engine coolant NISSAN ALMERA N16 2003 Electronic Repair Manual

WATER TEMPERATURE GAUGE (QG AND YD ENGINE MODELS WITH COMMON RAIL)NJEL0442S09The water temperature gauge indicates the engine coolant temperature.
ECM provides a engine coolant temperature signal to combination meter forwater temperature gauge with
CAN communication line.
WATER TEMPERATURE GAUGE (YD ENGINE MODELS WITHOUT COMMON RAIL)NJEL0442S04The 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 thermaltransmitter decreases. A variable
ground is supplied to terminal 35 of the combination meter for the water temperature gauge. The needle on
the gauge moves from “C” to “H”.
TACHOMETER (QG AND YD ENGINE MODELS WITH COMMON RAIL)NJEL0442S10The tachometer indicates engine speed in revolution per minutes (rpm). ECM provides an engine speed sig-
nal to combination meter for tachometer with CAN communication line.
TACHOMETER (YD ENGINE MODELS WITHOUT COMMON RAIL)NJEL0442S05The 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) ofthe ECM
to combination meter terminal 53 for the tachometer.
FUEL GAUGENJEL0442S06The 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 F118 (QG engine models), M28 and M67
through terminals 33 and 32 of combination meter,
through terminal 1 of the fuel level sensor unit and
through terminal 4 of the fuel level sensor unit
to combination meter terminal 34 for the fuel gauge.
SPEEDOMETER (MODELS WITH ABS)NJEL0442S11The combination meter receives a signal from the ABS actuator and electricunit. The speedometer converts
the signal into the vehicle speed displayed.
SPEEDOMETER (MODELS WITHOUT ABS)NJEL0442S07The combination meter provides a voltage signal to the vehicle speed sensor for the speedometer.
The voltage is supplied
from combination meter terminal 13 for the speedometer
to terminal 1 of the vehicle speed sensor.
Ground is supplied
from body grounds F118 (QG engine models), M28 and M67
through terminals 32 and 14 of combination meter
to teminal 2 of the vehicle speed sensor.
The speedometer converts the voltage into the vehicle speed displayed.
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METERS AND GAUGES
System Description (Cont’d)
EL-111

Warning indicatorsWarning lamps in
instrument panelWarning detection and cancel conditions Cases of malfunction
ENGINE ENGINEDetection conditionWarning lamp ON signal is
detected while engine is running.
ECM malfunction
Cancel conditionWarning lamp OFF signal is
detected.
ENGINE OIL PRES-
SUREEngine oil
pressureDetection conditionWarning lamp ON signal is
detected for at least approx. 5
seconds while engine is running.Engine oil pressure
decreases.
Cancel conditionWarning lamp OFF signal is
detected.
AIR BAG Air bagDetection conditionWarning lamp ON signal is
detected for at least approx. 10
seconds after ignition switch is
turned ON.SRS air bag system mal-
function
Cancel conditionWarning lamp OFF signal is
detected.
LOW BRAKE FLUID BrakeDetection conditionWarning lamp ON signal (fluid
level) is detected.
Low brake fluid level
Cancel conditionWarning lamp OFF signal is
detected.
OVERHEATING –Detection conditionEngine coolant temperature as
being approx. 119°C (246°F) min.
Engine cooling system
malfunction
Cancel conditionEngine coolant temperature as
being approx. 105°C (221°F)
max.
CHARGE ChargeDetection conditionWarning lamp ON signal is
detected while engine is running.
Charging system malfunctionCharging system mal-
function
Cancel conditionWarning lamp OFF signal is
detected.
LOW WASHER FLUID –Detection conditionWasher liquid level falls below
approx. 0.8(1-3/8 Imp pt)
Low washer liquid level
Cancel condition Except above condition.
LOW FUEL Fuel levelDetection conditionAfter warning lamp ON signal is
detected, vehicle is driven for
over specified distance. [Fuel
level: Approx. 9.6(8-1/2 Imp
pt)]Low fuel level
Cancel conditionWarning lamp OFF signal is
detected.
PARKING BRAKE BrakeDetection conditionParking brake ON signal is
detected while vehicle is running
[approx. 5 km/h (3 MPH) or
faster].Parking brake remains
engaged.
Cancel conditionVehicle is stopped, or parking
brake OFF signal is detected.
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LCD DISPLAY
System Description (Cont’d)
EL-241

