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.
2024 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
RAB Control Module
| Terminal No. | Contents | Measuring condition | Standard |
|---|---|---|---|
| (L81) No. 1 ββ Chassis ground | Ignition power supply | Ignition switch ON | Battery voltage |
| (L81) No. 2 ββ Chassis ground | GND | Always | 1 Ξ© or less |
| (L81) No. 3 | - | - | - |
| (L81) No. 4 | Power unit CAN L | - | - |
| (L81) No. 5 | (H)_Advanced safety CAN H | - | - |
| (L81) No. 6 | - | - | - |
| (L81) No. 7 | - | - | - |
| (L81) No. 8 | Sonar sensor communication line (left corner -) | - | - |
| (L81) No. 9 | Sonar sensor communication line (right inner -) | - | - |
| (L81) No. 10 | - | - | - |
| (L81) No. 11 | Sonar sensor communication line (left inner +) | - | - |
| (L81) No. 12 | Sonar sensor communication line (right corner +) | - | - |
| (L81) No. 13 ββ Chassis ground | Battery power supply | Always | Battery voltage |
| (L81) No. 14 | - | - | - |
| (L81) No. 15 | - | - | - |
| (L81) No. 16 | Power unit CAN H | - | - |
| (L81) No. 17 | - | - | - |
| (L81) No. 18 | (H)_Advanced safety CAN L | - | - |
| (L81) No. 19 | - | - | - |
| (L81) No. 20 | - | - | - |
| (L81) No. 21 | Sonar sensor communication line (left inner -) | - | - |
| (L81) No. 22 | Sonar sensor communication line (right corner -) | - | - |
| (L81) No. 23 | Sonar sensor communication line (left corner +) | - | - |
| (L81) No. 24 | Sonar sensor communication line (right inner +) | - | - |
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.