coolant NISSAN ALMERA N15 1995 Service Manual
[x] Cancel search | Manufacturer: NISSAN, Model Year: 1995, Model line: ALMERA N15, Model: NISSAN ALMERA N15 1995Pages: 1701, PDF Size: 82.27 MB
Page 1121 of 1701
TROUBLEDIAGNOSES ~
Partial LoadAdvance (PLA)Control (Cont'd)
II
~i5
D~CONNECTORII
lOB
~i5
ECM
M
CONNECTOR
II
10B
SEF040Q
SEF949P
INSPECTION
START
CHECK OVERALL FUNCTION.
1) Start engine.
2) Check voltage between ECMterminal
COO
andground.
Voltage: Engine coolant temperature is
lower than10'C (50'F)
Battery voltage
Engine coolant temperature is
higher than60'C (140'F)
OV
CHECK INPUTSIGNAL CIRCUIT.
1) Disconnect ECMharness connector.
2) Disconnect injectionpumpharness
connector.
3) Check harness continuity between
ECM terminal
COO
andterminal
@.
Continuity shouldexist.
OK
CHECK COMPONENT
(Solenoid timer,engine speedsensor).
Refer to"COMPONENT INSPECTION"
on next page.
OK
Disconnect andreconnect harnesscon-
nectors inthe circuit. Thenretest.
Trouble isnot fixed.
Check ECMpin
terminals
fordamage
or the connection ofECM harness con-
nector. Reconnect ECMh~rness con-
nector andretest.
EC-402 OK
NG
NG
INSPECTION
END
Repair harness orcon-
nectors.
Replace solenoid timer,
engine
speedsensor.
Page 1123 of 1701
TROUBLEDIAGNOSES
Cooling FanControl
SYSTEM DESCRIPTION
Vehicle speedsensor Vehicle
speed
Engine coolant temperature sensorEngine
coolant temperature
ECM
(Engine
control module) Cooling
fan
relay(s)
Air conditioner switch Air
conditioner "ON"signal
The ECM controls thecooling fancorresponding tothe vehicle speed,engine coolant temperature, air
conditioner systempressure andairconditioner ONsignal. Thecontrol system has3-step control
[HIGH/LOW/OFF].
Operation
SEF953P
20
80
(12) (50)
Vehicle speedkmfh(MPH)
~ :Cooling fansoperate at"High" speed.
Air
conditioner switchIs"ON".
100 (212)
95 (203)
90 (194)
~LL
:J
0
eZ;
~o
E
2
C
'"
'0
o
U
Q>
c
'5>
c
w
Air
conditioner switchIs"OFF".
100 (212)
95 (203)
90 (194)
Q>
-
... LL
:J
0
~~
~o
E
2
c
'"
'0
o
U
Q>
c
'5>
c:
w 20
80
(12) (50)
Vehicle speedkmfh(MPH)
o :
Cooling fansdonot operate.
1222l:
Cooling fansoperate at"Low" speed.
EC-404
Page 1125 of 1701
TROUBLEDIAGNOSES
Cooling FanControl (Cont'd)
EC-COOL/F-02
LHDmodels
RHO models
(6):
(B):
I
EeM
(ENGINE
CONTROLMODULE)
@
S/W ~
IciJl
S/W
I
S/W
I~I@QD
;,:@
o
I
iTlJ
S/W S/W
1l@1
100'
GND-S GND-S
L
iJ
ENGINE COOLANT
_ TEMPERATURE
SENSOR
~
lLj:U
S/W
I
~ L
:>
GIS ~
S/W
d!b:. ~ d!b:.
Icpt
(ES-)-
-1~1
GIS
S/W
I I
GIS
t'ETr\'i\
S/W
db ~
,.,.b
1~~-M8--~
GIS
@
S/W
t
GIS
I@I
TW
GIS
It
o
(E203) ~
~11lJ1
GIS
I
@QD~
<:BID
I~I
GIS
t
o
~~
@GY
~(E203)
rnmz:mI
GY
~~
~GY
Refer
tolast page
(Foldout page).
HEC093
EC-406
Page 1127 of 1701
TROUBLEDIAGNOSES
Cooling FanControl (Cont'd)
Checkcooling fanlow
speed control circuit.
(Go to
I
PROCEDURE C
P
Check cooling fanhigh
speed control circuit.
(Go to
I
PROCEDURE D
I.)
NG
NG
INSPECTION
START
OK
CHECK COOLING FANHIGH SPEED
OPERATION. 1) Turn ignition switch"OFF".
2) Reconnect coolingfanrelay-2 and
cooling fanrelay-3.
3) Turn ignition switch"ON".
4) Make surethatcooling fanoperates
at high speed.
