Electrical Specification

Fig 1: Identifying Control Module Connector Terminals

Courtesy of SUBARU OF AMERICA, INC.

CONNECTOR TERMINAL REFERENCE

Description

Connector No.

Terminal No.

Signal (V or Ω)

Note

Ignition switch ON (engine OFF)

Ignition power supply (rear wiper)

B280

5 ← → chassis ground

Less than 1.5 V → 10 - 13 V

Ignition ON

Battery power supply (shift lock/key lock)

B281

6 ← → chassis ground

10 - 13V

Always

Battery power supply (door lock)

i171

1 ← → chassis ground

10 - 13V

Always

Battery power supply (control)

i84

6 ← → chassis ground

10 - 13V

Always

GND

B280

1 ← → chassis ground

Less than 1.5

V Always

B281

31 ← → chassis ground

i84

1 ← → chassis ground

M71

29 ← → chassis ground

Battery power supply (back-up)

B281

7 ← → chassis ground

10 - 13V

Always

Ignition power supply

M71

17 ← → chassis ground

Less than 1.5 V → 10 - 13 V

Ignition ON

ACC power supply

i171

25 ← → chassis ground

Less than 1.5 V → 10 - 13 V

ACC ON

Key-in switch

B280

4 ← → chassis ground

Less than 1.5 V → 10 - 13 V

When key inserted

P range SW

B281

21 ← → chassis ground

8 V or more → less than 1.5 V

Shift lever shifted from P to other than P

Stop light SW

B280

10 ← → chassis ground

Less than 1.5V → 8V

Stop light switch ON

Door SW (driver's)

i84

14 ← → chassis ground

8 V or more → less than 1.5 V

Front right door open

Door SW (passenger's)

i84

13 ← → chassis ground

8 V or more → less than 1.5 V

Front left door open

Door SW (rear right)

i84

25 ← → chassis ground

8 V or more → less than 1.5 V

Rear right door open

Door SW (rear left)

i84

24 ← → chassis ground

8 V or more → less than 1.5 V

Rear left door open

Rear gate SW

B281

303 ← → chassis ground

8 V or more → less than 1.5 V

Rear gate open (wagon model)

Trunk SW

i84

33 ← → chassis ground

8 V or more → less than 1.5 V

Trunk open (sedan model)

Request SW (driver's)

i171

14 ← → chassis ground

8 V or more → less than 1.5 V

Request switch ON

Opener SW (trunk/rear gate)

i84

10 ← → chassis ground

8 V or more → less than 1.5 V

Rear gate/trunk opener switch ON

Manual switch (LOCK)

i84

9 ← → chassis ground

8 V or more → less than 1.5 V

Door lock switch ON

Manual switch (UNLOCK)

i84

20 ← → chassis ground

8 V or more → less than 1.5 V

Door unlock switch ON

Door lock status switch (driver's)

i84

Less than 1 Ω

Door in UNLOCK status

Door lock status switch (passenger's)

i84

Less than 1 Ω

Door in UNLOCK status

Door lock status switch (driver's)

i84

12 ← → chassis ground

8 V or more → less than 1.5 V

Door in UNLOCK status

Door lock status switch (passenger's)

i84

23 ← → chassis ground

8 V or more → less than 1.5 V

Door in UNLOCK status

TPMS

i84

Less than 1 Ω

At answer-back of transmitter registration

Lighting AUTO

B281

16 ← → chassis ground

8 V or more → less than 1.5 V

Switch at AUTO position

Lighting II

B280

34 ← → chassis ground

8 V or more → less than 1.5 V

Switch at II position

B281

34 ← → chassis ground

Lighting I

B281

17 ← → chassis ground

8 V or more → less than 1.5 V

Switch at I position

Dimmer passing

B281

25 ← → chassis ground

8 V or more → less than 1.5 V

Switch at passing position

Dimmer Hi beam

B281

15 ← → chassis ground

8 V or more → less than 1.5 V

Switch at Hi beam position

Front fog light SW

B281

26 ← → chassis ground

8 V or more → less than 1.5 V

Front fog light switch ON

Front wiper Lo

B281

11 ← → chassis ground

Less than 1.5 V → 8 V or more

Switch at Lo position

Front wiper Hi

B281

23 ← → chassis ground

Less than 1.5 V → 8 V or more

Switch at Hi position

B280

28 ← → chassis ground

Rear wiper SW ON

B280

12 ← → chassis ground

8 V or more → less than 1.5 V

Switch at ON position

Rear wiper SW INT

B280

22 ← → chassis ground

8 V or more → less than 1.5 V

Switch at INT position

Front washer SW

B281

32 ← → chassis ground

8 V or more → less than 1.5 V

Switch at ON position

Rear washer SW

B280

32 ← → chassis ground

8 V or more → less than 1.5 V

Switch at ON position

Illumination SW(VM)

i171

12 ← → chassis ground

Approx. 5 V

While clearance light illuminates

Illumination SW (Vi2)

i171

22 ← → chassis ground

0.3 - 4.5 V

Illumination SW (Vi3)

M71

28 ← → chassis ground

Less than 1.5 V

Always

Bright SW

i84

21 ← → chassis ground

8 V or more → less than 1.5 V

Switch at ON position

Reverse SW (MT)

