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.
SYS.OK|MANUAL.DBβ LIVE
HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSSECURITY AND LOCKS - KEYLESS ACCESS (W/PUSH BUTTON START) (DIAGNOSTICS)CONTROL MODULE I/O SIGNALELECTRICAL SPECIFICATIONKEYLESS ACCESS CONTROL MODULE
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans
Keyless Access Control Module
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Keyless Access Control Module
Except for hybrid modelΒ
TERMINAL AND MEASURING CONDITION
| Terminal No. | Contents | Measuring condition | Standard | ||
|---|---|---|---|---|---|
| (i75) No. 1 (+B2) ββ Chassis ground | +B power supply (SUB) | Always(1) | 9.5 V - 16 V | ||
| (i75) No. 2 | - | - | - | ||
| (i75) No. 3 | - | - | - | ||
| (i75) No. 4 (+B1) ββ (i75) No. 20 (GND1) | +B power supply (MAIN) | Always(1) | 9.5 V - 16 V | ||
| (i75) No. 5 | - | - | - | ||
| (i75) No. 6 (TACH) ββ Chassis ground | Engine speed | While engine idling | Waveform 2 | ||
| (i75) No. 7 (SPD) ββ Chassis ground | Vehicle speed input | Always | 30 kΞ© or more | ||
| (i75) No. 8 (SSW1) ββ (i75) No. 20 (GND1) | Start switch input 1 | Push button ignition switch pressed β released(1) | Less than 1 Ξ© β 10 kΞ© or more | ||
| (i75) No. 9 (SSW2) ββ (i75) No. 20 (GND1) | Start switch input 2 | Push button ignition switch pressed β released(1) | Less than 1 Ξ© β 10 kΞ© or more | ||
| (i75) No. 10 (SLR+) ββ Chassis ground | Steering lock motor power supply signal output | Always(1) | 10 kΞ© or more | ||
| (i75) No. 11 (SLP) ββ (i75) No. 20 (GND1) | 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. 12 (INDW) ββ (i75) No. 20 (GND1) | Indicator output (orange) | With ACC ON or IG ON, brake pedal (CVT model) or clutch pedal (MT model) not depressed | 9.5 V or more | ||
| (i75) No. 13 | - | - | - | ||
| (i75) No. 14 (CLUT) ββ Chassis ground | Clutch input | Clutch pedal depressed β Released | 9.5 V or more β 1 V or less | ||
| (i75) No. 15 | - | - | - | ||
| (i75) No. 16 (ACCD) ββ Chassis ground | ACC relay drive request | Always(1) | Depending on ACC circuit in vehicle | ||
| (i75) No. 17 (TSW5) ββ (i75) No. 20 (GND1) | Request SW input | Power supply OFF, all doors closed, all doors locked, rear gate lock button OFF β ON | 9.5 V or more β Less than 2 V | ||
| (i75) No. 18 (IDW) ββ Chassis ground | ID code box presence judgment | Always(1) | With ID code box: Less than 1 Ξ© Without ID code box: 1 MΞ© or more | ||
| (i75) No. 19 (ACCR) ββ (i75) No. 20 (GND1) | ACC cutoff input | When brake pedal (CVT 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 | ||
| (i75) No. 20 (GND1) ββ Chassis ground | GND | Always(1) | Less than 1 Ξ© | ||
| (i75) No. 21 | - | - | - | ||
| (i75) No. 22 | - | - | - | ||
| (i75) No. 23 (STSW) ββ (i75) No. 20 (GND1) | Starter drive request output | Shift lever is in position P or position N and access key is in passenger compartment. While depressing the brake pedal (CVT model) or clutch pedal (MT model), press the push button ignition switch (engine starts (except for hybrid model) or hybrid system starts (for hybrid model)). | Less than 2 V β 9.5 V or more | ||
| (i75) No. 24 | - | - | - | ||
| (i75) No. 25 (INDS) ββ Chassis ground | Indicator output (green) | With ACC ON or IG ON, brake pedal (CVT model) or clutch pedal (MT model) depressed | 9.5 V or more | ||
| (i75) No. 26 (SWIL) ββ Chassis ground | 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. 27 (IG2D) ββ Chassis ground | IG2 relay drive output | Always(1) | Depending on relay circuit in vehicle | ||