TYPE 1=NJEL0536S01System DiagramNJEL0536S0101
SEL825Y
Input/Output Signal ChartNJEL0536S0102T: Transmit R: Receive
Signals ECM TCMSmart entrance
control unitCombination meter
Engine speed signal T R
Brake switch signal R T
Rear window defogger signal R T
Heater fan switch signal R T
Air conditioner switch signal R T
MI signal T R
Current gear position signal T R
Engine coolant temperature signal T R
Fuel consumption signal T R
Vehicle speed signal R T
Seat belt reminder signalRT
Headlamp switch signalTR
Flashing indicator signalTR
Engine cooling fan speed signal T R
Child lock indicator signalTR
Door switches state signal T R
A/C compressor signal T R
Accelerator pedal position signal T R
Output shaft revolution signal R T
OD OFF switch signal R T
OD OFF indicator signal T R
A/T self-diagnosis signal R T
CAN COMMUNICATION
CAN Communication Unit (Cont’d)
EL-510

TYPE 2=NJEL0536S02System DiagramNJEL0536S0201
SEL826Y
Input/Output Signal ChartNJEL0536S0202T: Transmit R: Receive
Signals ECMSmart entrance control
unitCombination meter
Engine speed signal T R
Rear window defogger signal R T
Heater fan switch signal R T
Air conditioner switch signal R T
MI signal T R
Engine coolant temperature signal T R
Fuel consumption signal T R
Vehicle speed signal R T
Seat belt reminder signal R T
Headlamp switch signal T R
Flashing indicator signal T R
Engine cooling fan speed signal T R
Child lock indicator signal T R
Door switches state signal T R
A/C compressor signal T R
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CAN COMMUNICATION
CAN Communication Unit (Cont’d)
EL-511

NJEL0311
Use the chart below to find out what each wiring
diagram code stands for.
Refer to the wiring diagram code in the alphabetical
index to find the location (page number) of each
wiring diagram.
Code Section Wiring Diagram Name
ISTSIG AT A/T 1ST Signal
2NDSIG AT A/T 2ND Signal
3RDSIG AT A/T 3RD Signal
4THSIG AT A/T 4TH Signal
A/C, M HA Manual Air Conditioner
A/CCUT EC Air Conditioner Cut Control
AAC/V EC IACV-AAC Valve
AACVLV EC IACV-AAC Valve
ABS BR Anti-lock Brake System
APS EC Accelerator Position Sensor
AT/C EC A/T Control
ATCONT EC A/T Control
ATDIAG EC A/T Diagnosis Communication Line
AUDIO EL Audio
BA/FTS AT A/T Fluid Temperature Sensor and
TCM Power Supply
BACK/L EL Back-up Lamp
BRK/SW EC Brake Pedal Position Switch
CHARGE SC Charging System
CHIME EL Warning Chime
CIGAR EL Cigarette Lighter
CKPS EC Crankshaft Position Sensor (POS)
CKPS EC Crankshaft Position Sensor (TDC)
CLOCK EL Clock
COOL/F EC Cooling Fan Control
D/LOCK EL Power Door Lock
DEF EL Rear Window Defogger
DTRL EL Headlamp — With Daytime Light
System
ECMRLY EC ECM Relay
ECTS EC Engine Coolant Temperature Sensor
EGR/TS EC EGR Temperature Sensor
EGRC1 EC EGR Function
EGVC/V EC EGR Volume Control Valve
ENGSS AT Engine Speed Signal
Code Section Wiring Diagram Name
F/FOG EL Front Fog Lamp
F/PUMP EC Fuel Pump
FRO2 EC Front Heated Oxygen Sensor (Non
E-OBD)
FRO2/H EC Front Heated Oxygen Sensor Heater
(Non E-OBD)
FTS AT A/T Fluid Temperature Sensor
FUEL EC Fuel Injection System Function
GLOW EC Glow Control System
H/AIM EL Headlamp Aiming Control System
H/LAMP EL Headlamp
H/SEAT EL Heated Seat
HEATER HA Heater System
HLC EL Headlamp Washer
HORN EL Horn
IATS EC Intake Air Temperature Sensor
IATSEN EC Intake Air Temperature Sensor
IGN/SG EC Ignition Signal
ILL EL Illumination
INJECT EC Injector
INJPMP EC Injection Pump
INT/L EL Spot, Vanity Mirror, Personal and
Trunk Room Lamps
IVC EC Intake Valve Timing Control Solenoid
Valve
IVC/V EC Intake Valve Timing Control Solenoid
Valve
KS EC Knock Sensor
LOAD EC Load Signal
LPSV AT Line Pressure Solenoid Valve
MAFS EC Mass Air Flow Sensor
MAIN AT Main Power Supply and Ground Cir-
cuit
MAIN EC Main Power Supply and Ground Cir-
cuit
METER EL Speedometer, Tachometer, Temp.
and Fuel Gauges
MIL/DL EC MIL and Data Link Connectors
MIRROR EL Door Mirror
MULTI EL Multi-remote Control System
NATS EL Nissan Anti-Theft System
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WIRING DIAGRAM CODES (CELL CODES)
EL-599

