Electric NISSAN ALMERA 2001 Service Manual

Electrical Components Inspection/Sedan=NJEL0047METER/GAUGE RESISTANCE CHECKNJEL0047S04Check resistance between installation screws of meter/gauge after
removing meter/gauge.
Screws
Resistance
W
Tacho/Speedometer Fuel/Temp. gauge
A - C A - C Approx. 190 - Approx. 260
B - D B - C Approx. 230 - Approx. 310
SEL933W
SEL962W
FUEL LEVEL SENSOR UNIT CHECKNJEL0047S01+For removal, refer to FE-6, FE-23, ªFUEL SYSTEMº.
Gasoline Engine ModelsNJEL0047S0103Check the resistance between terminals 4 and 1.
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (þ)
41*1 Full 38 (1.50) Approx.5-6
*2 1/2 89 (3.50) 32 - 33
*3 Empty 162 (6.38) 80 - 83
*1 and *3: When float rod is in contact with stopper.
Diesel EngineNJEL0047S0104Check the resistance between terminals 1 and 3.
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (þ)
13*1 Full 38 (1.50) Approx.5-6
*2 1/2 90 (3.50) 32 - 33
*3 Empty 162 (6.38) 80 - 83
*1 and *3: When float rod is in contact with stopper.
METERS AND GAUGES
Electrical Components Inspection/Sedan
EL-162

MEL424F
THERMAL TRANSMITTER CHECKNJEL0047S02Check the resistance between the terminals of thermal transmitter
and body ground.
Water temperature Resistance
60ÉC (140ÉF) Approx. 170 - 210W
100ÉC (212ÉF) Approx. 47 - 53W
CEL219AA
VEHICLE SPEED SENSOR SIGNAL CHECKNJEL0047S031. Remove vehicle speed sensor from transmission.
2. Turn vehicle speed sensor pinion quickly and measure voltage
across 1 and 2.
METERS AND GAUGES
Electrical Components Inspection/Sedan (Cont'd)
EL-163

Component Parts and Harness Connector
Location/Hatchback
=NJEL0441For details, refer to ªELECTRICAL UNITS LOCATIONº (EL-517)
and ªHARNESS LAYOUTº (EL-522).
System Description/HatchbackNJEL0442UNIFIED CONTROL METERNJEL0442S01+Speedometer, odo/trip meter, tachometer, fuel gauge and water temperature gauge are controlled totally
by control unit built-in combination meter.
+Digital meter is adopted for odo/trip meter.*
*The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter
is erased when the battery cable is disconnected.
+Odo/trip meter segment can be checked in diagnosis mode.
+Meter/gauge can be checked in diagnosis mode.
HOW TO CHANGE THE DISPLAY FOR ODO/TRIP METERNJEL0442S02
SEL394X
NOTE:
Turn ignition switch to the ªONº position to operate odo/trip meter.
POWER SUPPLY AND GROUND CIRCUITNJEL0442S03Power is supplied at all times
+through 10A fuse [No. 12, located in the fuse block (J/B)]
+to combination meter terminal 28 (*1) or 23 (*2)
With the ignition switch in the ON or START position, power is supplied
+through 10A fuse [No. 30, located in the fuse block (J/B)]
+to combination meter terminal 40 (*1) or 1 (*2)
Ground is supplied
+through body grounds M28 and M67
+to combination meter terminal 27 (*1) or 10 (*2)
METERS AND GAUGES
Component Parts and Harness Connector Location/Hatchback
EL-164

SEL498X
Electrical Components Inspection/Hatchback=NJEL0449FUEL LEVEL SENSOR UNIT CHECKNJEL0449S02+For removal, refer to FE-6, FE-23, ªFUEL SYSTEMº.
Check the resistance between terminals 4 and 1.
Ohmmeter
Float position mm (in)Resistance
valueW
(+) (þ)
41*1 Full 142.5 (5.61) Approx.4-6
*2 1/2 88.7 (3.492) 32 - 33
*3 Empty 11.1 (0.437) 80 - 83
*1 and *3: When float rod is in contact with stopper.
MEL424F
THERMAL TRANSMITTER CHECKNJEL0449S03Check the resistance between the terminals of thermal transmitter
and body ground.
Water temperature Resistance
65ÉC (149ÉF) Approx. 1,179 - 1,417W
91ÉC (196ÉF) Approx. 474 - 568W
CEL219AA
VEHICLE SPEED SENSOR SIGNAL CHECKNJEL0449S041. Remove vehicle speed sensor from transmission.
2. Turn vehicle speed sensor pinion quickly and measure voltage
across 1 and 2.
METERS AND GAUGES
Electrical Components Inspection/Hatchback
EL-183

