Nissan Sentra Service Manual: Symptom diagnosis
The eco mode indicator lamp does not turn on
Description
The ECO mode indicator lamp does not turn ON when the ECO mode switch is operated.
Diagnosis Procedure
1.Perform combination meter on board diagnosis
Perform combination meter on board diagnosis. Refer to MWI-16, "Description".
Is the check result normal? YES >> GO TO 2.
NO >> Replace combination meter. Refer to MWI-77, "Removal and Installation".
2.Check dtc (tcm)
With consultv
- Start the engine.
- Check “self diagnostic results” in “transmission”.
Is any DTC detected? YES >> Check DTC detected item. Refer to TM-126, "DTC Index".
NO >> GO TO 3.
3.Check dtc (ecm)
With consult
Check “self diagnostic results” in “engine”.
Is any dtc detected? Yes >> check dtc detected item. Refer to ec-94, "dtc index".
No >> go to 4.
4.Check dtc (combination meter)
With consult
Check “self diagnostic results” in “meter/m&a”.
Is any dtc detected? Yes >> check dtc detected item. Refer to mwi-26, "dtc index".
No >> go to 5.
5.Check combination meter input/output signal
With consult
- Select “data monitor” in “meter/m&a”.
- Select “eco mode ind”.
- Check that “ECO MODE IND” turns ON/OFF when ECO mode switch is operated. Refer to MWI-20, "Reference Value".
Is any DTC detected? YES >> Replace combination meter. Refer to MWI-77, "Removal and Installation".
NO >> GO TO 6.
6.Check eco mode switch circuit
Check eco mode switch circuit. Refer to dms-34, "diagnosis procedure".
Is any dtc detected? Yes >> inspection end
No >> repair or replace malfunctioning parts.
Dtc/circuit diagnosis
Eco mode switch
Component function check
1. Check eco mode switch operation
Turn ignition switch ON.
Check ECO mode indicator lamp turns ON/OFF on combination meter when
turn ECO mode swit ...
Removal and installation
Eco mode switch
Removal and installation
Removal
Remove instrument lower panel LH. Refer to IP-21, "Removal and
Installation".
Remove ECO mode switch.
Installation
Installatio ...
Other materials:
Preparation
Special Service Tools
The actual shape of the tools may differ from those illustrated here.
Commercial Service Tools
Clip list
Descriptions for Clips
Replace any clips which are damaged during removal or installation.
...
Multiport fuel injection system
MULTIPORT FUEL INJECTION SYSTEM : System
Description
SYSTEM DIAGRAM
*1: ECM determines the start signal status by the signals of engine speed and
battery voltage.
*2: M/T models
*3: CVT models
*4: This sensor is not used to control the engine system under normal
conditions.
SYSTEM DES ...
EPS branch line circuit
Diagnosis procedure
1.Check connector
Turn the ignition switch off.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the EPS control unit for damage,
bend and loose connection (unit
side and connector side).
Is the inspection result norm ...
