Nissan Sentra Service Manual: Fuel filler cap warning system
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the fuel filler being left uncapped and malfunction occurrences after refueling, by turning ON the fuel filler cap warning display on the combination meter.
ECM judges a refueled state, based on a fuel level signal transmitted from the combination meter.
When a very small leak is detected through the EVAP leak diagnosis performed after judging the refueled state, ECM transmits a fuel filler cap warning display signal (request for display ON) to the combination meter via CAN communication.
When receiving the signal, the combination meter turns ON the fuel filler cap warning display.
CAUTION:
Check fuel filler cap installation condition when the fuel filler cap warning display turns ON.
Reset Operation
The fuel filler cap warning lamp tunes OFF, according to any condition listed below:
- Reset operation is performed by operating the meter control switch on the combination meter. Refer to MWI- 16, "Description".
- When the reset operation is performed, the combination meter transmits a fuel filler cap warning reset signal to ECM via CAN communication. ECM transmits a fuel filler cap warning display signal (request for display OFF) to the combination meter via CAN communication. When receiving the signal, the combination meter turns OFF the fuel filler cap warning display.
- EVAP leak diagnosis result is normal.
- Fuel refilled.
- DTC erased by using CONSULT.
NOTE:
MIL turns ON if a malfunction is detected in leak diagnosis results again at the trip after the fuel filler cap warning display turns ON/OFF.
Engine protection control at low engine
oil pressure
ENGINE PROTECTION CONTROL AT LOW ENGINE OIL PRESSURE : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Engi ...
Air conditioning cut control
AIR CONDITIONING CUT CONTROL : System Description
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL CHART
Sensor
Input Signal to ECM
ECM function
Actuator
Crankshaft position sensor ( ...
Other materials:
Brake pedal position switch
Component Function Check
1.CHECK BRAKE PEDAL POSITION SWITCH FUNCTION
With CONSULT
Turn ignition switch ON.
Select “ENGINE” using CONSULT.
Select “BRAKE SW1” in “DATA MONITOR” mode.
Check “BRAKE SW1” indication under the following conditions.
...
Rocker cover
Exploded View
Oil filler cap
Rocker cover protector
Oil filler tube
O-ring
Rocker cover
Rocker cover gasket
Refer to INSTALLATION
Removal and Installation
REMOVAL
Remove intake manifold. Refer to EM-27, "Exploded View".
Remove rocker cover protector.
Re ...
System description
Component parts
Component parts location
Instrument lower finisher
Component description
Sport mode switch
The sport mode switch is installed to the instrument lower finisher.
When the sport mode indicator lamp on the combination meter
is off and the sport mode switch is pres ...
