Electrical Specification
CONNECTOR TERMINAL REFERENCE CHART
| Description | Connector No. | Terminal No. | Signal (V) | Note |
|---|---|---|---|---|
| Ignition switch ON (engine OFF) | ||||
| System control power supply | B281 | 2 | 10-13V | Always |
| Backup power supply | B280 | 7 | 10-13V | Always |
| Ignition power supply | i84 | 1 | 10-13V | Ignition ON |
| ACC power supply | i84 | 24 | 10-13V | ACC ON |
| Ground | i84 | 21 | 0V | Always |
| B281 | 9 | |||
| B281 | 8 | |||
| B280 | 22 | |||
| Key warning switch | B281 | 7 | 10-13V | When ignition key is inserted |
| Stop light switch | B281 | 23 | 10 - 13V | When brake pedal is depressed |
| Illumination control switch (Bright switch) | i84 | 30 | 10-13 V (at dimmer ON) | Cancel the extinction of the clock and audio illumination |
| Illumination control switch | i84 | 30 | 10-13 V (at dimmer ON) | Extinct the clock and audio illumination |
| Illumination volume (Vi1) | i84 | 10 | 4.5 - 5.5 V | Small light ON |
| Illumination volume (Vi2) | i84 | 2 | 0.5 - 4.5 V | - |
| Illumination volume (Vi3) | i84 | 25 | 0V | Ground circuit |
| Illumination output | i84 | 5 | 10-13V | Small light ON |
| Front fog light input | B281 | 17 | 10-13V | Front fog light ON |
| Door switch input driver's seat | i84 | 19 | Less than 1 V (10 - 13 V at OFF) | Driver's door open (ON) |
| Door switch input passenger's seat | i84 | 32 | Less than 1 V (10 - 13 V at OFF) | Passenger's door open (ON) |
| Door switch input rear RH seat | i84 | 18 | Less than 1 V (10 - 13 V at OFF) | Rear RH door open (ON) |
| Door switch input rear LH seat | i84 | 31 | Less than 1 V (10 - 13 V at OFF) | Rear LH door open (ON) |
| Door switch trunk/rear gate | i84 | 17 | Less than 1 V (10 - 13 V at OFF) | Trunk/rear gate open (ON) |
| Manual switch (LOCK) | i84 | 15 | Less than 1 Ω | Door lock switch ON |
| Manual switch (UNLOCK) | i84 | 29 | Less than 1 Ω | Door unlock switch ON |
| Door lock power supply | i84 | 34 | 10 - 13V | Always |
| All door lock output | i84 | 7 | 10-13V | Manual lock switch, door key switch ON |
| Driver's door UNLOCK output | i84 | 23 | 10-13V | Driver's seat unlock signal ON |
| All door UNLOCK output | i84 | 8 | 10-13V | ALL door unlock signals ON |
| Rear gate UNLOCK output | i84 | 22 | 10-13V | When the rear gate release switch is ON with all seats unlocked |
| Rear gate release switch | B281 | 22 | 0V | Rear gate release switch ON |
| Key/shift lock power supply | B281 | 1 | 10-13V | Always |
| Shift lock output | B280 | 6 | 10-13V | Key-lock warning SW ON, ignition switch ON, shift position "P" range, foot brake ON (AT Only) |
| Key locking output | B280 | 5 | 10-13V | Other than "P" range, ignition switch ON |
| Wiper deicer switch | i84 | 14 | 0V | Wiper deicer switch ON |
| Wiper deicer relay output | B280 | 14 | 0V | Wiper deicer relay ON |
| Rear defogger switch | i84 | 28 | 0V | Rear defogger switch ON |
| Rear defogger relay output | B281 | 16 | 0V | Rear defogger relay ON |
| Shift switch (ON) | B281 | 26 | 0V | At shift lever manual mode |
| Shift switch (UP) | B281 | 15 | 0V | At shift lever manual mode UP |
| Shift switch (DOWN) | B281 | 25 | 0V | At shift lever manual mode DOWN |
| Shift button switch | B281 | 14 | 0V | When shift lever release button is operated |
| P range switch | B281 | 13 | 0V | Shift range P position |
| Impact sensor | B281 | 5 | 8 V or more | Impact sensor ON (Model with impact sensor) |
| Fuel level sensor | B281 | 19 | 0-102.3 Ω | Resistance differs according to the fuel level (Displays resistance combining level gauge main and sub) |
| Ambient sensor | B281 | 3 | 0.5 - 4.5 V | SIG |
| B281 | 10 | 0V | GND | |
| Seat belt switch (Driver's seat) | i84 | 4 | 0 V | When driver's seat belt is worn |
| Seat belt switch (Passenger's seat) | i84 | 13 | 0 V | When passenger's seat belt is worn |
| Seat belt warning light (Driver's seat) | i84 | 20 | 0V | When driver's seat belt is worn |
| Seat belt warning light (Passenger's seat) | B280 | 27 | 0V | When passenger's seat belt is worn |
| Rear wiper switch (ON) | B281 | 6 | 0V | Rear wiper switch ON |
| Rear wiper switch (INT) | B281 | 18 | 0V | Rear wiper switch ON |
| Rear washer switch | B281 | 27 | 0V | Rear washer switch ON |
| Rear wiper power supply | B280 | 21 | 10-13V | Ignition switch ON |
| Rear wiper ON output | B280 | 1 | 10-13V | Rear wiper switch ON |
| Rear wiper return | B280 | 8 | 0V | At wiper reversing |
| 1-8 | 0V | |||
| Room light output | B280 | 3 | 0V | When LOCK, UNLOCK with keyless entry |
| Map light output | B280 | 2 | 0V | When using map light |
| 9 | 0V | When using map light | ||
| Key ring illumination output | B280 | 4 | 0V | Ignition key removed, driver's door open |
| Turn hazard output | B280 | 12 | 0V | When operating keyless entry answer back |
| Keyless buzzer output | i84 | 6 | 10-13V | When operating keyless entry answer back |
| Security horn output | B280 | 11 | 0V | When operating security horn |
| Security indicator light | i84 | 33 | 0V | At ignition key removed, immobilizer operating |
| TPMS registration check signal input | B281 | 4 | 0V | When inputting registration check signal |
| Keyless communication | i84 | 9 | Serial communication | At keyless entry signal received |
| High-speed CAN circuit (Hi) | B280 | 20 | Between B20 - B30 Serial communication | At communicating (Sending and receiving) |
| High-speed CAN circuit (Lo) | B280 | 30 | ||
| Low-speed CAN circuit 1 (Hi) | i84 | 27 | Between A25 - A26 Serial communication | At communicating (Sending and receiving) |
| Low-speed CAN circuit 1(Lo) | i84 | 26 | ||
| Low-speed CAN circuit 2 (Hi) | B280 | 26 | Between B25 - B27 Serial communication | At communicating (Sending and receiving) (Model with auto A/C) |
| Low-speed CAN circuit 2(Lo) | B280 | 25 | ||
| Immobilizer antenna | B281 | 20 - 21 | Serial communication | |
| Immobilizer communication (Main) | B280 | 18 (Back-up 28) | Serial communication | |
| Subaru Select Monitor communication | B280 | 19 | Serial communication |