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.
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HOMESERVICE MANUALSSUBARU2022IMPREZA BASE, 4D SEDAN, AUTOMATIC CVT TRANSREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISAUTO START STOP (DIAGNOSTICS)INSPECTION MODEPROCEDUREDIAGNOSTIC PROCEDURE
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT Trans
Diagnostic Procedure
2022 Subaru Impreza Base, 4D Sedan, Automatic CVT TransSECTION Diagnostic Procedure
WARNING:
When performing inspection mode on a public road, pay sufficient attention to the traffic condition and give the highest priority to safe driving.
- Turn the ignition switch to ON and wait for at least 10 seconds without starting the engine.
- Start the engine, and run the engine at idle for 60 seconds or more while the vehicle is at a standstill.
- Accelerate to 40 km/h (24.9 MPH) or more, and depress the brake pedal to stop the vehicle with the gear kept in D range.
- Check that the Auto Start Stop functions for at least 10 seconds.
- Release the brake pedal to restart.
- Turn the ignition switch to OFF, and wait for 10 seconds or more.
- If the Auto Start Stop does not function for 10 seconds or more in step 4), repeat steps 1 to 5 with the number of driving cycles described in the detection condition for each DTC. Ref. to AUTO START STOP (DIAGNOSTICS)>INSPECTION MODE .
- Read the diagnostic trouble code (DTC) and check the DTC. Ref. to AUTO START STOP (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .NOTE:
- If the DTC is displayed on the screen, the trouble is still present. Perform the diagnosis using "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". After solving the DTC, repeat from step 1 .
- When the Auto Start Stop functions for at least 10 seconds, the function recovers properly.
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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.