Heater & Cooling Unit (Heater Core)
REMOVALNJHA0193
RHA807H
1. Drain the cooling system. Refer to LC-17 (QG), LC-43 (YD),
“Changing Engine Coolant”.
2. Discharge the A/C system. Refer to HA-77.
3. Disconnect the two heater hoses from inside the engine com-
partment.
4. Remove the blower unit. Refer to HA-89.
5. Remove the steering member assembly. Refer to BT-25, “Instru-
ment Panel Assembly”.
6. Remove the heater unit.
7. Separate the heater & cooling unit case, and remove the
heater core.
INSTALLATIONNJHA0194Install in the reverse order of removal.
When filling radiator with coolant, refer to LC-18 (QG), LC-43
(YD), “Refilling Engine Coolant”.
Recharge the A/C system. Refer to HA-77.
RJIA0185E
A/C Evaporator
REMOVALNJHA02041. Use refrigerant collecting equipment (for HFC-134a) to dis-
charge refrigerant.
2. Disconnect the low-pressure flexible hose and the high-pres-
sure pipe from the evaporator.
CAUTION:
Cap or wrap the joint of the low-pressure flexible hose and the
high-pressure pipe with a suitable tool such as a vinyl tape to
avoid the entry of air.
3. Hold expansion valve and move it slightly upward. Push
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SERVICE PROCEDUREMANUAL
Heater & Cooling Unit (Heater Core)
HA-87

