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HOMESERVICE MANUALSSUBARU2014LEGACY 2.5I, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL SYSTEM (DIAGNOSTICS)CONTROL MODULE I/O SIGNALELECTRICAL SPECIFICATION
2014 Subaru Legacy 2.5i, Automatic CVT Trans

Electrical Specification

2014 Subaru Legacy 2.5i, Automatic CVT TransSECTION Electrical Specification
Fig 1: Control Module Terminals Layout
G06650528Courtesy of SUBARU OF AMERICA, INC.
Description Terminal No. Signal (V or Ξ©) Note
Ignition switch ON (engine OFF)
Ignition power supply (rear wiper) A5 ↔ chassis ground Less β†’ 10 - 13 V Ignition switch OFF β†’ ON
Battery power supply (shift lock/key lock) B6 ↔ chassis ground 10 - 13V Always
Battery power supply (door lock) D1 ↔ chassis ground 10 - 13V Always
Battery power supply (control) C6 ↔ chassis ground 10 - 13V Always
Ground A1 ↔ chassis ground Less than 1.5 V Always
B31 ↔ chassis ground
C1 ↔ chassis ground
D29 ↔ chassis ground
Battery power supply (back-up) B7 ↔ chassis ground 10 - 13V Always
Ignition power supply D17 ↔ chassis ground Less than 1.5V β†’ 10 - 13 V Ignition switch OFF β†’ ON
ACC power supply D25 ↔ chassis ground Less than 1.5V β†’ 10 - 13V Ignition switch OFF β†’ Accessory ON
Key-in switch A4 ↔ chassis ground Less than 1.5V β†’ 10 - 13V Key inserted (models without keyless access)
ACC input ACC ON (model with keyless access)
P range SW B21 ↔ chassis ground 8 V or more β†’ less than 1.5 V P range to other than P range
Stop light SW A10 ↔ chassis ground Less than 1.5 V β†’ 8 V or more Stop light switch OFF β†’ ON
Door SW (driver's) C14 ↔ chassis ground 8 V or more β†’ less than 1.5 V Front right door closed β†’ open
Door SW (passenger's) C13 ↔ chassis ground 8 V or more β†’ less than 1.5 V Front left door closed β†’ open
Door SW (rear right) C25 ↔ chassis ground 8 V or more β†’ less than 1.5 V Rear right door closed β†’ open
Door SW (rear left) C24 ↔ chassis ground 8 V or more β†’ less than 1.5 V Rear left door closed β†’ open
Accessory connector B30 ↔ chassis ground 8 V or more β†’ less than 1.5 V Rear gate/trunk closed β†’ open
Rear gate SW/trunk SW C33 ↔ chassis ground 8 V or more β†’ less than 1.5 V Rear gate/trunk closed β†’ open
Opener SW (trunk/rear gate) C10 ↔ chassis ground 8 V or more β†’ less than 1.5 V Rear gate/trunk opener switch ON
Manual switch (LOCK) C9 ↔ chassis ground 8 V or more β†’ less than 1.5 V Door lock switch ON
Manual switch (UNLOCK) C20 ↔ chassis ground 8 V or more β†’ less than 1.5 V Door unlock switch ON
Door lock status switch (driver's) C12 Less than 1 Ξ© Door in UNLOCK status
Door lock status switch (passenger's) C23 Less than 1 Ξ© Door in UNLOCK status
Door lock status switch (driver's) C12 ↔ chassis ground 8 V or more β†’ less than 1.5 V Door in UNLOCK status
Door lock status switch (passenger's) C23 ↔ chassis ground 8 V or more β†’ less than 1.5 V Door in UNLOCK status
Lighting AUTO B16 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at AUTO position
Lighting II A34 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at II position
B34 ↔ chassis ground
Lighting I B17 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at I position
Dimmer passing B25 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at passing position
Dimmer Hi beam B15 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at Hi beam position
Front fog light SW B26 ↔ chassis ground 8 V or more β†’ less than 1.5 V Front fog light switch ON
TPMS C34 Less than 1 Ξ© At answer-back of transmitter registration
Illumination sensor power supply A9 ↔ A29 Less than 1.5 V β†’ 8 V or more Ignition switch OFF β†’ ON
Illumination sensor signal A19 47 - 1, 200 Hz When AUTO
Ground (illumination sensor) A29 ↔ chassis ground Less than 1.5 V Always
Rear wiper SW ON A12 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at ON position
Rear wiper SW INT A22 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at INT position
Rear washer SW A32 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at ON position
Illumination SW (Vi1) D12 ↔ chassis ground Approx. 5 V While clearance light illuminates
Illumination SW (Vi2) D22 ↔ chassis ground 0.3 - 4.5 V
