Nissan Sentra Service Manual: System description

Component parts

Component parts location

Instrument lower finisher

Eco mode switch

• The eco mode switch is installed to the instrument lower finisher.
• When the ECO mode indicator lamp on the combination meter is OFF and the ECO mode switch is pressed, the ECO mode is active and the ECO mode indicator lamp is ON.
• When the ECO mode indicator lamp on the combination meter is ON and the ECO mode switch is pressed, the ECO mode is cancelled and the ECO mode indicator lamp is OFF.

Eco mode indicator lamp

Design/purpose

The ECO mode indicator lamp inform the driver that the vehicle is in ECO mode.

Signal path

• Ecm receives eco mode switch signal (on/off) from combination meter via can communication
• ECM transmits ECO mode indicator signal to combination meter via CAN communication. Based on the signal, combination meter illuminates ECO mode indicator lamp.

Lighting condition

When all of the following conditions are satisfied.

• Ignition switch: ON
• The eco mode switch is pressed when the eco mode indicator lamp is off

Shutoff condition

When any of the condition listed below is satisfied.

• Ignition switch: Other than ON
• The ECO mode switch is pressed when the ECO mode indicator lamp is ON.
• The sport mode switch is pressed when the eco mode indicator lamp is on.

System

Eco mode control

Eco mode control : system description

System diagram

System description

• Ecm transmits eco mode indicator signal to combination meter via can communication. Combination meter illuminates eco mode indicator lamp according to the signal.
• For ecm control details, refer to ec-52, "eco mode control : system description".

Fail-safe

If ecm detects a malfunction during eco mode, the eco mode indicator lamp turns off and the control switches to the normal mode control.