COOL/F - Wiring diagram
(QG engine)................................EC-328, EC-601
COOL/F - Wiring diagram (YD engine) ........EC-130
Coolant mixture ratio......................................MA-21
Cooling circuit (engine).............................LC-12, 36
Cooling fan control (YD engine)...................EC-130
Cooling fan control system .......................LC-17, 42
Cooling fan motor (QG engine) .....EC-335, EC-608
Coupling sleeve (M/T)........................MT-31, 55, 93
Crankcase emission control system -
See positive crankcase ventilation
(YD engine).................................................EC-19
Crankcase ventilation system - See
Positive crankcase ventilation
(QG engine)................................EC-403, EC-722
Crankcase ventilation system - See
Positive crankcase ventilation
(YD engine).................................................EC-19
Crankshaft (QG engine).................................EM-71
Crankshaft (YD engine) .................................EM-75
Crankshaft position sensor (POS)
(QG engine)................................EC-235, EC-556
Crankshaft position sensor (TDC)
(YD engine).................................................EC-99
Cylinder block (QG engine) ...........................EM-70
Cylinder block (YD engine) ............................EM-66
Cylinder block boring (QG engine) ................EM-88
Cylinder block boring(QR) .............................EM-89
Cylinder head (QG engine)............................EM-57
Cylinder head (YD engine) ............................EM-45
Cylinder head bolt tightening
(QG engine)................................................EM-59
D
Data link connector
(QG engine) ...EC-398, EC-399, EC-717, EC-718
Data link connector for Consult
(QG engine)..................................EC-90, EC-468
Data link connector for Consult
(YD engine).................................................EC-39
Daytime light system.......................................EL-46
DEF - Wiring diagram ...................................EL-176
Diagnosis sensor unit .....................................RS-26
Diagnostic trouble code (DTC) for OBD
system (QG engine) ......................EC-10, EC-39,
EC-407, EC-430
Diagnostic trouble code (DTC) for OBD
system (YD engine) ................................EC-4, 34
Diagnostic trouble code (DTC) inspec-
tion priority chart (QG engine) .....EC-62, EC-441
Differential gear (FF M/T) ....MT-31, 43, 55, 93, 107
Dimensions <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[.GI-44
Dome light - See Interior lamp .......................EL-80
Door glass <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011[.BT-17
Door lock <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[..BT-21
Door mirror <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[.BT-72
Door trim <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011[..BT-39
Door, front <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011[..BT-16
Door, rear <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011[..BT-16Drive belt (QG engine) ...................................EM-11
Drive shaft (front)............................................AX-10
Dropping resistor (A/T) ....................AT-171, AT-395
DTC work support (QG engine) .....................EC-97
Dual pressure switch (manual A/C) ...............HA-12
Dual pressure switch ......ATC-15, ATC-86, ATC-144
Duct and grilles...........................................ATC-131
E
ECCS-D control module
(YD engine) ........EC-66, 116, 175, 177, 181, 183
ECM input/output signal
(QG engine)..................................EC-81, EC-460
ECM input/output signal (YD engine) ............EC-66
ECM power supply
(QG engine) ...EC-111, EC-269, EC-488, EC-573
ECM/PW - Wiring diagram
(QG engine)................................EC-270, EC-574
ECTS - Wiring diagram
(QG engine)................................EC-147, EC-505
ECTS - Wiring diagram (YD engine)..............EC-84
EGR volume control valve (YD engine) .......EC-197
EGRC1 - Wiring diagram (YD engine) .........EC-199
Electric sun roof ............................................EL-249
Electric throttle control actuator
(QG engine) ................EC-277, EC-279, EC-292,
EC-577, EC-580, EC-593
Electrical diagnoses.........................................GI-22
Electrical load signal circuit
(QG engine)................................EC-393, EC-712
Electrical unit ................................................Foldout
Electrical units location .................................EL-543
Electronic fuel injection pump
(YD engine) ...............EC-25, 118, 124, 145, 151,
157, 163, 169, 185
Electronic ignition (EI) system
(QG engine)..................................EC-25, EC-420
Engine compartment .......................................BT-75
Engine control circuit diagram
(QG engine)..................................EC-79, EC-458
Engine control circuit diagram
(YD engine).................................................EC-14
Engine control component parts loca-
tion (QG engine)...........................EC-75, EC-454
Engine control component parts loca-
tion (YD engine) ..........................................EC-11
Engine control module (ECM)
(QG engine)................................EC-266, EC-570
Engine control module (ECM)
(YD engine) ........EC-66, 116, 175, 177, 181, 183
Engine control system diagram and
chart (QG engine) ........................EC-21, EC-416
Engine control system diagram and
chart (YD engine) .......................................EC-15
Engine coolant temperature sensor
(ECTS) (QG engine) ..................EC-145, EC-503
Engine coolant temperature sensor
(ECTS) (YD engine) ...................................EC-84
ALPHABETICAL INDEX
IDX-4