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 Outback BaseFACTORY OEM SERVICE PROCEDURE
Seat Ventilation Control Module
| Terminal No. | Contents | Measuring condition | Standard |
|---|---|---|---|
| (St41) No. 1 | - | - | - |
| (St41) No. 2 (+) β Chassis ground (-) | Blower motor control signal (passenger's side) | Digital signal; cannot be measured | - |
| (St41) No. 3 | - | - | - |
| (St41) No. 4 | - | - | - |
| (St41) No. 5 (+) β Chassis ground (-) | Blower motor control signal (driver's side) | Digital signal; cannot be measured | - |
| (St41) No. 6 (+) β Chassis ground (-) | ACC power supply | Ignition switch: ACC | Battery voltage |
| (St41) No. 7 | - | - | - |
| (St41) No. 8 | - | - | - |
| (St41) No. 9 (+) β Chassis ground (-) | B CAN L | Cannot be measured | - |
| (St41) No. 10 (+) β Chassis ground (-) | B-CAN H | Cannot be measured | - |
| (St41) No. 11 | - | - | - |
| (St41) No. 12 | - | - | - |
| (St41) No. 13 | - | - | - |
| (St41) No. 14 (+) β Chassis ground (-) | GND | Always | Resistance 1 Ξ© or less |
Factory Service Tools
Use the Manual With the Right Hardware
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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.