CHECK
COOLING FANLOW SPEED
OPERATION. 1) Turn ignition switch"OFF".
2) Disconnect enginecoolant tempera-
ture sensor connector.
SEF168R
3)Disconnect coolingfanrelays 1,2
and 3.
4) Turn ignition switch"ON".
5) Reconnect coolingfanrelay 1.
6) Make surethatcooling fanoperates
at low speed.
SEC163BA OK
INSPECTION END
EC-408
Page 1132 of 1701
TROUBLEDIAGNOSES
Air Conditioner CutControl
SYSTEM DESCRIPTION
The airconditioner isturned offunder thefollowing conditions:
RHO models .
• Engine coolant temperature ishigher than
grC
(20rF)
LHD models
• Engine coolant temperature ishigher than105°C (221°F)
For trouble diagnoses, referto"TROUBLE DIAGNOSES" inHA section.
Air
conditioner switch
Engine coolant temperature sensor
A/C
ONsignal
Engine coolant temperature
ECM
(Engine
control module) Air
condi-
tioner relay
•
EC-413
Page 1136 of 1701
SERVICEDATAANDSPECIFICATIONS (SOS)
General Specifications
PRESSURE REGULATOR
Regulated pressure
kPa (bar, kg/cm
2,
psi) 299
(2.99, 3.05,43.4)
Idle speed'1
rpm
Inspection
andAdjustment
ENGINE COOLANT TEMPERATURE
SENSOR
Temperature
'c
('F) Resistancekn
20 (68) 2.1
-2.9
•
90
(194) 0.24-0.26
110 (230) 0.14-0.15
No-load'2
Air conditioner: ONGA
14DE, GA16DE forEurope and
Israel
AIT: 800:1:50
Models withdaytime lightsystem
MIT: 800:1:50
Models withoutdaytime lightsystem
M/T: 700:1:50
GA15DE
M/T: 630:1: 50
A/T: 750:1: 50
GA 16DE forAustralia
M/T: 675:1: 50
A/T: 800:1:50
GA16DE exceptforEurope andIsrael,
and Australia
M/T: 650:1:50
A/T: 800:1: 50
900 ormore
FUEL
PUMP
Resistance [at25'C (77'F)] n
IACV-AAC VALVE
Approximately
0.2-5
Ignition timing GA
14DE, GA16DE forEurope and
Israel andGA16DE except forAustralia
10':1:2' BTDC
GA15DE
6':1:2' BTDC
GA16DE forAustralia
8':1:2' BTDC Resistance
[at25'C (77'F)) Approximately
10(For Europe
n andIsrael)
50 -100 (Except forEurope and
Israel)
0.40. 0.60
Throttle
position sensor
idle position'3 V
'1: Feedback controlled andneeds noadjustments
'2: Under thefollowing conditions:
• Air conditioner switch:OFF
• Electric load:OFF(Lights, heater,fan
&
rear defogger)
• A/T models: in"N" position
'3: Engine iswarmed upSUfficiently.
IGNITION COIL INJECTOR
Resistance [at25'C (77'F)) n
RESISTOR
Resistance [at25'C (77'F)] kn Approximately
10.14
Approximately 2.2
THROTTLE POSITIONSENSOR
Primary
voltage
Primary resistance
[at 20'C (68'F)]
Secondary resistance
[at 20'C (68'F)]
V
n
kn
12
Approximately 0.5-1.0
Approximately 12 Accelerator
pedalconditions
Completely released
Partially released
Completely depressed Resistance
kn[at25'C (77'F))
Approximately 0.5'
0.5 -4
Approximately 4
MASS AIRFLOW SENSOR
':
Engine iswarmed upsufficiently.
Supply voltage
Output voltage
V
V
Battery
voltage
1.2 -1.8'
': Engine iswarmed upSUfficiently andidling under no-load.
