2001 NISSAN ALMERA Ignition system

POWER SUPPLY AND GROUND CIRCUITNJEL0042S08Power is supplied at all times
+through 10A fuse [No. 12, located in the fuse block (J/B)]
+to combination meter terminal 18 (with tachometer) or 21 (without tachometer).
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 17 (with tachometer) or 22 (without tachometer).
Ground is supplied
+through body grounds M28 and M67
+to combination meter terminal 24 (with tachometer) or 23 (without tachometer).
WATER TEMPERATURE GAUGENJEL0042S01The water temperature gauge indicates the engine coolant temperature. The reading on the gauge is based
on the resistance of the thermal transmitter.
As the temperature of the coolant increases, the resistance of the thermal transmitter decreases. A variable
ground is supplied to terminal 19 (with tachometer) or 34 (without tachometer) of the combination meter for
the water temperature gauge. The needle on the gauge moves from ªCº to ªHº.
TACHOMETERNJEL0042S02The tachometer indicates engine speed in revolutions per minute (rpm).
The tachometer is regulated by a signal
+from terminal 32 (Gasoline engine models) or 439 (Diesel engine models) of the ECM
+to combination meter terminal 21 for the tachometer.
FUEL GAUGENJEL0042S03The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied
+from body grounds B9, B21 and B308
+through terminal 1 (Gasoline engine models) or 3 (Diesel engine models) of the fuel level sensor unit and
+through terminal 4 (Gasoline engine models) or 1 (Diesel engine models) of the fuel level sensor unit
+to combination meter terminal 20 (with tachometer) or 35 (without tachometer) for the fuel gauge.
SPEEDOMETERNJEL0042S04The combination meter provides a voltage signal to the vehicle speed sensor for the speedometer.
The voltage is supplied
+from combination meter terminal 23 (with tachometer) or 37 (without tachometer) for the speedometer
+to terminal 1 of the vehicle speed sensor.
The speedometer converts the voltage into the vehicle speed displayed.
METERS AND GAUGES
System Description/Sedan (Cont'd)
EL-145

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

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

System Description/Sedan=NJEL0372The warning chime is controlled by the time control unit.
The warning chime is located in the time control unit.
Power is supplied at all times
+through 10A fuse [No. 12, located in the fuse block (J/B)]
+to key switch terminal 1,
+to time control unit terminal 1,
+through 10A fuse (No. 38, located in the fuse and fusible link box)
+to lighting switch terminal 11, and
+to daytime light unit terminal 1 (with daytime light system)
With the ignition switch in the ON or START position, power is supplied
+through 10A fuse [No. 10, located in the fuse block (J/B)]
+to time control unit terminal 17.
Ground is supplied to time control unit terminal 16 through body grounds M28 and M67.
When a signal, or combination of signals, is received by the time control unit, the warning chime will sound.
IGNITION KEY WARNING CHIMENJEL0372S01With the key in the ignition switch in the OFF position, the driver's door open and driver's door locked, the
warning chime will sound. Power is supplied
+from key switch terminal 2
+to time control unit terminal 18.
Ground is supplied
+from body grounds B9, B21 and B308
+to time control unit terminal 30, and
Ground is interrupted,
+from body grounds M28, M67 and B308
+to time control unit terminal 28
LIGHT WARNING CHIMENJEL0372S02With ignition switch OFF, driver's door open, and lighting switch in 1ST or 2ND position, warning chime will
sound. Power is supplied.
+from lighting switch terminal 12 or daytime light control unit terminal 10 (with daytime light system) to time
control unit terminal 19
Ground is supplied
+from door switch driver side terminal 2
+to time control unit terminal 30.
Door switch driver side terminal 3 is grounded through body grounds B9, B21 and B308.
WARNING CHIME
System Description/Sedan
EL-198

DIAGNOSTIC PROCEDURE 4NJEL0374S05
1 CHECK IGNITION ON SIGNAL
Check voltage between time control unit terminal 17 and ground.
SEL985W
OK or NG
OK©GO TO 2.
NG©Check the following.
+10A fuse [No. 10, located in fuse block (J/B)]
+Harness for open or short between time control unit and fuse
2 CHECK DOOR SWITCH INPUT SIGNAL
Check voltage between time control unit terminal 30 and ground.
SEL986W
OK or NG
OK©System is OK.
NG©GO TO 3.
WARNING CHIME
Trouble Diagnoses/Sedan (Cont'd)
EL-204

