sensor NISSAN ALMERA N15 1995 Service Manual

TROUBLEDIAGNOSIS FORDTC11 @KJ
Camshaft PositionSensor(CMPS) (Cont'd)

@]
~io
~IO

Il
ECM ECONNECroRl1
~JlI0

~29, ~
@,
@:
ForIsrael
@,
@:
ForEurope

~ IDISCO~

l41
V
~io

1=1
=E=CM=:!iE[il=CO=NN=EC=ro=RII

~~TGo[rnID

@,
@,
@,
@ :
Except forAustralia

@,@,@,@ :
For Australia
@a

SEF137R
COMPONENT INSPECTION
Camshaft positionsensor

1. Start engine.
2. Check voltage between camshaft positionsensorterminals

CID,
@
and ground withACrange.
3. IfNG, replace distributor assemblywithcamshaft position
sensor.
4. Remove distributor cap.Visually checksignal platefordam-
age ordust.

After thisinspection, diagnostictroublecodeNo.11might be
displayed withcamshaft positionsensorfunctioning properly.
Erase thestored memory.
AEC689
SEF887K
Terminal

@ :
Except forEurope andIsrael

@:
ForEurope andIsrael
(180.

signal)

@ :
Except forEurope andIsrael

(1.
signal) Voltage
Tester's pointerfluctuates between
5V and OV.

EC-100

TROUBLEDIAGNOSIS FORDTC12
Mass AirFlow Sensor (MAFS)

The mass airflow sensor measures theintake airflow rateby
taking apart ofthe entire flow.Measurements aremade insuch
a manner thattheECM receives electrical outputsignals var-
ied bythe amount ofheat emitting fromthehotwire placed in
the stream ofthe intake air.
When intake airflows intotheintake manifold througharoute
around thehotwire, theheat generated fromthehotwire is
taken awaybythe air.The amount ofheat depends onthe air
flow. Onthe other hand, thetemperature ofthe ..hot wire is

SEF154N
automatically controlledtoacertain number ofdegrees.
Therefore, itis necessary tosupply thehotwire withmore •
electric currentinorder tomaintain thetemperature ofthe hot
wire. TheECM knows theairflow bymeans ofthe electric
c~ange.

SEF695K

Diagnostic Trouble
Code No. Malfunction
isdetected when... Check
Items
(Possible Cause)

12
•
An excessively highorlow voltage fromthesensor •Harness orconnectors
is entered toECM. (Thesensor circuitisopen orshorted.)
• Mass airflow sensor

DIAGNOSTIC TROUBLECODECONFIRMATION
PROCEDURE
rif\
1)Turn ignition switch"ON",andwait foratleast 6
~ seconds.
2) Select "DATA MONITOR" modewithCONSULT.
3) Start engine andwait foratleast 3seconds.

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

r<ff\
1)Turn ignition switch&#34;ON&#34;,andwait foratleast 6
~ seconds.
2) Start engine andwait foratleast 3seconds.
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-101

TROUBLEDIAGNOSIS FORDTC12
Mass AirFlow Sensor (MAFS) (Coni&#39;d)

GA14DE, 16DEengine forEurope andIsrael, andGA15DE engine

W/R

rrh

;1

I I

! !t

I I
I I

~
.
EC-MAFS-01

MASS AIR
FLOW SENSOR

<lli)

W
JOINTCONNECTOR

-6

r~ B BB

ECM I..J
1

(ECCS •

Sg~GE~f
-!-
=

(IT)
ffi
ill)

G

~
QA+

lbj:n

G

<I>:

LHDmode 1s

@:
RHOmodels
@: ForEurope andIsrae 1

@:
Except@
_. Detectable line
for DTC
-: Non-detectable
line forDTC
~ B
~~ B B

~ &#34;:91

GND GND

-A -A

t

7.5A
RefertoEL-POWER.

[ill

W
i
L
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W!L~ W!L

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d=
(EI0l)

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CHID

/ JUNCTIONBOXNO.2
~RL (JOINTCONNECTORS)

&#39;T&#39; ~

0-<:0-
W/L
q---~
W!L

I
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W/L~ W/L~

4D-
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-<W-O

~cm .-
I

r-&#39;

W/L
W/L

It
~I
ECCS
~ RELAY

@

~~
WIG
W/R

I
i-t-O~

WIG
W/R W/R W/R

m~rr17n
riN9n

SSOFF VBVB CRTN

~1111~cm
3456 W

T.
@
2 1L

5
~1111~cm

4567B W
J&Lm

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GY
-~-@

ITIITITIITIII GY
Refer
tolast page
(Foldout page).

