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:
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 ...
P0453 EVAP Control system pressure sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0453
EVAP SYS PRES SEN
(Evaporative emission system
pressure sensor/switch high)
An excessively high voltage from the
sensor is ...
Power supply and ground circuit
Av control unit
Av control unit : diagnosis procedure
Regarding wiring diagram information, refer to av-331, "wiring diagram".
1.Check fuse
Check that the following fuses are not blown.
Are the fuses blown?
Yes >> replace the blown fuse after repairing the affected circuit. ...