B281

22 ← → chassis ground

Less than 1.5 V → 8 V or more

Reverse SW ON

Fuel level sensor

i84

17 ← → chassis ground

2 - 96 Ω

Always

Seat belt SW (driver's)

i84

30 ← → chassis ground

Less than 1.5 V → 8 V or more

Buckle removal → insert

Seat belt SW (passenger's)

i84

29 ← → chassis ground

Less than 1.5 V → 8 V or more

Buckle removal → insert

Impact sensor

i84

28 ← → chassis ground

Less than 1.5 V → 8 V or more

Apply an impact

Hi-speed CAN communication circuit 1 (Hi)

B281

Serial communication

Except for sleep status ⁽¹⁾

Hi-speed CAN communication circuit 1 (Lo)

B281

Hi-speed CAN communication circuit 2 (Hi)

i84

Serial communication

Except for sleep status ⁽¹⁾

Hi-speed CAN communication circuit 2 (Lo)

i84

Low-speed CAN circuit (Hi)

B280

Serial communication

Except for sleep status ⁽¹⁾

Low-speed CAN circuit (Lo)

B280

LIN circuit

i171

Serial communication

Except for sleep status ⁽¹⁾

K-line

B281

Serial communication

Select Monitor communication in progress

Audio/Navigation communication circuit

i171

Serial communication

Keyless entry communication line

M71

Serial communication

Immobilizer antenna

B281

0 - 30 V

Communication with ignition key in progress

B281

Key lock solenoid (LOCK)

B281

4 ← → 3

Less than 1.5 V → 8 V or more

LOCK status ON (AT models) ⁽²⁾

Key lock solenoid (UNLOCK)

B281

3 ← → 4

UNLOCK status ON (AT models) ⁽²⁾

Shift lock solenoid

B281

5 ← → chassis ground

Less than 1.5 V → 8 V or more

When shift lock is operating (AT models)

Rear wiper ON output

B280

7 ← → chassis ground

Less than 0.5 V → 8 V or more

Rear wiper operation in progress

Rear wiper return output

B280

6 ← → chassis ground

Less than 0.5 V → 8 V or more

Wiper reversed operation in progress

Door LOCK output

i171

2 ← → chassis ground

Less than 0.5 V → 8 V or more

When LOCK signal is output

Door UNLOCK output

M71

3 ← → chassis ground

Less than 0.5 V → 8 V or more

When UNLOCK signal is output

Rear gate/trunk UNLOCK output

i171

7 ← → chassis ground

Less than 0.5 V → 8 V or more

When UNLOCK signal is output

Lighting relay power supply

B280

3 ← → chassis ground

10 - 13V

ACC or key-in SW ON

B281

19 ← → chassis ground

10 - 13V

ACC or key-in SW ON

Lighting relay Hi output

B280

17 ← → chassis ground

8 V or more → less than 1.0 V

Dimmer SW at Hi position

Lighting relay Lo output

B281

35 ← → chassis ground

8 V or more → less than 1.0 V

Dimmer SW at Lo position

Lighting Lo relay output 2

B280

27 ← → chassis ground

8 V or more → less than 1.0 V

Lighting II SW at ON position

Lighting relay I output

B280

16 ← → chassis ground

8 V or more → less than 1.0 V

Lighting I SW at ON position

Front fog light output

B280

15 ← → chassis ground

8 V or more → less than 1.0 V

Front fog light SW at ON position

Illumination output

B281

Pulse output

Illumination ON

i84

Pulse output

Illumination ON

Key ring illumination

B280

Pulse output

Illumination ON

Room light output

i84

Pulse output

Room light ON (doors interlocked)

Foot light output

B280

Pulse output

In sync with room light output

Map light output

i171

Pulse output

Map light ON (keyless answer-back, etc.)

Luggage/trunk light output

i84

Pulse output

Luggage/trunk at open state

Front wiper return

B280

2 ← → chassis ground

Less than 1.5 V → 8 V or more

When front wiper is reversed

Front wiper Lo output

B280

8 ← → chassis ground

Less than 1.5 V → 8 V or more

Front wiper Lo SW ON

Front wiper Hi output

B281

27 ← → chassis ground

Less than 1.5 V → 8 V or more

Front wiper Hi SW ON

Front wiper Hi output 2

B280

18 ← → chassis ground

Less than 1.5 V → 8 V or more

Front wiper Hi SW ON

Rear defogger relay output

B280

26 ← → chassis ground

8 V or more → less than 1.0 V

Rear defogger SW ON

Wiper deicer relay output

i171

9 ← → chassis ground

8 V or more → less than 1.0 V

Wiper deicer SW ON

Turn/hazard output

i171

18 ← → chassis ground

8 V or more → less than 1.0 V

When answer-back is output

Security horn output

B280

24 ← → chassis ground

8 V or more → less than 1.0 V

When security is operating

Security light

i171

Pulse control

When security light is illuminating

Impact sensor

i171

26 ← → chassis ground

8 V or more → less than 1.0 V

When security is operating

Answer-back buzzer output

B280

20 ← → chassis ground

8 V or more → less than 1.0 V

When answer-back operates

Immobilizer communication

B280

Serial communication

⁽¹⁾	For CAN sleep state, hold on for approx. one minute with ignition OFF and the doors, trunk, rear gate all closed.

⁽²⁾	Use an oscilloscope for measurement due to short output time.