SEL977W
Electrical Components InspectionNJEL0051FUEL WARNING LAMP OPERATION CHECKNJEL0051S011. Turn ignition switch ªOFFº.
2. Disconnect fuel level sensor unit harness connector B29
(Sedan with Gasoline engine or Hatchback) or B30 (Sedan
with Diesel engine).
3. Connect a resistor (80W) between fuel level sensor unit har-
ness connector terminals 4 and 1 (Sedan with Gasoline engine
or Hatchback) or 1 and 3 (Sedan with Diesel engine).
4. Turn ignition switch ªONº.
The fuel warning lamp should come on.
NOTE:
For QG Engine Only
ECM might store the DTC P0180 during this inspection. If the DTC
is stored in ECM memory, erase the DTC after reconnecting the
fuel level sensor unit and fuel pump harness connector. Refer to
EC-70, ªHOW TO ERASE EMISSION-RELATED DIAGNOSTIC
INFORMATIONº, ªEmission-related Diagnostic Informationº, ªON
BOARD DIAGNOSTIC SYSTEM DESCRIPTIONº.
MEL425F
OIL PRESSURE SWITCH CHECKNJEL0051S02
Oil pressure
kPa (bar, kg/cm2, psi)Continuity
Engine runningMore than 10 - 20
(0.10 - 0.20, 0.1 - 0.2,
1-3)No
Engine not runningLess than 10 - 20
(0.10 - 0.20, 0.1 - 0.2,
1-3)Ye s
Check the continuity between the terminals of oil pressure switch
and body ground.
SEL901F
DIODE CHECKNJEL0051S03+Check continuity using an ohmmeter.
+Diode is functioning properly if test results are as shown in the
figure at left.
+Check diodes at the combination meter harness connector
instead of on the combination meter assembly. Refer to
EL-185, ªWARNING LAMPº wiring diagrams.
NOTE:
Specification may vary depending on the type of tester. Before
performing this inspection, be sure to refer to the instruction
manual for the tester to be used.
WARNING LAMPS
Electrical Components Inspection
EL-194

SEL970W
Electrical Components Inspection=NJEL0076REAR WINDOW DEFOGGER RELAYNJEL0076S01Check continuity between terminals 3 and 5, 6 and 7.
Condition Continuity
12V direct current supply between ter-
minals 1 and 2Ye s
No current supply No
SEL969WA
REAR WINDOW DEFOGGER SWITCHNJEL0076S02Check continuity between terminals when rear window defogger
switch is pushed and released.
NEL797
Terminals Condition Continuity
3-5Rear window defogger
switch is pushed.Ye s
Rear window defogger
switch is released.No
REAR WINDOW DEFOGGER
Electrical Components Inspection
EL-255

Description/Sedan=NJEL0403OUTLINENJEL0403S01The time control unit totally controls the following body electrical system operations.
+Warning chime
+Rear defogger
+Power door lock
+Interior lamp
INPUT/OUTPUTNJEL0403S02
System Input Output
Power door lockDoor lock and unlock switch
Door switches
Door unlock sensor
Door key cylinder switchesDoor lock actuator
Warning chimeKey switch (Insert)
Ignition switch (ON)
Lighting switch (1st)
Door switch driver side
Door unlock sensorWarning chime (located in time control unit)
Rear window defoggerIgnition switch (ON)
Rear window defogger switchRear window defogger relay
Interior lampDoor switches
Front door unlock sensor
Ignition switch (ON)
Key switch (Insert)Interior lamp
TIME CONTROL UNIT
Description/Sedan
EL-414

Component Parts and Harness Connetor
Location
NJEL0406For details, refer to ªELECTRICAL UNIT LOCATIONº (EL-517) and
ªHARNESS LAYOUTº (EL-522).
NATS (NISSAN ANTI-THEFT SYSTEM)
Component Parts and Harness Connetor Location
EL-422

PrecautionsNJEL0514WARNING:
Do not attempt to disassemble the monitor. Parts of the monitor have high voltages that can result in
severe and dangerous electric shock.
CAUTION:
+Do not reverse battery connections.
+Do not attach unauthorized parts.
+Protect the unit from severe impact.
NOTE:
Before beginning repair, determine whether or not the unit is defective. Refer to ªThis Condition Is Not
Abnormalº (EL-507).
NAVIGATION SYSTEM
Precautions
EL-450

for example, when the vehicle is in a tunnel, in a parking lot
inside building, under an elevated superhighway or near strong
power lines, the location may not be detected. Turbulent/
electric weather conditions may also affect positioning perfor-
mance. If something is placed on the antenna, the radio wave
from GPS satellites may not be received.
SEL507X
COMPONENT DESCRIPTIONNJEL0516S02NAVI Control UnitNJEL0516S0201+The gyro (angular speed sensor) and the CD-ROM drive are
built-in units that control the navigation functions.
+Signals are received from the gyro, the vehicle speed sensor,
and the GPS antenna. Vehicle location is determined by com-
bining this data with the data contained in the CD-ROM map.
Locational information is shown on liquid crystal display panel.
SEL506X
CD-ROM DriverNJEL0516S0202Maps, traffic control regulations, and other pertinent information
can be easily red from the CD-ROM disc.
Map CD-ROMNJEL0516S0203+The map CD-ROM has maps, traffic control regulations, and
other pertinent information.
+To improve CD-ROM map matching and route determination
functions, the CD-ROM uses an exclusive Nissan format.
Therefore, the use of a CD-ROM provided by other manufac-
turers cannot be used.
SEL690V
Gyro (Angular Speed Sensor)NJEL0516S0204+The oscillator gyro sensor is used to detect changes in vehicle
steering angle.
+The oscillator gyro periodically senses oscillatory variation at
the oscillation terminals. This variation is caused by changes
in the vehicle angular velocity. Voltage variations are sensed
by ceramic voltage sensors at the left and right sides of the
terminals. Vehicle angular velocity corresponds directly with
these changes in voltage.
+The gyro is built into the navigation (NAVI) control unit.
NAVIGATION SYSTEM
System Description (Cont'd)
EL-454