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.
Check Rear Gate Opener Button Circuit
- CHECK DATA MONITOR
.
Display the [R Gate Release SW input] data using Subaru Select Monitor. Ref. to BODY CONTROL (DIAGNOSTICS)>DATA MONITOR .
Does the display change to [OFF] ↔ [ON], when the rear gate opener button is operated?
Yes: Rear gate opener button is normal.
No: Go to 2.
- CHECK HARNESS
.
- Disconnect the connectors of body integrated unit and rear gate opener button.
- Check the harness between the body integrated unit and rear gate opener button.
Connector & terminal
Model without keyless access with push button start
(i171) No. 6 - (D47) No. 1:
Model with keyless access with push button start
(i171) No. 6 - (D77) No. 1:
Is harness normal?
Yes: Go to 3.
No: Repair or replace the harness.
- CHECK HARNESS
.
Measure the resistance between the rear gate opener button connector and chassis ground.
Connector & terminal
Model without keyless access with push button start
(D47) No. 2 - Chassis ground:
Model with keyless access with push button start
(D77) No. 2 - Chassis ground:
Is the resistance less than 10 Ω?
Yes: Go to 4.
No: Repair or replace the harness.
- CHECK REAR GATE OPENER BUTTON
.
Measure the resistance between terminals both when the rear gate opener button is pressed and when not pressed.
Terminals
No. 1 - No. 2:
Is the resistance less than 10 Ω when the switch is pressed and 1 MΩ or more when not pressed?
Yes: Replace the body integrated unit. Ref. to SECURITY AND LOCKS>BODY INTEGRATED UNIT .
No: Replace the rear gate opener button. Ref. to SECURITY AND LOCKS>REAR GATE OPENER BUTTON .
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.