sensor NISSAN ALMERA N15 1995 Service Manual

GA16DE forAustralia TROUBLE
DIAGNOSIS FORDTC13
[]K]

Engine Coolant Temperature Sensor(ECTS)
(Cont'd)

EC-ECTS-01

~ENGINE COOLANT

TEMPERATURE

SENSOR

(ffl)

U:iJ
lbi=ll

BR/Y B

t
-:
-:
Detectable
line
for DTC
Non-detectable line forDTC

~<rrD

@
GY
BR/Y

IT5TI
TW
B

115&#34;0
I

GND -A
ECM
(ECCS
CONTROL
MODULE)

em

101 102103
107 108109
113 114115 104
105 106
110 HI H2
116 117118

EC-110 HEC065

•

Replace enginecoolant
temperature sensor.
Check
thefollowing.
• Harness foropen or
short between ECM
and engine coolant
temperature sensor
If NG, repair harness or
connectors.
Check thefollowing.
• Harness foropen or
short between ECM
and engine coolant
temperature sensor
If NG, repair harness or
connectors.

NG
NG
NG

CHECK COMPONENT
(Engine coolanttemperature sensor).
Refer to&#34;COMPONENT INSPECTION&#34;
on next page.INSPECTION
START

m
CHECK POWER SUPPLY.

1. Turn ignition switch&#34;OFF&#34;.
2. Disconnect enginecoolant tempera-
ture sensor harness connector.
3. Turn ignition switch&#34;ON&#34;
4. Check voltage between terminal @
and ground withCONSULT ortester.

~oltage:
Approximately SV
SEF519Q
Ii)

CHECK GROUND CIRCUIT.

1. Turn ignition switch&#34;OFF&#34;.
2. Check harness continuity between

SEF518Q
terminal
G)
and engine ground.

Continuity shouldexist.

If OK, check harness forshort.

TROUBLE
DIAGNOSIS FORDTC13 ~
Engine Coolant Temperature Sensor(ECTS)
(Cont&#39;d)
DIAGNOSTIC PROCEDURE

Engine
coolant temperature
sensor harness connector

~/

~Io
ten

~Io

~

Disconnectandreconnect harnesscon-
nectors inthe circuits. Thenretest.
Trouble isnot fixed.
Check ECMpinterminals fordamage
or the connection ofECM harness con-
nector. Reconnect ECMharness con-
nector andretest.
INSPECTION END

EC-111

TROUBLEDIAGNOSIS FORDTC13 @KJ
Engine Coolant Temperature Sensor(ECTS)
, &#39;(Cont&#39;d)
COMPONENT INSPECTION
Engine coolant temperature sensor

Check resistance asshown inthe figure.

SEF152P Temperature
°C
(OF)

20 (68)
50 (122)
90 (194) Resistance
kQ
2.1 -2.9
0.68 -1.00
0.236 -0.260

If
NG, replace enginecoolant temperature sensor.

EC-112

TROUBLEDIAGNOSIS FORDTC21

Malfunction isdetected when...
Diagnostic
Trouble
Code No.
Ignition
coil
&
power
transistor harnessconnectors

AEC832 Ignition
Signal
COMPONENT DESCRIPTION
Ignition coil
&
power transistor (Builtintodistributor)

The ignition coilisbuilt intodistributor. Theignition signalfrom
the ECM issent tothe power transistor. Thepower transistor
switches onand offthe ignition coilprimary circuit.Asthe pri-
mary circuit isturned onand off,the proper highvoltage is
induced inthe coil secondary circuit.

Check Items
(Possible Cause)

•

21
•
The ignition signalinthe primary circuitisnot
entered toECM during engine cranking orrunning. •
Harness orconnectors
(The ignition primary circuitisopen orshorted.)
• Power transistor unit.
• Resistor
• Camshaft positionsensor
• Camshaft positionsensorcircuit

DIAGNOSTIC TROUBLECODECONFIRMATION
PROCEDURE
Note: Ifboth DTC11and 21are displayed, performTROUBLE
DIAGNOSIS FORDTC11first. Refer toEC-94.

