Keyless Access Control Module

WARNING: This page is about a different car, the 2016 Subaru Outback and 2016 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Keyless Access Control Module I/O Signal Connector Terminal Identification

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.

Contents

Measuring condition

Standard

(i75) No. 1 ←→ Chassis ground

Ground

Always ⁽¹⁾

Less than 1 Ω

(i75) No. 2 ←→ 1

Immobilizer signal reception (ignition switch)

Wait for 30 seconds or more after the door was opened or closed with IG OFF and the brake pedal (except for MT model) or clutch pedal (MT model) released.

1 V or less

Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch. (with the access key battery removed)

Waveform 1

(i75) No. 3

(i75) No. 4 ←→ 1

Start switch input 1

Push button ignition switch pressed → released⁽¹⁾

Less than 1 Ω → 10 kΩ or more

(i75) No. 5 ←→ 1

Indicator output (orange)

With ACC ON or IG ON, brake pedal (AT model) or clutch pedal (MT model) not depressed

9.5 V or more

(i75) No. 6 ←→ 1

Start switch character illumination

When illumination of start switch goes off, the headlight is OFF → ON, after setting the illumination control to MAX

Less than 2 V → 9.5 V or more

(i75) No. 7 ←→ Chassis ground

Engine speed

While engine idling

Waveform 2

(i75) No. 8 ←→ Chassis ground (except for MT model)

Shift P position

Except for shift positions P → Shift position P

40 kΩ or more → 200 Ω or less

(i75) No. 9 ←→ Chassis ground

Steering lock power supply

Always ⁽¹⁾

10 kΩ or more

(i75) No. 10

(i75) No. 11 ←→ Chassis ground

IGN2 relay drive

Always (20°C) ⁽¹⁾

74.15 - 460.88 Ω

(i75) No. 12 ←→ Chassis ground

IGN1 relay drive

Always (20°C) ⁽¹⁾

50.87 - 72.17 Ω

(i75) No. 13 ←→ Chassis ground

Immobilizer amplifier ground

Always ⁽¹⁾

Less than 1 Ω

(i75) No. 14 ←→ 1

Immobilizer signal transmission (ignition switch)

Wait for 30 seconds or more after the door was opened or closed with IG OFF and the brake pedal (except for MT model) or clutch pedal (MT model) released.

1 V or less

Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch. (with the access key battery removed)

Waveform 3

(i75) No. 15 ←→ 1

Immobilizer amplifier power supply

Wait for 30 seconds or more after the door was opened or closed with IG OFF and the brake pedal (except for MT model) or clutch pedal (MT model) released.

1 V or less

Within 30 seconds after the push button ignition switch is pressed with IG OFF and access key not in the passenger room

Waveform 4

(i75) No. 16

(i75) No. 17 ←→ 1

Start switch input 2

Push button ignition switch pressed → released⁽¹⁾

Less than 1 Ω → 10 kΩ or more

(i75) No. 18 ←→ 1

Indicator output (green)

Depress the brake pedal (except for MT models) or clutch pedal (MT models) with the access key in the passenger room.

9.5 V or more

(i75) No. 19

(i75) No. 20 ←→ Chassis ground (MT model)

Clutch switch input

Clutch pedal depressed → Released

9.5 V or more → 1 V or less

(i75) No. 21 ←→ 1

Steering lock position input

With ignition switch OFF and shift position P, and with push button ignition switch pressed, Steering lock → Steering unlock

9.5 V or more → 1.2 V or less

(i75) No. 22

(i75) No. 23 ←→ Chassis ground

ACC relay drive

Always (20°C) ⁽¹⁾

152.61 - 216.5 Ω

(i75) No. 24 ←→ 1

+B power supply 1 (main)

Always ⁽¹⁾

9.5 - 16 V

(i241) No. 1 ←→ 21

Front interior antenna -

All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON

No pulse output → Pulse output detected

(i241) No. 2 ←→ 21

Front interior antenna +

All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON

No pulse output → Pulse output detected

(i241) No. 3 ←→ 21

Passenger side external antenna -

Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room

No pulse output → Pulse output detected

(i241) No. 4 ←→ 21

Passenger side external antenna +

Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room

No pulse output → Pulse output detected

(i241) No. 5 ←→ 21

Driver side external antenna +

Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room

No pulse output → Pulse output detected

(i241) No. 6 ←→ 21

Driver side external antenna -

Power OFF, all doors closed, all doors locked by lock operation with wireless remote control, access key not in passenger room

No pulse output → Pulse output detected

(i241) No. 7 ←→ 21

Passenger's sensor drive power supply

Power OFF → IG ON

9.5 V or more → less than 2 V

(i241) No. 8

(i241) No. 9 ←→ 21

Driver's sensor drive power supply

Power OFF → IG ON

9.5 V or more → less than 2 V

(i241) No. 10 ←→ Chassis ground

CAN communication (Hi)

ACC ON or IGN ON or power OFF, and open/close the door

Pulse generation

(i241) No. 11 ←→ Chassis ground

CAN communication (Lo)