HEC030
EC-102

TROUBLEDIAGNOSIS FORDTC12
Mass AirFlow Sensor (MAFS) (Cont&#39;d)
GA 16DE engine models exceptforEurope andIsrael

EC-MAFS-02

Refer toEL-POWER.

(
&#34;

I&#39;
....
1

1 1
1 1
1 1
1 1
1

t
~!

1
1

I
I
I
I

JOINT

I
1

I
1
CONNECTOR

I I

em

I
I

~
....

.....--u1

~

,

1----
•

II

8 8 8

t...J
1

ffi
ill

-:
Detectable line
for DTC
-: Non-detectable
line forDTC
ECM (ECCS
CONTROL
MODULE)

em

MASS
AIR
FLOW SENSOR

rn>

I

W!R

rn
lbiJ~
OR W

OR W

1rf6il~
QA+ QA-

t

W!L

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1$1
(~~1;

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QHD

=r
CfID

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I

T-,

W!L W!L

IT~I
ECCS

n
RELAY

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(IT)

~~
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.
--_.

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W!RW!R

IFh~Wfl

SSOFF V8V8

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I
l!jj
CEID

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+

(IT)

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5
~rn>

ill]]]D
8R~em

UI.ill.I.ITIIII
GY
Refer
tolast page
(Foldout page).

HEC031
EC-103

TROUBLEDIAGNOSIS FOROTC12
Mass AirFlow Sensor (MAFS) (Conl&#39;d)
GA16DE forAustralia

EC-MAFS-01

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

11

B 8 B

t...l
1

~ ~

ECM
(ECCSCONTROL
MODULE)

em

,

I.

JOINT

CONNECTOR-6

@

--.~=-
-=~I--&#34;&#34;

OR W

II}; 1
14-81

QA+ QA-

(

I&#39;

I
I

I

I

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I

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1

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I
I

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I ...

r
,
W/R

W
3 MASS

AIR

FLOW

SENSOR

4=!Ilbj:Jlrn>
OR W

Refer
toEL-POWER.
W/L
I

W
/L
tETt&#39;i7\
r=b~

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W/L

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=r@
W/L

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T.

W/L W/L

I~~I
ECCS
~ RELAY

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WIG W/R

I

.--_
...

I

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WIG
W/R W/R

mlf5&#39;sil~

SSOFF VBVB

~I
11[iJ
@

3456 W~~
~BR
~@

IIIIlII.IIIITJ
GY
Refer
tolast page

(Foldout page).

101 102 103
107 108109
113 114 115 104
105 106
110
111
112
116
117
118

HEC064
EC-104

•

Repair
harness orcon-
nectors.
Repair harness orcon-
nectors.
Replace massairflow
sensor. Repair
harness orcon-
nectors.
NG
NG
NG
NG
INSPECTION
START
CHECK POWER SUPPLY.
1. Turn ignition switch&#34;OFF&#34;.
2. Disconnect massairflow sensor har-
ness connector.
3. Turn ignition switch&#34;ON&#34;.
4. Check voltage between terminal
@

and ground withCONSULT ortester.
Voltage: Batterypositive voltage
CHECK INPUTSIGNAL CIRCUIT.
Check harness continuity betweenter-
minal
CD
and ECM terminal
@
or@.
Continuity shouldexist.
If OK, check harness forshort.
INSPECTION END
OK
Trouble isnot fixed.
CHECK
GROUND CIRCUIT.
1. Turn ignition switch&#34;OFF&#34;.
2. Disconnect ECMharness connector.
3. Loosen andretighten engineground
screws.
4. Check harness continuity between
terminal
@
and ECM terminal
@
or

@
orengine ground.
Continuity shouldexist.
If OK, check harness forshort.
CHECK COMPONENT
(Mass airflow sensor).
Refer to&#34;COMPONENT INSPECTION&#34;
on page EC-107.
Disconnect andreconnect harnesscon-
nectors inthe circuits. Thenretest.
Check ECMpinterminals fordamage
or the connection ofECM harness con-
nector. Reconnect ECMharness con-
nector andretest.
SEF138R
TROUBLE
DIAGNOSIS FORDTC12
Mass AirFlow Sensor (MAFS) (Conl&#39;d)
DIAGNOSTIC PROCEDURE
For Europe ~GA 15DE engine
and Israel
I~
&#34;,,~~)rl

