Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2016 Subaru Outback 2.5iFACTORY OEM SERVICE PROCEDURE
Keyless Access Control Module
| Terminal No. | Contents | Measuring condition | Standard | ||
|---|---|---|---|---|---|
| (i75) No. 1 ββ Chassis ground | Ground | Always (1) | Less than 1 Ξ© | ||
| (i75) No. 2 ββ 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 ββ 1 | Start switch input 1 | Push button ignition switch pressed β released(1) | Less than 1 Ξ© β 10 kΞ© or more | ||
| (i75) No. 5 ββ 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 ββ 1 | Start switch character illumination | When illumination of start switch goes off, the headlight is OFF β ON, after setting the illumination control to MAX | Less than 2 V β 9.5 V or more | ||
| (i75) No. 7 ββ Chassis ground | Engine speed | While engine idling | Waveform 2 | ||
| (i75) No. 8 ββ Chassis ground (except for MT model) | Shift P position | Except for shift positions P β Shift position P | 40 kΞ© or more β 200 Ξ© or less | ||
| (i75) No. 9 ββ Chassis ground | Steering lock power supply | Always (1) | 10 kΞ© or more | ||
| (i75) No. 10 | - | - | - | ||
| (i75) No. 11 ββ Chassis ground | IGN2 relay drive | Always (20Β°C) (1) | 74.15 - 460.88 Ξ© | ||
| (i75) No. 12 ββ Chassis ground | IGN1 relay drive | Always (20Β°C) (1) | 50.87 - 72.17 Ξ© | ||
| (i75) No. 13 ββ Chassis ground | Immobilizer amplifier ground | Always (1) | Less than 1 Ξ© | ||
| (i75) No. 14 ββ 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 ββ 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 ββ 1 | Start switch input 2 | Push button ignition switch pressed β released(1) | Less than 1 Ξ© β 10 kΞ© or more | ||
| (i75) No. 18 ββ 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 ββ Chassis ground (MT model) | Clutch switch input | Clutch pedal depressed β Released | 9.5 V or more β 1 V or less | ||
| (i75) No. 21 ββ 1 | Steering lock position input | With ignition switch OFF and shift position P, and with push button ignition switch pressed, Steering lock β Steering unlock | 9.5 V or more β 1.2 V or less | ||
| (i75) No. 22 | - | Β | Β | ||
| (i75) No. 23 ββ Chassis ground | ACC relay drive | Always (20Β°C) (1) | 152.61 - 216.5 Ξ© | ||
| (i75) No. 24 ββ 1 | +B power supply 1 (main) | Always (1) | 9.5 - 16 V | ||
| (i241) No. 1 ββ 21 | Front interior antenna - | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 2 ββ 21 | Front interior antenna + | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 3 ββ 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 β Pulse output detected | ||
| (i241) No. 4 ββ 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 β Pulse output detected | ||
| (i241) No. 5 ββ 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 β Pulse output detected | ||
| (i241) No. 6 ββ 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 β Pulse output detected | ||
| (i241) No. 7 ββ 21 | Passenger's sensor drive power supply | Power OFF β IG ON | 9.5 V or more β less than 2 V | ||
| (i241) No. 8 | - | - | - | ||
| (i241) No. 9 ββ 21 | Driver's sensor drive power supply | Power OFF β IG ON | 9.5 V or more β less than 2 V | ||
| (i241) No. 10 ββ Chassis ground | CAN communication (Hi) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation | ||
| (i241) No. 11 ββ 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 ββ 21 | Rear exterior antenna - | Power OFF, all doors closed, all doors locked, trunk or rear gate opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 16 ββ 21 | Rear exterior antenna + | Power OFF, all doors closed, all doors locked, trunk or rear gate opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 17 ββ 21 | Rear interior antenna - | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 18 ββ 21 | Rear interior antenna + | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 19 ββ 21 | Center interior antenna - | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 20 ββ 21 | Center interior antenna + | All doors closed, power OFF, access key not in passenger room, touch sensor (lock) OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 21 ββ Chassis ground | Ground | Always (1) | Less than 1 Ξ© | ||
| (i241) No. 22 | - | - | - | ||
| (i241) No. 23 ββ Chassis ground | ID code box presence judgment terminal | Always (1) | With ID code box Less than 1 Ξ© | ||
| Without ID code box 1 MΞ© or more | |||||
| (i241) No. 24 ββ 21 | Request switch input | Power OFF, all doors locked, trunk or rear gate lock button OFF β ON | 9.5 V or more β less than 2 V | ||
| (i241) No. 25 ββ 21 | Passenger's lock sensor signal | Power OFF, all doors closed, all doors locked, access key carried, passenger's seat touch sensor (lock) OFF β ON | 9.5 V or more β less than 2 V (β 9.5 V or more) | ||
| (i241) No. 26 ββ 21 | Driver's lock sensor signal | Power OFF, all doors closed, all doors locked, access key carried, driver's seat touch sensor (lock) OFF β ON | 9.5 V or more β less than 2 V (β 9.5 V or more) | ||
| (i241) No. 27 | - | - | - | ||
| (i241) No. 28 ββ 21 | Passenger's unlock sensor signal | Power OFF, all doors closed, all doors locked, access key carried, passenger's seat touch sensor (unlock) OFF β ON | 9.5 V or more β less than 2 V (β 9.5 V or more) | ||
| (i241) No. 29 ββ 21 | Driver's unlock sensor signal | Power OFF, all doors closed, all doors locked, access key carried, driver's seat touch sensor (unlock) OFF β ON | 9.5 V or more β less than 2 V (β 9.5 V or more) | ||
| (i241) No. 30 | - | - | - | ||
| (i241) No. 31 ββ Chassis ground (except for MT model) | Stop light switch input | Brake pedal depressed β released | 9.5 V or more β 1 V or less | ||
| (i241) No. 32 ββ Chassis ground | Vehicle speed signal input | Always | 30 kΞ© or more | ||
| (i241) No. 33 | - | - | - | ||
| (i241) No. 34 ββ 21 (except for MT model) | Neutral switch input | Shift position N β any shift position other than P or N | Less than 2 V β 9.5 V or more | ||
| (i241) No. 35 ββ 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 β 9.5 V or more | ||
| (i241) No. 36 ββ 21 | ACC cutoff input | When brake pedal (AT model) or clutch pedal (MT model) depressed, push button ignition switch pressed (while cranking) β Except when cranking | Less than 2 V β 9.5 V or more | ||
| (i241) No. 37 ββ 21 | Immobilizer collation | Ignition switch ON | 7 V or more β pulse generates temporarily | ||
| (i241) No. 38 | - | - | - | ||
| (i241) No. 39 | - | - | - | ||
| (i241) No. 40 ββ Chassis ground | +B power supply 2 (DCDC backup) | Always (1) | 9.5 - 16 V | ||
|
NOTE:
|
|||||
- Waveform 1
Item Contents Measured terminal (i75) No. 2 ββ 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
Item Contents Measured terminal (i75) No. 7 ββ Chassis ground Equipment setting 5 V/DIV, 100 ms/DIV Measuring condition While engine idling - Waveform 3
Item Contents Measured terminal (i75) No. 14 ββ 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
Item Contents Measured terminal (i75) No. 15 ββ 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
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.
