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.
2020 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
RAB Control Module
| Terminal No. | Contents | Measuring condition | Standard |
|---|---|---|---|
| (L81) No. 1 ββ Chassis ground: | (H)_Advanced safety CAN L | - | - |
| (L81) No. 2 ββ Chassis ground: | (H)_Advanced safety CAN H | - | - |
| (L81) No. 3 ββ Chassis ground: | Ground | Always | 1 Ξ© or less |
| (L81) No. 4 | Sonar sensor communication line (right corner) | - | - |
| (L81) No. 5 | Sonar sensor communication line (right inner) | - | - |
| (L81) No. 6 | Sonar sensor communication line (left inner) | - | - |
| (L81) No. 7 | Sonar sensor communication line (left corner) | - | - |
| (L81) No. 8 | - | - | - |
| (L81) No. 9 ββ Chassis ground: | Sonar sensor ground | Always | 1 Ξ© or less |
| (L81) No. 10 | - | - | - |
| (L81) No. 11 | - | - | - |
| (L81) No. 12 | - | - | - |
| (L81) No. 13 | - | - | - |
| (L81) No. 14 ββ Chassis ground: | Ignition power supply | Ignition switch ON | Battery voltage |
| (L81) No. 15 | - | - | - |
| (L81) No. 16 | - | - | - |
| (L81) No. 17 | - | - | - |
| (L81) No. 18 | - | - | - |
| (L81) No. 19 | - | - | - |
| (L81) No. 20 | - | - | - |
| (L81) No. 21 | - | - | - |
| (L81) No. 22 ββ Chassis ground: | Sonar sensor power supply | Ignition switch ON | Battery voltage |
| (L81) No. 23 | - | - | - |
| (L81) No. 24 | - | - | - |
| (L81) No. 25 | - | - | - |
| (L81) No. 26 | - | - | - |
| (L82) No. 1 | - | - | - |
| (L82) No. 2 ββ Chassis ground: | Power unit 1 CAN L | - | - |
| (L82) No. 3 ββ Chassis ground: | Power unit 1 CAN H | - | - |
| (L82) No. 4 | - | - | - |
| (L82) No. 5 | - | - | - |
| (L82) No. 6 | - | - | - |
| (L82) No. 7 | - | - | - |
| (L82) No. 8 | - | - | - |
| (L82) No. 9 | - | - | - |
| (L82) No. 10 | - | - | - |
| (L82) No. 11 | - | - | - |
| (L82) No. 12 | - | - | - |
| (L82) No. 13 | - | - | - |
| (L82) No. 14 | - | - | - |
| (L82) No. 15 | - | - | - |
| (L82) No. 16 | - | - | - |
| (L82) No. 17 | - | - | - |
| (L82) No. 18 | - | - | - |
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.
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