\~\&#34; /JJ~

11&#39;
Mass airflow sensor
_ harness connector

==---,

I-

I
I

d.-
I

;~

*1 ForEurope andIsrael, andGA15DE engine
*2 :GA 16DE engine models exceptfor
Europe andIsrael SEF139R
~
Mass airflow sensor
~(~lr~~

,~\ C/

Power steering \&#39;
tluic! reservxr ..--\ /,&#39;&#34;

W~
Meo,&#34;&#34;&#34;
EC-105

TROUBLEDIAGNOSIS FORDTC12
Mass AirFlow Sensor (MAFS) (Cont&#39;d)

Ii)
For Europe andIsrael, and
GA 15DE engine

~i5
cill1D

GA 16DE engine models exceptfor
Europe andIsrael

~15

1=&#39;
=E=CM==:!iH CONNECTOR
II

17 48

@ :Except forAustralia

@ :
For Australia SEF140R
[!J
For Europe andIsrael, and
GA 15DE engine models

~i5 ~i5

II
ECM
Ef
CONNECTOR
II
c:illli:>

16

@a

GA 16DE engine models exceptfor
Europe andIsrael

~io
~i5

II
ECM El&#39;CONNECTORII
ULffhD

16 47

@:
Except forAustralia
47 :For Australia SEF141R
EC-106

•

Voltage
V
Less than1.0
Conditions
Ignition switch&#34;ON&#34;(Engine stopped.)

Mass
airflow sensor

1. Turn ignition switch&#34;ON&#34;.
2. Start engine andwarm itup sufficiently.
3. Check voltage between terminal
CD
and ground.
Idle (Engine iswarmed-up sufficiently.) 1.2-1.8
4. IfNG, remove massairflow sensor fromairduct. Check hot
wire fordamage ordust.

TROUBLE
DIAGNOSIS FORDTC12
Mass AirFlow Sensor (MAFS) (Cont&#39;d)
COMPONENT INSPECTION

- -

* 1:For Europe andIsrae( andGA15DE engine
models
*2 :GA 16DE engine models exceptfor
Euro eand Irael SEF142R
SEF154N
EC-107

TROUBLEDIAGNOSIS FORDTC13
SEF594K Engine
Coolant Temperature Sensor(ECTS)

The engine coolant temperature sensorisused todetect the
engine coolant temperature. Thesensor modifies avoltage sig-
nal from theECM. Themodified signalreturns tothe ECM as
the engine coolant temperature input.Thesensor usesather-
mistor whichissensitive tothe change intemperature. The
electrical resistance ofthe thermistor decreases astempera-
ture increases.

20
18
6
9 4

B
2

Iii
10

1ii
0.8

&#39;0

£ 0.4
0.2
0.1 -20 020 40 60 80100
(-4) (32) (68)(104)(140)(176)(212)
Temperature &#39;C
(OF)

SEF012P
<

Reference data>

Engine coolant temper-
Voltage Resistance
ature
&#39;C (&#39;F) (V)

(kQ)
-10 (14) 4.47.0-11.4
20 (68)
3.52.1-2.9
50 (122)
2.20.6-1.0
90 (194) 0.9
0.23-0.26

Diagnostic
Trouble Code

No.
Malfunction
isdetected when... Check
Items
(Possible Cause)

13
•An excessively highorlow voltage fromthesensor •Harness orconnectors
is entered toECM. (Thesensor circuitisopen orshorted.)
• Engine coolant temperature sensor

DIAGNOSTIC TROUBLECODECONFIRMATION
PROCEDURE

(F.i\
1)Turn ignition switch&#34;ON&#34;.
~ 2)Select &#34;DATA MONITOR&#34; modewithCONSULT.
3) Wait foratleast 5seconds.

------------OR------------
fU\
1)Turn ignition switch&#34;ON&#34;andwait foratleast 5sec-
~ onds.
2) Turn ignition switch&#34;OFF&#34;, waitforatleast 5seconds
and then turn&#34;ON&#34;.
3) Perform &#34;Diagnostic TestMode II&#34;(Self-diagnostic
reSUlts) withECM.

EC-108

TROUBLEDIAGNOSIS FORDTC13 ~
Engine Coolant Temperature Sensor(ECTS)
(Cont&#39;d)

EC-ECTS-01

t
ENGINE
COOLANT
TEMPERATURE
SENSOR

m

@:ForEurope and
Israel

@:
Except@

*1&#34;,@ GY@BR!Y

,

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

lZlfll)

<I[g)
GY
B

~
GND
-A
B
~
GND -A ECM
(ECCSCONTROL
MODULE)

em

HEC032
EC-109