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
CAMERA Control Module
| Terminal No. | Contents | Measuring condition | Standard |
|---|---|---|---|
| (B79) No. 1 ←→ Chassis ground | Ignition power supply | Ignition switch ON | Battery voltage |
| (B79) No. 2 | - | - | - |
| (B79) No. 3 | - | - | - |
| (B79) No. 4 ←→ Chassis ground | Power supply for front view monitor camera | Ignition switch ON | 5.5 - 6.5 V |
| (B79) No. 5 ←→ Chassis ground | Power supply for rearview monitor camera | Ignition switch ON | 5.5 - 6.5 V |
| (B79) No. 6 | - | - | - |
| (B79) No. 7 ←→ Chassis ground | Image output signal | Ignition switch ON | 1 Vp-p |
| (B79) No. 8 | - | - | - |
| (B79) No. 9 | - | - | - |
| (B79) No. 10 | - | - | - |
| (B79) No. 11 | - | - | - |
| (B79) No. 12 ←→ Chassis ground | Front view monitor camera image+ | Ignition switch ON | 1 Vp-p |
| (B79) No. 13 ←→ Chassis ground | Rearview monitor camera image- | Always | Continuity to chassis ground |
| (B79) No. 14 ←→ Chassis ground | Rearview monitor camera image+ | Ignition switch ON | 1 Vp-p |
| (B79) No. 15 | - | - | - |
| (B79) No. 16 | - | - | - |
| (B79) No. 17 | - | - | - |
| (B79) No. 18 | - | - | - |
| (B79) No. 19 | - | - | - |
| (B79) No. 20 ←→ Chassis ground | CAN + | Ignition switch ON | Pulse (2.5 V or 3.5 V) |
| (B79) No. 21 ←→ Chassis ground | GND | Always | Continuity to chassis ground |
| (B79) No. 22 | - | - | - |
| (B79) No. 23 | - | - | - |
| (B79) No. 24 ←→ Chassis ground | Front view monitor camera GND | Always | 0 V |
| (B79) No. 25 ←→ Chassis ground | Rearview monitor camera GND | Always | 0 V |
| (B79) No. 26 | - | - | - |
| (B79) No. 27 ←→ Chassis ground | Image output signal- | Always | Continuity to chassis ground |
| (B79) No. 28 | - | - | - |
| (B79) No. 29 | - | - | - |
| (B79) No. 30 | - | - | - |
| (B79) No. 31 | - | - | - |
| (B79) No. 32 ←→ Chassis ground | Front view monitor camera image- | Always | Continuity to chassis ground |
| (B79) No. 33 | - | - | - |
| (B79) No. 34 | - | - | - |
| (B79) No. 35 | - | - | - |
| (B79) No. 36 | - | - | - |
| (B79) No. 37 ←→ Chassis ground | View button | Hi | 3.7 V or more |
| Lo | 1.4 V or less | ||
| (B79) No. 38 | - | - | - |
| (B79) No. 39 | - | - | - |
| (B79) No. 40 ←→ Chassis ground | CAN - | Ignition switch ON | Pulse (2.5 V or 3.5 V) |
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.