EC-417
Page 1137 of 1701
SERVICEDATAANDSPECIFICATIONS (SOS)
General Specifications
PRESSURE REGULATOR
Fuel pressure atidling
kPa (bar, kg/cm
2,
psi)
Vacuum hoseisconnected
Vacuum hoseisdisconnected Approximately
235 (2.35. 2.4.34)
Approxi mately
294 (2.94, 3.0,43)
Idle speed'1
No-load'2 rpm
(in "N" position) 800:1:50
Inspection
andAdjustment
FUEL PUMP
Resistance [at25'C (77'F)] n
Approximately 0.2-5.0
Air conditioner: ON
(in "N" position)
Ignition timing
Throttle position sensoridle
position V850
ormore
IACV-AACVALVE
15':1:2' BTDC
Resistance[at25'C (77'F)] n
0.35 -0.65 Approximately
10.0
'1: Feedback controlled andneeds noadjustments
'2: Under thefollowing conditions:
• Air conditioner switch:OFF
• Electric load:OFF(Lights, heaterfan
&
rear defogger)
IGNITION COIL INJECTOR
Resistance [at25'C (77'F)) n'
1_0_-_1_4 _
RESISTOR
Primary voltage
Primary resistance
[at 25'C (77'F))
V
12
0.5 -1.0 Resistance
[at25'C (77'F)) kn ApproXimately 2.2
Secondary resistance
[at 25'C (77'F))
kn
Approximately
25
THROTTLEPOSITIONSENSOR
MASS AIRFLOW SENSOR
Supply voltage
Output voltage
V
V
Battery
voltage (11-14)
1.3 -1.7'
Throttle
valveconditions
Completely closed
Partially open
Completely open Resistance
kn
[at 25'C (77'F)]
Approximately 1
1 - 10
Approximately 10
': Engine iswarmed upsufficiently andidling under no-load.
ENGINE COOLANT TEMPERATURE
SENSOR
Temperature
'c
('F)
20 (68)
50 (122)
90 (194) Resistance
kn
2.1-2.9
0.68 -1.00
0.236 -0.260
HEATED OXYGEN SENSOR HEATER
Resistance [at25'C (77'F)] n
I
3.3-6.3
EC-418
Page 1140 of 1701
Inner
side
SEM164F PRECAUTION
LIQUID GASKET APPLICATION PROCEDURE
a. Use ascraper toremove alltraces ofold liquid gasket from
mating surfaces andgrooves. Also,completely cleananyoil
from these areas.
b. Apply acontinuous beadofliquid gasket tomating surfaces.
(Use Genuine LiquidGasket orequivalent.)
• For oilpan, besure liquid gasket diameter is4.0 to5.0
mm (0.157 to0.197 in)for SRengine and3.5to4.5 mm
(0.138 to0.177 in)except forSRengine.
• For areas except oilpan, besure liquid gasket diameter
is 2.0 to3.0 mm (0.079 to0.118 in).
c. Apply liquidgasket toinner sealing surface aroundhole
perimeter area.
(Assembly shouldbedone within 5minutes aftercoating.)
d. Wait atleast 30minutes beforerefilling engineoiland
engine coolant.
LC-2
Page 1151 of 1701
ENGINECOOLING SYSTEM
IiJ
6.28 -8.34 (0.641 -0.851, 55.6-73.8)
SEC.
210 Water
Pump
~ 6.28 -8.34 (0.641 -0.851, 55.6-73.8)
WaterpumppUlley
l
~Liquid gasket
~ N.m(kg-m, in-Ib)
SLC989AB
•
CAUTION:
• When removing waterpumpassembly, becareful nottoget
coolant ontiming chain.
• Water pumpcannot bedisassembled andshould be
replaced asaunit.
• After installing waterpump, connect hoseandclamp
securely, thencheck forleaks using radiator captester.
REMOVAL
1. Drain coolant fromradiator andcylinder block.
2. Remove drivebeltsforcompressor, powersteering pump
and alternator.
3. Remove waterpumppulley.
4. Remove waterpump.
INSPECTION
1. Check bodyassembly forrust orcorrosion.
2. Check forrough operation duetoexcessive endplay.
SLC162A LC-13
Page 1154 of 1701
SEC.214
10
~ :N.m (kg-m, in-Ib)
ENGINE
COOLING SYSTEM
Radiator
~~ 3.7.5.0(0.38-0.51, 33.0•44.3)
~~ 3.8.4.5 (0.39 •0.46, 33.9.39.9)
. I
L!
\[jj
3.'-4.5 (0.39 -0.45,3>' -39.')
~,,~ 'fl
'~~WI-
I
--
5'\
,
),
"~
" It, -~ ~,.../ "---./"-- ~~
n.- /
i ~
r~ ~ ~'".~
i
@
'0)"
I
I
Jl~J)
1~~
6.86 •
~ "" <>!.
0
(0.70,60.7)
",,~~@
SLC991AB
G)
Reservoir tank
@
Reservoir tankbracket
@
Radiator cap
@
Mounting bracket
@
Upper hose
@
Washer
(J)
Drain plug
@
Mounting rubber
@
Oilcooler hose(AfTmodels)
@l
Radiator
@
Lower hose
@
Cooling fan
@
Cooling fanmotor
Cooling fancontrol system
• Cooling fansarecontrolled bythe ECM. Fordetails, referto
EC section ("Cooling FanControl", "TROUBLE DIAG-
NOSES").
Refilling enginecoolant
• For details onrefilling enginecoolant, refertoMA section
("REFILLING ENGINECOOLANT", "ChangingEngine
Coolant").
LC-16