(F.i\ 1)Turn ignition switch&#34;ON&#34;.
~ 2)Select &#34;DATA MONITOR&#34; modewithCONSULT.
3) Start engine.

----------OR ----------

1) Turn ignition switch&#34;ON&#34;.
2) Start engine.
3) Turn ignition switch&#34;OFF&#34;, waitforatleast 5seconds
and then turn&#34;ON&#34;.
4) Perform &#34;Diagnostic TestMode II&#34;(Self-diagnostic
results) withECM.

EC-113

TROUBLEDIAGNOSIS FOROTC34
PIEZO-ELEMENT Malfunction isdetected when....
Diagnostic
Trouble Code
No. SEF598KKnock
Sensor (KS)

The knock sensor isattached tothe cylinder block.Itsenses
engine knocking usingapiezoelectric element.Aknocking
vibration fromthecylinder blockissensed asvibrational pres-
sure. Thispressure isconverted intoavoltage signalandsent
to the ECM.

CheckItems
(Possible Cause)

•

00
1)
2)
3)
34
•An excessively loworhigh voltage fromtheknock •Harness orconnectors
sensor isentered toECM. (Theknock sensor circuitisopen orshorted.)
• Knock sensor
DIAGNOSTIC TROUBLECODECONFIRMATION
PROCEDURE
rif\
1)Turn ignition switch&#34;ON&#34;andselect &#34;DATA

\J!I)
MONITOR&#34; modewithCONSULT.
2) Start engine andrunitfor atleast 5seconds atidle
speed.

---------- OR----------

Start engine andrunitfor atleast 5seconds atidle
speed.
Turn ignition switch&#34;OFF&#34;, waitforatleast 5seconds
and then turn&#34;ON&#34;.
Perform &#34;Diagnostic TestMode II&#34;(Self-diagnostic
results) withECM.

EC-119

TROUBLEDIAGNOSIS FORDTC34
Knock Sensor (KS)(Cont&#39;d)
Except forEurope andIsrael

EC-KS-01

rn
JOINT
CONNECTOR-6

CW

1

ECM
(ECCS
CONTROL
MODULE)

em

KNK

11
2:
I
w

f .--------.

I I

I I
I I

I I
I I

l~ •

w~

wOO

f •

I I

I I

I I
I I

I I

I I

I&#39;: )
-:
Detectable line
for DTC
-: Non-detectable
line forOTC

<Ern>

@g)
BR
~oo
LL.@y B
w

m

KNOCK
SENSOR

<F102)

~cw

I1IIIITITDII
GY

EC-120 HEC034

GA16DE forAustralia TROUBLE
DIAGNOSIS FORDTC34
Knock Sensor (KS)(Cont&#39;d)

EC-KS-01

rn
JOINT
CONNECTOR-6

(F2)

1

ECM
(ECCS
CONTROL
MODULE)

em

KNK

1
5•4
1
w

f .------ .....

I I

I I

I I

I I

I I
I I

1&#39;:- •

w
<ffi)

<EW

w

f •

I I
I I

I I

I I

I I

!.:-
j
-:
Detectable line
for
DTC

-: Non-detectable
line for
DTC

•

fl<ill}

\!.1.SJ
GY
w

m

KNOCK
SENSOR

0:102)

~@

rn:IIIITIIIII
GY

101 102103
107 108109

113
114
115
104

105 106
110 111112
116
117
118

HEC067
EC-121

Replaceknocksensor.
NG
NG
Check thefollowing.
• Harness connectors

@,@

If NG, repair harness or
connectors.

r

OK
CHECK
SUB.HARNESS CIRCUIT.
1. Disconnect knocksensor harness
connector.
2. Check harness continuity between
knock sensor harness connector ter-
minal @and knock sensor sub-har-
ness connector terminal
@.

Continuity shouldexist.
If OK, check harness forshort.
CHECK COMPONENT
(Knock sensor).
Refer to&#34;COMPONENT INSPECTION&#34;
on next page.
Loosen
andretighten engineground
screws.

Fa
CHECK INPUTSIGNAL CIRCUIT. NG
Repair harness orcon-
1. Turn ignition switch&#34;OFF&#34;.
--.

nectors.
2. Disconnect ECMharness connector
and knock sensor sub-harness con-
nector.
3. Check harness continuity between
terminal @and ECM terminal
@
or

@.

