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.
Precautions
Precaution for supplemental restraint system (srs) "air bag" and "seat belt
pre-tensioner"
The supplemental restraint system such as “air bag” and “seat belt pre- ...
Ecu diagnosis information
Ecm
List of ecu reference
Reference list
...
Other materials:
C1609 Vehicle speed signal
DTC Logic
Dtc detection logic
DTC
Display item
Malfunction detected condition
Possible cause
C1609
CAN VHCL SPEED
Malfunction is detected in vehicle speed signal that
is output from abs actuator and electric unit (control
unit) via can communication. ...
Eco mode control
ECO MODE CONTROL : System Description
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
ECM receives an ECO mode signal from combination meter via CAN
communication and improves the fuel
economy by controlling the throttle movement to less than usual. Therefore,
driving characteristic is controlle ...
The seat belt reminder warning
continues sounding, or does not
sound
Description
Seat belt reminder warning does not sound.
Seat belt reminder warning sounds continuously.
Diagnosis procedure
1.Check seat belt warning lamp
Turn ignition switch on.
Check the operation of the seat belt warning lamp in the combination
meter.
Is the inspection ...
