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.
2019 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE
Power Rear Gate Control Module
| Terminal No. | Contents | Measuring condition | Standard |
|---|---|---|---|
| (R422) No. 1 ββ (R422) No. 9 | Touch sensor | When sensor is ON | 2.7 V or less |
| (R422) No. 2 | - | Β | - |
| (R422) No. 3 ββ (R422) No. 9 | Latch switch | When rear gate is fully closed | 3.7 - 16 V |
| (R422) No. 4 ββ (R422) No. 9 | Courtesy switch | When rear gate is fully closed | 3.7 - 16 V |
| (R422) No. 5 ββ (R422) No. 9 | Sector switch | When rear gate is fully closed | 3.7 - 16 V |
| (R422) No. 6 ββ (R422) No. 9 | Power rear gate inner SW | When power rear gate inner switch is ON | Less than 1 V |
| (R422) No. 7 | - | - | - |
| (R422) No. 8 ββ Chassis ground | Memory height switch | When memory height switch is ON | 1 ess than 1 V |
| (R422) No. 9 | Switch GND | - | - |
| (R422) No. 10 | - | - | - |
| (R422) No. 11 ββ (R422) No. 9 | Ratchet switch | When rear gate is fully closed | Less than 1 V |
| (R422) No. 12 | - | - | - |
| (R422) No. 13 ββ Chassis ground | Power rear gate driver's switch | When driver's switch is ON | Less than 1 V |
| (R422) No. 14 ββ Chassis ground | LIN communication line | - | - |
| (R422) No. 15 ββ Chassis ground | Hazard output | When hazard is not operating | Less than 1 V |
| (R422) No. 16 ββ Chassis ground | Ignition SW | When ignition switch is ON | 9 - 16 V |
| (R423) No. 1 ββ Chassis ground | Battery power supply (+POWER B) | Always | 9 - 16 V |
| (R423) No. 2 ββ Chassis ground | Closer (CLOSE) | When power rear gate auto closer is in pull-in operation | 9 - 16 V |
| (R423) No. 3 ββ Chassis ground | Closer (OPEN) | When power rear gate auto closer is performing the release operation | 9 - 16 V |
| (R423) No. 4 ββ Chassis ground | GND | Always | Less than 1 Ξ© |
| (R423) No. 5 | - | - | - |
| (R423) No. 6 ββ Chassis ground | Battery power supply (+B) | Always | 9 - 16 V |
| (R424) No. 1 | - | - | - |
| (R424) No. 2 | - | - | - |
| (R424) No. 3 ββ Chassis ground | Motor (CLOSE) | When auto-closing is in operation | Pulse |
| (R424) No. 4 ββ Chassis ground | Motor (OPEN) | When auto-open is in operation | Pulse |
| (R424) No. 5 | Buzzer (-) | - | - |
| (R424) No. 6 ββ (R424) No. 5 | Buzzer (+) | When buzzer sounds | Pulse |
| (R424) No. 7 | - | - | - |
| (R424) No. 8 ββ Chassis ground | HALL RETURN | - | - |
| (R424) No. 9 ββ (R424) No. 8 | HALL2 | - | - |
| (R424) No. 10 ββ (R424) No. 8 | HALL1 | - | - |
| (R424) No. 11 ββ Chassis ground | HALL FEED | - | - |
| (R424) No. 12 | - | - | - |
| (R424) No. 13 | - | - | - |
| (R424) No. 14 | - | - | - |
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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