| (i75) No. 28 (IG1D) ββ Chassis ground | IG1 relay drive output | Always(1) | Depending on relay circuit in vehicle | ||
| (i241) No. 1 (CG7B) ββ (i241) No. 17 (GND2) | Luggage room 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 (CLG7) ββ (i241) No. 17 (GND2) | Luggage room 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 (CG6B) ββ (i241) No. 17 (GND2) | 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. 4 (CLG2) ββ (i241) No. 17 (GND2) | 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 (CG1B) ββ (i241) No. 17 (GND2) | 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 (CLG1) ββ (i241) No. 17 (GND2) | 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 (CG8B) ββ (i241) No. 17 (GND2) | Rear exterior antenna - | Power OFF, all doors closed, all doors locked, rear gate opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 8 (CLG8) ββ (i241) No. 17 (GND2) | Rear exterior antenna + | Power OFF, all doors closed, all doors locked, rear gate opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 9 (CLG6) ββ (i241) No. 17 (GND2) | 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. 10 | - | - | - | ||
| (i241) No. 11 | - | - | - | ||
| (i241) No. 12 (CG5B) ββ (i241) No. 17 (GND2) | 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. 13 | - | - | - | ||
| (i241) No. 14 | - | - | - | ||
| (i241) No. 15 (EGIO) ββ (i241) No. 17 (GND2) | Immobilizer collation communication line | Ignition switch ON | 7 V or more β pulse generates temporarily (except for C5 model) | ||
| (i241) No. 16 (CG2B) ββ (i241) No. 17 (GND2) | 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. 17 (GND2) ββ Chassis ground | GND | Always | Less than 1 Ξ© | ||
| (i241) No. 18 (P) ββ Chassis ground | Shift P position input | Except for shift positions P β Shift position P | Depending on shift position internal resistance | ||
| (i241) No. 19 (TXCT) ββ (i241) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal (CVT 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 | ||||
| (i241) No. 20 (LIN) ββ (i241) No. 17 (GND2) | LIN communication | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation | ||
| (i241) No. 21 (VC5) ββ (i241) No. 17 (GND2) | Immobilizer amplifier power supply | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal (CVT model) or clutch pedal (MT model) released. | 1 V or less | ||
| Within 30 seconds after the push button ignition switch is pressed with IGN OFF and access key not in the passenger room | Waveform 4 | ||||
| (i241) No. 22 (CODE) ββ (i241) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal (CVT model) or clutch pedal (MT model) released. | 1 V or less | ||
| Turn to IG 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 | ||||
| (i241) No. 23 | - | - | - | ||
| (i241) No. 24 (AGND) ββ Chassis ground | Immobilizer amplifier GND | Always(1) | Less than 1 Ξ© | ||
| (i241) No. 25 (CLG5) ββ (i241) No. 17 (GND2) | 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) 26 | - | - | - | ||
| (i241) No. 27 (STP1) ββ Chassis ground | Stop light switch input | Brake pedal depressed β released | 9.5 V or more β 1 V or less | ||
| (i241) No. 28 | - | - | - | ||
| (i241) No. 29 (CANL) ββ Chassis ground | CAN communication (L) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation | ||
| (i241) No. 30 (CANH) ββ Chassis ground | CAN communication (H) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation | ||
|
|||||
Hybrid modelΒ
TERMINAL AND MEASURING CONDITION
| Terminal No. | Contents | Measuring condition | Standard | ||
|---|---|---|---|---|---|
| (i75) No. 1 (+B2) ββ Chassis ground | +B power supply (SUB) | Always(1) | 9.5 V - 16 V | ||
