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.
Stop/Start Operation Condition
When all of the following conditions is satisfied, ECM stops the engine.
| Item | Condition | |
|---|---|---|
| Vehicle | Stop/start readiness condition | Ready |
| Vehicle speed | 0 km/h (0 MPH) | |
| Steering wheel | Not steer (steering force does not occur) | |
| Accelerator pedal | Released | |
| Brake pedal | Depressed* | |
| Brake fluid pressure | 0.7 MPa (7 bar, 7.14 kg/cm2 , 101 psi) or more | |
| Brake booster vacuum | Presence of sufficient negative pressure to a brake force. | |
| Vehicle angularity | Approx. 14% or less | |
| Engine | Engine speed | 1200 RPM or less |
| Transmission | Selector lever position | Except R range |
*: EMCM calculates a brake pedal status based on the brake pedal position Switch signal and the brake fluid pressure sensor signal. And then, EMCM transmits a brake pedal position signal to ECM via CAN communication.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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