Electrical Specification

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.

Contents

Measuring condition

Standard

(i107) No. 1 (+) ←→ Chassis ground (-)

Ignition power supply

Ignition switch: ON

Battery voltage

(i107) No. 2 (+) ←→ Chassis ground (-)

CAN - H (CAN communication line)

Digital signal; cannot be measured

(i107) No. 3 (+) ←→ Chassis ground (-)

CAN - L (CAN communication line)

Digital signal; cannot be measured

(i107) No. 4

(i107) No. 5 (+) ←→ Chassis ground (-)

GND

Always

Resistance 1 Ω or less

(i107) No. 6 (+) ←→ Chassis ground (-)

Sensor and actuator power supply

Ignition switch: ON

5 V

(i107) No. 7 (+) ←→ Chassis ground (-)

Mode door actuator drive output (FACE)

While operating to FACE side

While operating: 12 V While not operating: 0 V

(i107) No. 8 (+) ←→ Chassis ground (-)

Battery power supply

Always

Battery voltage

(i107) No. 9

(i107) No. 10

(i107) No. 11 (+) ←→ Chassis ground (-)

Intake door actuator drive signal (RECIRC)

While operating to RECIRC side

While operating: 12 V While not operating: 0 V

(i107) No. 12

(i107) No. 13 (+) ←→ Chassis ground (-)

Humidity sensor signal (integrated with in vehicle air)

(i107) No. 14 (+) ←→ Chassis ground (-)

Seat heater temperature sensor (passenger's side)

Ignition switch: ON Varies depending on temperature at seat heater

0 - 5 V

(i107) No. 15 (+) ←→ Chassis ground (-)

Seat heater temperature sensor (driver's side)

Ignition switch: ON Varies depending on temperature at seat heater

0 - 5 V

(i107) No. 16 (+) ←→ Chassis ground (-)

Air mix door actuator RH position signal⁽²⁾

Ignition switch: ON Air mix door: Maximum cool position

4.5 V

Ignition switch: ON Air mix door: Maximum hot position

0.5 V

(i107) No. 17 (+) ←→ Chassis ground (-)

Air mix door actuator position signal⁽¹⁾ Or air mix door actuator LH position signal⁽²⁾

Ignition switch: ON Air mix door: Maximum cool position

4.5 V

Ignition switch: ON Air mix door: Maximum hot position

0.5 V

(i107) No. 18 (+) ←→ Chassis ground (-)

Mode door actuator drive output (DEF)

While operating to DEF side

While operating: 12 V While not operating: 0 V

(i107) No. 19 (+)

(i107) No. 20 (+) ←→ Chassis ground (-)

ACC power supply

Ignition switch: ACC

Battery voltage

(i107) No. 21 (+) ←→ Chassis ground (-)

Intake door actuator drive signal (FRESH)

While operating to FRESH side

While operating: 12 V While not operating: 0 V

(i107) No. 22 (+) ←→ Chassis ground (-)

Evaporator sensor

Ignition switch: ON

1 - 4.5 V (changes depending on evaporator temperature)

(i107) No. 23 (+) ←→ Chassis ground (-)

In-vehicle sensor

Ignition switch: ON

25°C (77°F): Approx. 1.5 V 40°C (104°F): Approx. 1 V

(i107) No. 24 (+) ←→ Chassis ground (-)

Pressure sensor

Ignition switch: ON

0.5 - 4.9 V

(i107) No. 25 (+) ←→ Chassis ground (-)

Heater core rear sensor

Ignition switch: ON (Fluctuates depending on temperature after the heater core)

0 - 5 V

(i107) No. 26 (+) ←→

Chassis ground (-)

Sunload sensor Ignition switch: ON Sunlight is contacting sensor

With sunload: Less than 4.9 V Without sunload: 0 V

(i108) No. 1 (+) ←→ Chassis ground (-)

Seat heater (driver's side)

Ignition switch: ON Seat heater switch: ON

0 V or battery voltage

(i108) No. 2 (+) ←→ Chassis ground (-)

Seat heater (driver's side) GND

Ignition switch: ON Seat heater switch: ON

Resistance 1 Ω or less

(i108) No. 3 (+) ←→ Chassis ground (-)

Blower motor voltage feedback

Ignition switch: ON Blower switch: ON

0 - 16 V

(i108) No. 4 (+) ←→ Chassis ground (-)

Blower motor control signal

Ignition switch: ON Blower switch: ON

9 V

(i108) No. 5 (+) ←→ Chassis ground (-)

Seat heater (passenger's side)

Ignition switch: ON Seat heater switch: ON

0 V or battery voltage

(i108) No. 6 (+) ←→ Chassis ground (-)

Seat heater (driver's side) GND

Ignition switch: ON Seat heater switch: ON

Resistance 1 Ω or less

(i108) No. 7 (+) ←→ Chassis ground (-)

Sensor GND

Always

Resistance 1 Ω or less

(i108) No. 8 (+) ←→ Chassis ground (-)

Variable compressor solenoid valve drive signal

Ignition switch: ON Blower switch: ON A/C switch: ON

2 - 12 V (Duty output)

(i108) No. 9

(i108) No. 10

(i108) No. 11 (+) ←→ Chassis ground (-)

PTC heater 2 relay drive signal

In operation

1 V or less

(i108) No. 12 (+) ←→ Chassis ground (-)

PTC heater 3 relay drive signal

In operation

1 V or less

(i108) No. 13

(i108) No. 14

(i108) No. 15

(i108) No. 16 (+) ←→ Chassis ground (-)

Air mix door actuator RH drive signal (HOT)⁽²⁾

While operating to HOT side

While operating: 12 V While not operating: 0 V

(i108) No. 17 (+) ←→ Chassis ground (-)

Mode door actuator position signal

Ignition switch: ON Mode door: FACE position

4.5 V

Ignition switch: ON Mode door: DEF position

0.5 V

(i108) No. 18 (+) ←→ Chassis ground (-)

Flow sensor

Ignition switch: ON Blower switch: ON A/C switch: ON

0.3 - 4.7 V

(i108) No. 19 (+) ←→ Chassis ground (-)

Intake door actuator position signal

Ignition switch: ON FRESH/RECIRC door: RECIRC position

4 V

Ignition switch: ON FRESH/RECIRC door: FRESH position

1 V

(i108) No. 20 (+) ←→ Chassis ground (-)

PTC heater 1 relay drive signal

In operation

0.7 V or less

(i108) No. 21 (+) ←→ Chassis ground (-)

Blower motor relay drive output

Ignition switch: ON Blower switch: ON

0.7 V or less

(i108) No. 22 (+) ←→ Chassis ground (-)

Air mix door actuator drive signal (HOT)⁽¹⁾ Air mix door actuator LH drive signal (HOT)⁽²⁾

While operating to HOT side

While operating: 12 V While not operating: 0 V

(i108) No. 23 (+) ←→ Chassis ground (-)

Air mix door actuator (driver's seat) drive signal (COOL) Air mix door actuator drive signal (COOL)⁽¹⁾ Air mix door actuator LH drive signal (COOL)⁽²⁾

While operating to COOL side

While operating: 12 V While not operating: 0 V

(i108) No. 24 (+) ←→ Chassis ground (-)

Air mix door actuator RH drive signal (COOL)⁽²⁾

While operating to COOL side

While operating: 12 V While not operating: 0 V

⁽¹⁾	Without left/right independent air conditioning function

⁽²⁾	With left/right independent air conditioning function