1995 NISSAN ALMERA N15 check engine

•

2**
5*
Go
tostep

L:

Thermo-element stroke
*: Thermo-element isnormal. Adjustfirstidlecam only.
**: Thermo-element ismalfunctioning. Replacethermo-element, andperform
inspection beginningwithstep 2.
TROUBLE
DIAGNOSIS -General Description ~
Fast IdleCam (FIC) Inspection andAdjustment
- Except forEurope andIsrael (Cont'd)
3. Measure thermo-element stroke(L)and room temperature.
4. Check thermo-element stroke(L)asshown inthe figure.
Thermo-element

1645
1(0.6476)

I
15.35
: (06043)
'14.24
: (05610)

I

: 1290 :

I
(0.508)
I

I I

I I

I I

: I

I
r

I
r
r
I

I
I

-20 02025 40
HI (32)(68)(77) (104)

Thermo-element temperature°C(OF)
17

(0.669)

16

C (0630)

"" 15

~ (0591)

::J
14

-; (0.551)

t5
13

fJi
(0.512)
12 11.05
(0472) (0435)

11

(0433)

10

(0.394) 9.95
(0.392)
SEF0810

GA15DE
*.
GA16DE
Clearance
@ Adjusting
screw (s)
Lock nut

Fast idle

carn

SEF0820
SEF0830
5.
Adjust clearance
@
between throttlestopper andthrottle
adjusting screwtospecification byturning adjusting screw
(8).
Engine models Clearance
@
mm (in)
M/T 0.40-0.75 (0.0157 -0.0295)
GA15DE A/T0.61
-0.95 (0.0240 -0.0374)
M/T 0.72
-1.18 (0.0283 -0.0465)
GA16DE
A/T0.95
-1.43 (0.0374 -0.0563)
6. Rotate adjusting screw(8)clockwise orcounterclockwise
by Zturns according tothe following equation, thentighten
the adjusting screwlocknut.
L (mm) -L8* (mm) L(in) -L8* (IN)
Z =-------~ /Z =--------

Y
(mm)
Y
(in)
Value ofthe specified line(Ls) atthe temperature ofthermo-
element actuallymeasured.
Y
=
0.5 (GA 15DE)
0.8 (GA 16DE)
• Direction ofadjusting screw(8)rotation
(1) Positive (+)Z:Counterclockwise
(2) Negative (- )Z: Clockwise
EC-69

TROUBLEDIAGNOSES -General Description
CONSULT ReferenceValueinData Monitor
Mode

Remarks:
• Specification dataarereference values.
• Specification dataareoutput/input valueswhicharedetected orsupplied bythe ECM atthe connec-
tor.

*
Specification datamaynotbedirectly relatedtotheir components signals/values/operations.
(Le., Adjust ignition timingwithatiming lightbefore monitoring IGNTIMING. Specification datamight
be displayed evenwhen ignition timingisnot adjusted tospecification. ThisIGNTIMING moni-
tors thedata calculated bythe ECM according tothe input signals fromthecamshaft position
sensor andother ignition timingrelated sensors.)
• Ifthe real-time diagnosis resultsareNG, and theon-board diagnostic systemresultsareOK, when
diagnosing themass airflow sensor, firstcheck tosee ifthe fuel pump control circuitisnormal.

MONITOR ITEM
CONDITION SPEC
IFICA TION
CMPS.RPM (REF)•
Tachometer: Connect Almostthesame speed asthe CON-
• Run engine andcompare tachometer indicationwiththeCONSULT value.SULT value.
• Engine: Afterwarming up
Idle 1.0
-1.7V
MAS AIRIFL SE •
Air conditioner switch:OFF
• Shift lever: "N"
• No-load 2,000
rpm 1.5
-2.1V
COOLAN TEMPIS •Engine: Afterwarming up More
than70°C (158°F)
02 SEN 0-
0.3V
<-+
0.6 -1.0V
• Engine: Afterwflrming up Maintaining
enginespeedat2,000
LEAN
<-+
RICH
MIR
FIC
MNT rpm
Changesmorethan5times
during 10seconds .
VHCL SPEED SE•
Turn drive wheels andcompare speedometer indicationwiththeCONSULT Almost
thesame speed as
value the
CONSULT value
SA TTERY VOLT •Ignition switch:ON(Engine stopped) 11
-14V
• Ignition switch:ON Throttle
valvefullyclosed 0.35
-0.65V
THRTL POSSEN
(Enginestopped)
Throttlevalvefullyopened Approx.
4.0V
ST ART SIGNAL •Ignition switch:ON
-->
START
-->
ON OFF

