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.
2020 Nissan-Datsun Sentra SFACTORY OEM SERVICE PROCEDURE
ECM Control
- ECM receives the ECO mode signal from BCM via CAN communication and improves the fuel economy by controlling the throttle movement to less than usual. (reducing energy consumption by decreasing needless acceleration and deceleration), so that operation of fuel efficiency driving is assisted.
- ECM transmits ECO mode indicator signal to combination meter via CAN communication. Combination meter illuminates ECO mode indicator lamp according to the signal.
- For Air Conditioning Control details.
NOTE:
When the ignition switch is placed OFF while the ECO mode indicator lamps stays ON, the ECO mode indicator lamp automatically turns ON at the next ignition switch ON.
Factory Service Tools
Use the Manual With the Right Hardware
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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.