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.
2021 Subaru Crosstrek Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE
Electrical Specification
| Terminal No. | Contents | Measuring condition | Standard | Note |
|---|---|---|---|---|
| 1 | CAN communication line (+) | - | - | - |
| 2 <-> 4 or 17 | Main power supply | Ignition switch ON | Battery voltage | - |
| 4 <-> Chassis ground | GND | Always | 0 V | - |
| 10 <-> 4 or 17 | Backup power supply | Always | Battery voltage | - |
| 13 <-> 4 or 17 | AWD solenoid | READY ON, "P" or "N" range | 0 V | Resistance: 1.6 - 3.8 Ξ© Resistance value at 20Β°C (68Β°F). Value is higher as the temperature increase. |
| READY ON, "D" range, brake ON | Refer to waveform (1). | |||
| 14 | CAN communication line (-) | - | - | - |
| 15 <-> 4 or 17 | Main power supply | Ignition switch ON | Battery voltage | - |
| 17 <-> Chassis ground | GND | Always | 0 V | - |
| 18 <-> 4 or 17 | Self shut-off relay | Ignition switch ON | Less than 1.5 V | - |
| 21 <-> 4 or 17 | Ignition switch | Ignition switch ON | Battery voltage | - |
Factory Service Tools
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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.