-->
ON
-->
OFF
Throttle valve:
ON
• Ignition switch:ON Idle
position
CLSD THLIPOS
(Enginestopped)
Throttlevalve:
OFF
Slightly open

AIC
switch "OFF" OFF
AIR COND SIG •
Engine: Afterwarming up,idle the
engine
AIC

switch "ON"
ON
(Compressor operate&)
Shift lever "P"or"N" ON
PIN POSI SW •Ignition switch:ON
Exceptabove OFF

EC-74

TROUBLEDIAGNOSES -General Description @K]
ECM Terminals andReference Value(Conl'd)
ECM INSPECTION TABLE-GA16DE forAustralia
Specification dataarereference valuesandaremeasured betweeneachterminal and
@
(ECCS ground).

TER- WIRE
MINAL ITEM
CONDITION DATA
NO. COLOR
[Efl9ineisrunning.
I

0.3-0.6V
L Idle speed
1
WIB
Ignitionsignal

I
Engine isrunning.
I

L Engine speedis2,000 rpm. Approximately
0.9V
2
GYIR
Ignition
check IEngine
isrunning.
I

Approximately12V
L Idle speed
3 LIB Tachometer [Engine
isrunning.
I

Approximately0.9V
L Idle speed
IEngine isrunning.
I

Ilgnition switch"OFF'.'
0-1V
4
WIG
ECCS
relay(Self-shut- L
For afew seconds afterturning ignition
off) switch
"OFF"
Ilgnition switch"OFF"
I

BATTERYVOLTAGE
L Afew seconds passedafterturning ignition
(11-14V)
switch "OFF"
Ilgnition switch"ON"
I

L For 5seconds afterturning ignition switch
0.07-0.20V
"ON"

8
BIP Fuel
pump relay I
Engine isrunning.
I

Ilgnition switch"ON"
I

BATTERYVOLTAGE
L More than5seconds afterturning ignition
(11-14V)
switch "ON"
10
BIW

ECCSground IEngine
isrunning.
I

Engineground
L Idle speed
IEngine isrunning.
I

BATTERYVOLTAGE
Cooling fanrelay ~Cooling fanisnot operating.
(11-14V).
13 LG
(Highspeed: For
AIT
Cooling
fanisoperating atlow speed.
models)
I
Engine isrunning.
I

L Cooling fanisoperating athigh speed. Approximately
OV
IEngine isrunning.
I

BATTERYVOLTAGE
Cooling fanrelay L
Cooling fanisnot operating. (11-14V)
14 LGIR
(Lowspeed)

I
Engine isrunning.
I

L_
Cooling fanisoperating. 0.07
-0.30V

I
Engine isrunning.
I

L Both
AIC
switch andblower switchare 0.08
-0.2V
15
Y
Air
conditioner relay "ON".
IEngine isrunning.
I

BATTERYVOLTAGE
LAIC switchis"OFF". (11
-14V)

EC-79
•

TROUBLEDIAGNOSES -General Description @K]
ECM Terminals andReference Value(Conl'd)
ECM INSPECTION TABLE-Except GA16DE forAustralia

Specification dataarereference valuesandaremeasured betweeneachterminal and
@
(ECCS ground).
TERMINAL WIRE
NO. COLOR ITEM
CONDITION DATA
IEngine isrunning.1
0.2-0.3V

L
Idle speed
1
WIB
Ignitionsignal
IEngineisru~

L
Engine speedis2,000 rpm. Approximately
0.7V
Tachometer IEngineisrunning.1
2 LIB
(Modelswithtachome-

L
Idle speed 0.7
-0.9V
ter)
3 GYIR
Ignitioncheck jEngine
isrunning.1
Approximately13V

L
Idle speed
Engine isrunning.'

