON (Manual A/C) 9 - 16 V β†’ Less than 1 V
(i171) No. 6 ←→ Chassis ground Opener switch (rear gate/trunk) Rear gate/trunk opener button OFF β†’ ON 9 - 16 V β†’ 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 β†’ ON (IG ON β†’ OFF with driver's door open)
(Without keyless access with push button start system)		 Less than 1 V β†’ 9 - 16 V
(i171) No. 10 ←→ Chassis ground Map light output All doors closed β†’ any door open (map light switch in DOOR position) 9 - 16 V β†’ Less than 1 V
(i171) No. 11 - - -
(i171) No. 12 ←→ Chassis ground Manual unlock switch Door unlock switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 13 ←→ Chassis ground Door switch (passenger's seat) Passenger's door closed β†’ open 9 - 16 V β†’ Less than 1 V
(i171) No. 14 ←→ Chassis ground Door switch (rear seat LH) Rear seat LH door closed β†’ open 9 - 16 V β†’ Less than 1 V
(i171) No. 15 ←→ Chassis ground Door switch (rear gate/trunk) Rear gate/trunk closed β†’ open 9 - 16 V β†’ Less than 1 V
(i171) No. 16 - - -
(i171) No. 17 - - -
(i171) No. 18 ←→ Chassis ground Lighting Lo relay output (redundant circuit) Lighting switch 2 OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 19 ←→ Chassis ground Lighting switch 2 (redundant circuit) Lighting switch 2 OFF β†’ ON 9 - 16 V β†’ 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 β†’ ON (with keyless access with push button start system), or ignition key not inserted β†’ inserted (without keyless access with push button start system) Less than 1 V β†’ 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 β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 27 ←→ Chassis ground Door switch (rear seat RH) Rear seat RH door closed β†’ open 9 - 16 V β†’ 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 β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 30 - - -
(i171) No. 31 - - -
(i171) No. 32 ←→ Chassis ground Manual lock switch Door lock switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 33 ←→ Chassis ground Turn signal switch right Turn signal switch right OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 34 ←→ (i171) No. 8 Illumination sensor power supply output Ignition switch OFF β†’ ON Less than 1 V β†’ 5 V
(i171) No. 35 ←→ Chassis ground Lighting I switch Lighting switch 1 OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 36 ←→ Chassis ground Dimmer Pass switch Dimmer switch Pass OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 37 ←→ Chassis ground Turn hazard switch Turn hazard switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 38 ←→ Chassis ground Turn signal switch left Turn signal switch left OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i171) No. 39 ←→ Chassis ground Door switch (driver's seat) Driver's door closed β†’ open 9 - 16 V β†’ Less than 1 V
(i171) No. 40 ←→ Chassis ground P range switch Shift lever, other than P range β†’ P range (CVT model) 9 - 16 V β†’ 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 β†’ ON 9 - 16 V β†’ Less than 1 V
(i81) No. 4 - - -
(i81) No. 5 ←→ Chassis ground Parking brake switch Parking brake OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i81) No. 6 ←→ Chassis ground Door lock status switch passenger's seat Passenger's door lock β†’ unlock (With keyless access with push button start system) 9 - 16 V β†’ Less than 1 V
(i81) No. 7 ←→ Chassis ground Front hood switch input (open) Front hood close β†’ open 9 - 16 V β†’ Less than 1 V
(i81) No. 8 - - -
(i81) No. 9 - - -
(i81) No. 10 ←→ Chassis ground Rear washer switch Rear washer switch OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i81) No. 11 - - -
(i81) No. 12 ←→ Chassis ground Front washer switch Front washer switch OFF β†’ ON 9 - 16 V β†’ 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 β†’ ON 9 - 16 V β†’ Less than 1 V
(i81) No. 20 ←→ Chassis ground When lighting switch is at AUTO (except for C5 model) Lighting switch AUTO OFF β†’ ON (except for C5 model) 9 - 16 V β†’ Less than 1 V
Lighting switch OFF (C5 model) Lighting switch OFF OFF β†’ ON (C5 model) 9 - 16 V β†’ Less than 1 V
(i81) No. 21 - - -
(i81) No. 22 ←→ Chassis ground Door lock status switch driver's seat Driver's door lock β†’ unlock
(With keyless access with push button start system)		 9 - 16 V β†’ 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 β†’ ON 9 - 16 V β†’ Less than 1 V
(i81) No. 27 - - -
(i81) No. 28 ←→ Chassis ground Lighting switch 2 (control) Lighting switch 2 OFF β†’ ON 9 - 16 V β†’ Less than 1 V
(i81) No. 29 - - -
(i81) No. 30 - - -
(i81) No. 31 ←→ Chassis ground Collision detection signal IG ON Pulse generation
(i81) No. 32 - - -
(1) CAN or LIN sleep state: Hold on for approx. one minute with ignition switch OFF and all the doors and rear gate closed.
RENDER: 1.0x

NO RELATED

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