| (i75) No. 2 | - | - | - | ||
| (i75) No. 3 | - | - | - | ||
| (i75) No. 4 (+B1) ββ (i75) No. 20 (GND1) | +B power supply (MAIN) | Always(1) | 9.5 V - 16 V | ||
| (i75) No. 5 | - | - | - | ||
| (i75) No. 6 | - | - | - | ||
| (i75) No. 7 (SPD) ββ Chassis ground | Vehicle speed input | Always | 30 kΞ© or more | ||
| (i75) No. 8 (SSW1) ββ (i75) No. 20 (GND1) | Start switch input 1 | Push button ignition switch released β pressed(1) | Less than 1 Ξ© β 10 kΞ© or more | ||
| (i75) No. 9 (SSW2) ββ (i75) No. 20 (GND1) | Start switch input 2 | Push button ignition switch released β pressed(1) | Less than 1 Ξ© β 10 kΞ© or more | ||
| (i75) No. 10 (SLR+) ββ Chassis ground | Steering lock motor power supply signal output | Always(1) | 10 kΞ© or more | ||
| (i75) No. 11 (SLP) ββ (i75) No. 20 (GND1) | 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. 12 (INDW) ββ (i75) No. 20 (GND1) | Indicator output (orange) | With ACC ON or IG ON, brake pedal not depressed | 9.5 V or more | ||
| (i75) No. 13 | - | - | - | ||
| (i75) No. 14 | - | - | - | ||
| (i75) No. 15 (IGBD) ββ Chassis ground | IGB relay drive request | Always(1) | Depending on relay circuit in vehicle | ||
| (i75) No. 16 (ACCD) ββ Chassis ground | ACC relay drive request | Always(1) | Depending on ACC circuit in vehicle | ||
| (i75) No. 17 (TSW5) ββ (i75) No. 20 (GND1) | Request SW input | Power supply OFF, all doors closed, all doors locked, rear gate lock button OFF β ON | 9.5 V or more β Less than 2 V | ||
| (i75) No. 18 (IDW) ββ Chassis ground | ID code box presence judgment | Always(1) | With ID code box: Less than 1 Ξ© Without ID code box: 1 MΞ© or more | ||
| (i75) No. 19 | - | - | - | ||
| (i75) No. 20 (GND1) ββ Chassis ground | GND | Always(1) | Less than 1 Ξ© | ||
| (i75) No. 21 (IGB) ββ Chassis ground | IGB control output | IG ON | 8.5 V - 14 V | ||
| (i75) No. 22 | - | - | - | ||
| (i75) No. 23 (STSW) ββ (i75) No. 20 (GND1) | Starter drive request output | Shift lever is in position P or position N and access key is in passenger room. While depressing the brake pedal, press the push button ignition switch (engine start). | Less than 2 V β 9.5 V or more | ||
| (i75) No. 24 | - | - | - | ||
| (i75) No. 25 (INDS) ββ Chassis ground | Indicator output (green) | With ACC ON or IG ON, brake pedal depressed | 9.5 V or more | ||
| (i75) No. 26 (SWIL) ββ Chassis ground | 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. 27 (IG2D) ββ Chassis ground | IG2 relay drive output | Always(1) | Depending on relay circuit in vehicle | ||
| (i75) No. 28 (IG1D) ββ Chassis ground | IG1 relay drive output | Always(1) | Depending on relay circuit in vehicle | ||
| (i241) No. 1 (CG7B) ββ (i241) No. 17 (GND2) | Luggage room 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 (CLG7) ββ (i241) No. 17 (GND2) | Luggage room 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 (CG6B) ββ (i241) No. 17 (GND2) | 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. 4 (CLG2) ββ (i241) No. 17 (GND2) | 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 (CG1B) ββ (i241) No. 17 (GND2) | 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 (CLG1) ββ (i241) No. 17 (GND2) | 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 (CG8B) ββ (i241) No. 17 (GND2) | Rear exterior antenna - | Power OFF, all doors closed, all doors locked, rear gate opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 8 (CLG8) ββ (i241) No. 17 (GND2) | Rear exterior antenna + | Power OFF, all doors closed, all doors locked, rear gate opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 9 (CLG6) ββ (i241) No. 17 (GND2) | 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. 10 (CG4B) ββ (i241) No. 17 (GND2) | Exterior charger lid antenna - | Power OFF, all doors closed, all doors locked, exterior charger lid opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 11 (CLG4) ββ (i241) No. 17 (GND2) | Exterior charger lid antenna + | Power OFF, all doors closed, all doors locked, exterior charger lid opener button OFF β ON | No pulse output β Pulse output detected | ||