System Description/HatchbackNJEL0453The warning chime is controlled by the time control unit.
The warning chime is located in the time control unit.
Power is supplied at all times
+through 15A fuse [No. 5, located in fuse block (J/B)]
+to time control unit terminal 9.
+through 10A fuse [No. 12, located in the fuse block (J/B)]
+to key switch terminal 1.
+through 10A fuse (No. 38, located in the fuse and fusible link box)
+to lighting switch terminal 11.
With the ignition switch in the ON or START position, power is supplied
+through 10A fuse [No. 10, located in the fuse block (J/B)]
+to time control unit terminal 1.
Ground is supplied to time control unit terminal 16 through body grounds M28 and M67.
When a signal, or combination of signals, is received by the time control unit, the warning chime will sound.
IGNITION KEY WARNING CHIMENJEL0453S01With the key in the ignition switch in the OFF position, the driver's door open and driver's door locked, the
warning chime will sound. Power is supplied
+from key switch terminal 2
+to time control unit terminal 22.
Ground is supplied
+from body grounds B9 and B21
+through front door switch (driver side) terminal 2
+to time control unit terminal 6, and
Ground is interrupted,
+from body grounds M28 and M67
+to time control unit terminal 35
LIGHT WARNING CHIMENJEL0453S02With ignition switch OFF, driver's door open, and lighting switch in 1ST or 2ND position, warning chime will
sound. Power is supplied.
+from lighting switch terminal 12
+to time control unit terminal 10
Ground is supplied
+from front door switch (driver side) terminal 2
+to time control unit terminal 6.
Front door switch (driver side) terminal 3 is grounded through body grounds B9 and B21.
WARNING CHIME
System Description/Hatchback
EL-206

DIAGNOSTIC PROCEDURE 4NJEL0455S06
1 CHECK IGNITION ON SIGNAL
Check voltage between time control unit terminal 1 or 9 and ground.
SEL447X
OK or NG
OK©GO TO 2.
NG©Check the following.
+10A fuse [No. 10, located in fuse block (J/B)]
+15A fuse [No. 5, located in the fuse block (J/B)]
+Harness for open or short between time control unit and fuse
2 CHECK DOOR SWITCH INPUT SIGNAL
Check voltage between time control unit terminal 6 and ground.
SEL430X
OK or NG
OK©System is OK.
NG©Check voltage between time control unit terminal 6 and body ground with disconnecting
front door switch (driver side).
If approx. 5V is supplied, GO TO 3.
If approx. 5V is not supplied, replace time control unit.
WARNING CHIME
Trouble Diagnoses/Hatchback (Cont'd)
EL-213

System Description/SedanNJEL0057WIPER OPERATIONNJEL0057S01The wiper switch is controlled by a lever built into the combination switch.
There are three wiper switch positions:
+LO speed
+HI speed
+INT (Intermittent)
With the ignition switch in the ON or START position, power is supplied
+through 20A fuse [No. 25, located in the fuse block (J/B)]
+to front wiper motor terminal 1.
Low and High Speed Wiper OperationNJEL0057S0101Ground is supplied to wiper and washer switch terminal 17 through body grounds E30 and E73.
When the wiper switch is placed in the LO position, ground is supplied
+through terminal 14 of the front wiper and washer switch
+to front wiper motor terminal 3.
With power and ground supplied, the wiper motor operates at low speed.
When the wiper switch is placed in the HI position, ground is supplied
+through terminal 16 of the front wiper and washer switch
+to wiper motor terminal 2.
With power and ground supplied, the wiper motor operates at high speed.
Auto Stop OperationNJEL0057S0102With wiper switch turned OFF, wiper motor will continue to operate until wiper arms reach windshield base.
When wiper arms are not located at base of windshield with wiper switch OFF, ground is provided
+from terminal 14 of the front wiper and washer switch
+to front wiper motor terminal 3, in order to continue wiper motor operation at low speed.
Ground is also supplied
+through terminal 13 of the front wiper and washer switch
+to front wiper motor terminal 6
+through terminal 4 of the front wiper motor, and
+through body grounds E30 and E73.
When wiper arms reach base of windshield, front wiper motor terminals 1 and 6 are connected instead of ter-
minals 4 and 6. Wiper motor will then stop wiper arms at the STOP position.
Intermittent OperationNJEL0057S0103The front wiper motor operates the wiper arms one time at low speed at a set interval of approximately 1 to
13 seconds. This feature is controlled by the wiper amplifier (INT SW) combined with front wiper and washer
switch.
When the wiper switch is placed in the INT position, ground is supplied to wiper amplifier.
The desired interval time is input to wiper amplifier (INT VR) from wiper volume switch combined with front
wiper and washer switch.
Then intermittent ground is supplied
+through wiper amplifier (OUTPUT) and
+through terminal 14 of front wiper and washer switch
+to front wiper motor terminal 3
The wiper motor operates at low speed at the desired interval.
WASHER OPERATIONNJEL0057S02With the ignition switch in the ON or START position, power is supplied
+through 20A fuse [No. 25, located in the fuse block (J/B)]
+to washer motor terminal 1.
When the lever is pulled to the WASH position, ground is supplied
+from body grounds E30 and E73
+through terminal 17 of the front wiper and washer switch, and
FRONT WIPER AND WASHER
System Description/Sedan
EL-215