Illumination SW (Vi3) D28 ↔ chassis ground Less than 1.5 V Always
Bright SW C21 ↔ chassis ground 8 V or more β†’ less than 1.5 V Switch at ON position
Reverse SW (MT) B22 ↔ chassis ground Less than 1.5 V β†’ 8 V or more Reverse SW ON
Fuel level sensor C17 ↔ chassis ground 15.4 - 416 Ξ© Always
Seat belt SW (driver's) C30 ↔ chassis ground Less than 1.5 V β†’ 8 V or more Buckle removal β†’ insert
Seat belt SW (passenger's) C29 ↔ chassis ground Less than 1.5 V β†’ 8 V or more Buckle removal β†’ insert
Impact sensor C28 ↔ chassis ground Less than 1.5 V β†’ 8 V or more Apply an impact
Hi-speed CAN communication circuit 1 (Hi) B20 Serial communication Except for sleep status(1)
Hi-speed CAN communication circuit 1 (Lo) B28
Hi-speed CAN communication circuit 2 (Hi) C27 Serial communication Except for sleep status(1)
Hi-speed CAN communication circuit 2 (Lo) C35
KAC CAN circuit (Hi) A11 Serial communication Except for sleep status(1)
KAC CAN circuit (Lo) A21
K-line B9 Serial communication Select Monitor communication in progress
Audio/Navigation communication circuit D21 Serial communication Β 
Keyless entry communication line D11 Serial communication Β 
Immobilizer antenna B1 ↔ chassis ground -20 - 20 V Communication with ignition key in progress
B2 ↔ chassis ground 0 - 5 V
Shift lock solenoid B5 ↔ chassis ground Less than 1.5 V β†’ 8 V or more When shift lock is operating (AT models)
Key lock solenoid (LOCK) B4 ↔ B3 Less than 1.5 V β†’ 8 V or more LOCK status ON (AT models without keyless access)(2)
Key lock solenoid (UNLOCK) B3 ↔ B4 UNLOCK status ON (AT models without keyless access)(2)
Rear wiper ON output A7 ↔ chassis ground Less than 0.5 V β†’ 8 V or more Rear wiper operation in progress
Rear wiper return output A6 ↔ chassis ground Less than 0.5 V β†’ 8 V or more Wiper reversed operation in progress
Door LOCK output D2 ↔ chassis ground Less than 0.5 V β†’ 8 V or more When LOCK signal is output
Door UNLOCK output D3 ↔ chassis ground Less than 0.5 V β†’ 8 V or more When UNLOCK signal is output
Rear gate/trunk UNLOCK output D7 ↔ chassis ground Less than 0.5 V β†’ 8 V or more When UNLOCK signal is output
Lighting relay power supply A3 ↔ chassis ground 10 - 13 V ACC or key-in SW ON
B19 ↔ chassis ground 10 - 13 V ACC or key-in SW ON
Lighting relay Hi output A17 ↔ chassis ground 8 V or more β†’ less than 1.0 V Dimmer SW at Hi position
Lighting relay Lo output B35 ↔ chassis ground 8 V or more β†’ less than 1.0 V Dimmer SW at Lo position
Lighting Lo relay output 2 A27 ↔ chassis ground 8 V or more β†’ less than 1.0 V Lighting II SW at ON position
Lighting relay I output A16 ↔ chassis ground 8 V or more β†’ less than 1.0 V Lighting I SW at ON position
Front fog light output A15 ↔ chassis ground 8 V or more β†’ less than 1.0 V Front fog light SW at ON position
DRL cancel output D19 ↔ chassis ground 8 V or more β†’ less than 1.0 V Headlight switch ON or Hi beam ON, passing switch ON
Illumination output B8 Pulse output Illumination ON
C16 Pulse output Illumination ON
Key ring illumination A25 Pulse output Illumination ON
Room light output C4 Pulse output Room light ON (doors interlocked)
Map light output D8 Pulse output Map light ON (keyless answer-back, etc.)
Luggage/trunk light output C3 Pulse output Luggage/trunk at open state
Rear defogger relay output A26 ↔ chassis ground 8 V or more β†’ less than 1.0 V Rear defogger SW ON
Wiper deicer relay output D9 ↔ chassis ground 8 V or more β†’ less than 1.0 V Wiper deicer SW ON
Turn/hazard output D18 ↔ chassis ground 8 V or more β†’ less than 1.0 V When answer-back is output
Security horn output A24 ↔ chassis ground 8 V or more β†’ less than 1.0 V When security is operating
Security light D26 Pulse control When security light is illuminating
Answer-back buzzer output A20 ↔ chassis ground 8 V or more β†’ less than 1.0 V When answer-back operates
Immobilizer communication A31 Serial communication (Model without keyless access)
(1) For CAN sleep state, hold on for approx. one minute with ignition OFF and the doors, trunk, and rear gate all closed.
(2) Use an oscilloscope for measurement due to short output time.
RENDER: 1.0x

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