| (i241) No. 12 (CG5B) ββ (i241) No. 17 (GND2) | 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. 13 | - | - | - | ||
| (i241) No. 14 | - | - | - | ||
| (i241) No. 15 (EGIO) ββ (i241) No. 17 (GND2) | Immobilizer collation communication line | Ignition switch ON | 7 V or more β pulse generates temporarily | ||
| (i241) No. 16 (CG2B) ββ (i241) No. 17 (GND2) | 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. 17 (GND2) ββ Chassis ground | GND | Always | Less than 1 Ξ© | ||
| (i241) No. 18 (P) ββ Chassis ground | Shift P position input | Except for shift positions P β Shift position P | Depending on shift position internal resistance | ||
| (i241) No. 19 (TXCT) ββ (i241) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less | ||
| Turn to IG 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 | ||||
| (i241) No. 20 (LIN) ββ (i241) No. 17 (GND2) | LIN communication | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation | ||
| (i241) No. 21 (VC5) ββ (i241) No. 17 (GND2) | Immobilizer amplifier power supply | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less | ||
| Within 30 seconds after the push button ignition switch is pressed with IGN OFF and access key not in the passenger room | Waveform 4 | ||||
| (i241) No. 22 (CODE) ββ (i241) No. 17 (GND2) | Immobilizer signal reception (start switch) | Wait for 30 seconds or more after the door was opened or closed with IGN OFF and the brake pedal released. | 1 V or less | ||
| Within 30 seconds after the push button ignition switch is pressed with IGN OFF and access key not in the passenger room | Waveform 1 | ||||
| (i241) No. 23 | - | - | - | ||
| (i241) No. 24 (AGND) ββ Chassis ground | Immobilizer amplifier GND | Always(1) | Less than 1 Ξ© | ||
| (i241) No. 25 (CLG5) ββ (i241) No. 17 (GND2) | 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) 26 | - | - | - | ||
| (i241) No. 27 (STP1) ββ Chassis ground | Stop light switch input | Brake pedal depressed β released | 9.5 V or more β 1 V or less | ||
| (i241) No. 28 | - | - | - | ||
| (i241) No. 29 (CANL) ββ Chassis ground | CAN communication (L) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation | ||
| (i241) No. 30 (CANH) ββ Chassis ground | CAN communication (H) | ACC ON or IGN ON or power OFF, and open/close the door | Pulse generation | ||
|
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- Waveform 1
Item Contents Measured terminal (i241) No. 22 (CODE) ββ (i241) No. 17 (GND2) Equipment setting 2 V/DIV, 20 ms/DIV Measuring condition Turn to IG 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. 6 (TACH) ββ Chassis ground Equipment setting 5 V/DIV, 100 ms/DIV Measuring condition While engine idling - Waveform 3
Item Contents Measured terminal (i241) No. 19 (TXCT) ββ (i241) No. 17 (GND2) Equipment setting 2 V/DIV, 20 ms/DIV Measuring condition Turn to IG 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 | (i241) No. 21 (VC5) ββ (i241) No. 17 (GND2) |
| 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 |
RENDER: 1.0x
NO RELATED
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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.