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.
2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE
Inspection Mode G
| DTC | Item | Condition |
|---|---|---|
| P0719 | BRAKE SWITCH "B" CIRCUIT LOW | - |
| P0724 | BRAKE SWITCH "B" CIRCUIT HIGH | - |
| P0951 | AUTO SHIFT MANUAL CONTROL CIRCUIT RANGE/PERFORMANCE | - |
Diagnostic procedure:
- Check the readiness code using Subaru Select Monitor and confirm that the diagnosis is not completed.
- Start the engine.
- Operate the stop light switch or the manual mode switch.NOTE: Drive in "D" range and "R" range.
- Read the data of the stop light switch or the manual mode switch using the Subaru Select Monitor. Or measure the terminal voltage.
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:
- • 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.