ACC ON or IGN ON or power OFF, and open/close the door

Pulse generation

(i241) No. 12

(i241) No. 13

LIN communication

ACC ON or IGN ON or power OFF, and open/close the door

Pulse generation

(i241) No. 14

(i241) No. 15 ←→ 21

Rear exterior antenna -

Power OFF, all doors closed, all doors locked, trunk or rear gate opener button OFF → ON

No pulse output → Pulse output detected

(i241) No. 16 ←→ 21

Rear exterior antenna +

Power OFF, all doors closed, all doors locked, trunk or rear gate opener button OFF → ON

No pulse output → Pulse output detected

(i241) No. 17 ←→ 21

Rear interior antenna -

All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON

No pulse output → Pulse output detected

(i241) No. 18 ←→ 21

Rear interior antenna +

All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON

No pulse output → Pulse output detected

(i241) No. 19 ←→ 21

Center interior antenna -

All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON

No pulse output → Pulse output detected

(i241) No. 20 ←→ 21

Center interior antenna +

All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF → ON

No pulse output → Pulse output detected

(i241) No. 21 ←→ Chassis ground

Ground

Always ⁽¹⁾

Less than 1 Ω

(i241) No. 22

(i241) No. 23 ←→ Chassis ground

ID code box presence judgment terminal

Always ⁽¹⁾

With ID code box Less than 1 Ω

Without ID code box 1 MΩ or more

(i241) No. 24 ←→ 21

Request switch input

Power OFF, all doors locked, trunk or rear gate lock button OFF → ON

9.5 V or more → less than 2 V

(i241) No. 25 ←→ 21

Passenger's lock sensor signal

Power OFF, all doors closed, all doors locked, access key carried, passenger's seat touch sensor (lock) OFF → ON

9.5 V or more → less than 2 V (→ 9.5 V or more)

(i241) No. 26 ←→ 21

Driver's lock sensor signal

Power OFF, all doors closed, all doors locked, access key carried, driver's seat touch sensor (lock) OFF → ON

9.5 V or more → less than 2 V (→ 9.5 V or more)

(i241) No. 27

(i241) No. 28 ←→ 21

Passenger's unlock sensor signal

Power OFF, all doors closed, all doors locked, access key carried, passenger's seat touch sensor (unlock) OFF → ON

9.5 V or more → less than 2 V (→ 9.5 V or more)

(i241) No. 29 ←→ 21

Driver's unlock sensor signal

Power OFF, all doors closed, all doors locked, access key carried, driver's seat touch sensor (unlock) OFF → ON

9.5 V or more → less than 2 V (→ 9.5 V or more)

(i241) No. 30

(i241) No. 31 ←→ Chassis ground (except for MT model)

Stop light switch input

Brake pedal depressed → released

9.5 V or more → 1 V or less

(i241) No. 32 ←→ Chassis ground

Vehicle speed signal input

Always

30 kΩ or more

(i241) No. 33

(i241) No. 34 ←→ 21 (except for MT model)

Neutral switch input

Shift position N → any shift position other than P or N

Less than 2 V → 9.5 V or more

(i241) No. 35 ←→ 21

Starter drive request

Shift lever is in position P or position N and access key is in passenger compartment. While depressing the brake pedal (AT model) or clutch pedal (MT model), press the push button ignition switch (engine starts).

Less than 2 V → 9.5 V or more

(i241) No. 36 ←→ 21

ACC cutoff input

When brake pedal (AT model) or clutch pedal (MT model) depressed, push button ignition switch pressed (while cranking) → Except when cranking

Less than 2 V → 9.5 V or more

(i241) No. 37 ←→ 21

Immobilizer collation

Ignition switch ON

7 V or more → pulse generates temporarily

(i241) No. 38

(i241) No. 39

(i241) No. 40 ←→ Chassis ground

+B power supply 2 (DCDC backup)

Always ⁽¹⁾

9.5 - 16 V

NOTE:

⁽¹⁾	Perform while the control module connector is disconnected.

Waveform 1

Fig 2: Control Module Signal Waveform 1

Courtesy of SUBARU OF AMERICA, INC.

Item	Contents
Measured terminal	(i75) No. 2 ←→ 1
Equipment setting	2 V/DIV, 20 ms/DIV
Measuring condition	Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch (with the access key battery removed).

Waveform 2

Fig 3: Control Module Signal Waveform 2

Courtesy of SUBARU OF AMERICA, INC.

Item	Contents
Measured terminal	(i75) No. 7 ←→ Chassis ground
Equipment setting	5 V/DIV, 100 ms/DIV
Measuring condition	While engine idling

Waveform 3

Fig 4: Control Module Signal Waveform 3

Courtesy of SUBARU OF AMERICA, INC.

Item	Contents
Measured terminal	(i75) No. 14 ←→ 1
Equipment setting	2 V/DIV, 20 ms/DIV
Measuring condition	Turn the ignition switch to OFF and with the access key near the push button ignition switch, press the push button ignition switch (with the access key battery removed).

Waveform 4

Fig 5: Control Module Signal Waveform 4

Courtesy of SUBARU OF AMERICA, INC.

Item	Contents
Measured terminal	(i75) No. 15 ←→ 1
Equipment setting	2 V/DIV, 200 ms/DIV
Measuring condition	Within 30 seconds after the push button ignition switch is pressed with IG OFF and access key not in the passenger room