Continuity shouldexist.
If OK, check harness forshort.
TROUBLE
DIAGNOSIS FORDTC34
Knock Sensor (KS)(Conl&#39;d)
DIAGNOSTIC PROCEDURE
For Europe andIsrael, andGA15DE.L..l
en~ine m\~~:e?, Is
Eng~eground
@&#39;~@)
1 _

- \.Y
INSPECTIONSTART

J--

Fa
~i5

II
ECM
]9&#39;CONNECTORII

27 54

,~\
C-/

Power steerin9\&#39;
fluid reservoir /&#39;\ /-:

.~~ :,c&#34;&#34;,

OK

@:
ForAustralia

@:
Except forAustralia

SEF144RDisconnect
andreconnect harnesscon-
nectors inthe circuit. Thenretest.
Trouble isnot fixed.
Check ECMpinterminals fordamage or
the connection ofECM harness connec-
tor. Reconnect ECMharness connector
and retest.
INSPECTION END
SEF776Q EC.122

TROUBLEDIAGNOSIS FOROTC34

Knock Sensor (KS)(ConI&#39; d)

COMPONENT INSPECTION

Knock sensor

• Use anohmmeter whichcanmeasure morethan10MQ.
1. Disconnect knocksensor harness connector.
2. Check resistance betweenterminal
@
and ground.
Resistance: 500-620 kQ[at25°C (77°F)]

CAUTION:

Discard anyknock sensor whichhasbeen dropped orunder-
gone shocks; useanew one.

AEC719
EC-123
•

TROUBLEDIAGNOSIS FOROTC41
Intake AirTemperature Sensor(IATS)

The intake airtemperature sensormounted tothe aircleaner
housing, detectsintakeairtemperature andtransmits asignal
to the ECM.
The temperature sensingunituses athermistor whichissen-
sitive tothe change intemperature. Electricalresistance ofthe
thermistor decreases inresponse tothe temperature rise.
This sensor isnot directly usedtocontrol theengine system. It
is used onlyforthe on-board diagnosis.

Diagnostic
Trouble Code

No.
41
Malfunction
isdetected when...
a) An excessively loworhigh voltage fromthesen-
sor isentered toECM.
b) Voltage senttoECM isnot practical whencom-
pared withtheengine coolant temperature sensor
signal. Check
Items
(Possible Cause)
• Harness orconnectors
(The sensor circuitisopen orshorted.)
• Intake airtemperature sensor.
*
MONITOR
*
NO FAIL

COOLAN TEMP/S 30°C

RECORD
I

SEF002P

CONNECT ~

II
ECM
a
CONNECTOR
II
I) ~

51
SEF006PDIAGNOSTIC
TROUBLECODECONFIRMATION
PROCEDURE
For themalfunction a)and b)

fF.I\
1)Wait untilengine coolant temperature isless than 90°C
~ (194°F).
(a) Turn ignition switch&#34;ON&#34;.
(b) Select &#34;DATA MONITOR&#34; modewithCONSULT.
(c) Check theengine coolant temperature.
(d) Ifthe engine coolant temperature isnot less than
90°C (194°F), turnignition switch&#34;OFF&#34;andcool
down engine.
2) Turn ignition switch&#34;ON&#34;.
3) Select &#34;DATA MONITOR&#34; modewithCONSULT.
4) Wait foratleast 5seconds.

---------OR ---------

~ 1)Wait untilengine coolant temperature isless than
~ 90°C(194°F.).
(a) Turn ignition switch&#34;ON&#34;.
(b) Check voltage between ECMterminal
@
and
ground.

Voltage: Morethan1.2(V)

(c) Ifthe voltage isnot more than1.2V, turnignition
switch &#34;OFF&#34;andcool down engine.
2) Turn ignition switch&#34;ON&#34;waitforatleast 5seconds.
3) Turn ignition switch&#34;OFF&#34;, waitforatleast 3seconds
and then turn&#34;ON&#34;.
4) Perform &#34;Diagnostic TestMode II&#34;(Self-diagnostic
results) withECM.

EC-124