WIRING SYSTEM > Bulkhead Wiring Harness (In Engine Compartment)
LOCATION
Connector | Connecting to | ||||
No. | Pole | Color | Area | No. | Description |
B3 | 5 | Black | B-2 | Mass air flow and intake air temperature sensor | |
B6 | 2 | Light gray | C-3 | Front ABS wheel speed sensor RH | |
B8 | 5 | Light gray | B-5 | Front wiper motor | |
B10 | 4 | Light gray | C-4 | Pressure switch | |
B11 | 12 | Light gray | B-4 | T4 | Transmission cord (CVT model) |
B12 | 16 | Dark gray | B-4 | T3 | |
B14 | 1 | Black | B-4 | Starter motor | |
B15 | 2 | Light gray | C-5 | Front ABS wheel speed sensor LH | |
B16 | 2 | Gray | B-5 | Brake fluid level switch | |
B21 | 54 | Black | B-3 | E2 | Engine wiring harness |
B22 | 16 | Brown | B-3 | ||
B24 | 2 | Gray | B-3 | T1 | Back-up light switch (MT model) |
B25 | 2 | Brown | C-3 | T2 | Neutral position switch 1 |
B143 | 20 |
| B-5 | M/B | |
B144 | 9 | Brown | B-5 | ||
B145 | 7 | Brown | B-5 | ||
B146 | 2 | Black | C-4 | Front washer motor | |
B147 | 2 | Gray | C-4 | Rear washer motor | |
B164 | 2 | Gray | B-2 | Keyless buzzer | |
B177 | 2 | Gray | B-4 | Wiper deicer | |
B186 | 8 |
| B-5 | M/B | |
B310 | 26 | Black | B-3 | VDC CM (with EyeSight) | |
38 |
| B-3 | VDC CM (without EyeSight) | ||
B321 | 2 | Black | B-3 | Hood switch | |
B360 | 16 | Gray | B-5 | F109 | Through joint connector |
B361 | 14 |
| B-5 | F108 | |
B396 | 2 | Brown | C-4 | Washer fluid level sensor | |
B432 | 8 | Black | C-4 | SBF holder | |
B450 | 10 | Black | B-3 | Power steering CM | |
B451 | 6 | Gray | B-3 | Torque sensor | |
B452 | 2 | Black | B-3 | Power steering CM | |
B523 | 2 | Light gray | C-5 | Battery temperature sensor | |
B538 | 3 | Black | C-4 | Battery current sensor | |
B567 | 26 |
| B-2 | Relay holder | |
B571 | 2 |
| B-5 | M/B | |
| |||||
Connector | Connecting to | ||||
No. | Pole | Color | Area | No. | Description |
AB13 | 2 | Yellow | C-3 | Front sub sensor LH | |
AB16 | 2 | Yellow | B-1 | Front sub sensor RH | |
| |||||

Bulkhead wiring harness (in compartment) Location
Can communication system Wiring diagramDtc b1771 buckle switch
OCCUPANT DETECTION SYSTEM (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B1771 BUCKLE SWITCHDIAGNOSIS START CONDITION:Ignition voltage is 8 V to 16 V.DTC DETECTING CONDITION:• Passenger’s seat buckle switch is faulty.• Passenger’s buckle switch ...
Glossary of tire terminology
Accessory weight
In the context of your Subaru Ascent, accessory weight refers to the total additional
mass of optional equipment beyond standard components. This includes features such
as automatic transmission, power steering, power brakes, power windows, powered
seats, audio systems, ...
Engine
SPECIFICATIONS > CrosstrekENGINEModel2.0 L DOHC non-turboEngine typeHorizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engineValve arrangementDOHCBore ? strokemm (in)84.0 ? 90.0 (3.31 ? 3.54)Displacementcm3 (cu in)1,995 (121.7)Compression ratio10.5Ignition order1 — 3 — 2 — 4 ...