I

Ignition switch"OFF"I
0-1V
ECCS relay(Self-shut-
L

For afew seconds afterturning ignition
4
WIG

off) switch
"OFF"
llgnition switch"OFF"I
BATTERYVOLTAGE

L
Afew seconds afterturning ignition
(11-14V)
switch "OFF"andthereafter
IEngine isrunning.1
BATTERYVOLTAGE
Cooling fanrelay (Low
L

Cooling fanisnot operating. (11-14V)
9 LGIR
speed) IEngineisrunning.1

L
Cooling fanisoperating. Approximately
OV
IEngine isrunning.1
BATTERYVOLTAGE
Cooling fanrelay (High
t

Cooling fanisnot operating.
(11-14V)
10 LG Cooling
fanisoperating atlow speed.
speed) IEngineisrunning.1

L
Cooling fanisoperating athigh speed. Approximately
OV
IEngine isrunning.1

L
Both
AIC
switch andblower fanswitch Approximately
OV
11 Yor
GAir
conditioner relay are
"ON".
IEngine isrunning.1
BATTERYVOLTAGE

LAIC
switchis"OFF". (11
-14V)
IEngine isrunning.1
BATTERYVOLTAGE
VTC solenoid valve

L
Idle speed (11
-14V)
12 YIR (GA
16DE engine mod-
IEngineisrunning.1
els except forEurope
and Israel)

L
Engine isracing quickly fromidleto4,000 Approximately
OV
rpm at1st position.

EC-83
•

TROUBLEDIAGNOSIS FORPOWER SUPPLY ~
Main Power Supply andGround Circuit(Cont'd)

•

-!.OK

Go to
III
"CHECK
GROUND CIRCUIT" on
next page.
CHECK
POWER SUP-
PLY-I. 1. Turn ignition switch

"ON".

2. Check Yoltage between
ECM terminal
@,
@

or
@
and ground with
CONSULT ortester.

Voltage: Batteryvolt-
age

If NG, check thefollow-
ing .
• Harness connectors

GD,@orUD,

@

• Harness connectors

OO,@))

• Harness foropen or
short between ECM
and ignition switch
If NG, repair harness or
connectors.
Check thefollowing.
• Harness connectors
CID,
@O)ui)r
UD,

@or
F4,@

• Harness connectors

00, @))
or
Cill,

@

• Harness connectors

@,@))

• Joint connector
@

• 7.5A fuse
• Harness foropen or
short between ECM
and battery
If NG, repair harness or
connectors.
INSPECTION
START
Start engine.

Is engine running?

CHECK POWER SUPPLY-II.
1. Stop engine.
2. Check voltage between ECMterminal
~ or
@)
and ground withCONSULT
or tester.

Voltage: Batteryvoltage

OKYes
SEF134R
~i)
ECM
E[coNNECTORII

~;~~ ~i)

II
ECM
P!CONNECTORII

46 70

SEF133R

II

ECM

36 36

~85 ~r5

II
ECM
EJ
CONNECTOR
II
~53 1

~'.S~ ~

@:
Except forAustralia andEurope
-=

and Israel

@ :
For Australia

@ :
For Europe andIsrael SEF132R

@:
Except forAustralia

@ :
For Australia

~ @,@:
Except forAustralia
~FF
@,
@:
ForAustralia

@ ,
@: Except forAustralia

@ ,@:
ForAustralia
SEF135R
[!]

CHECK POWER SUPPLY-III.
1. Turn ignition switch"ON"andthen

"OFF".

2. Check Yoltage between ECMterminals

@,
@,
or
@,
i@
and ground with
CONSULT ortester.

After turning ignition switch"OFF",
battery voltage willexist forafew
seconds, thendrop toapproximately

av.

NG ~
Goto
III
"CHECK
GROUND CIRCUIT" on
next page.
Case-1: Batteryvoltage
does notexist fora
few seconds.
Case-2: Batteryvoltage
exists formore than
a few seconds.
Case-2
Case-1 Go
to[!1 "CHECK ECCS
RELAY" onnext page.
EC-91

TROUBLEDIAGNOSIS FORPOWER SUPPLY
em

Main Power Supply andGround Circuit(Cont'd)
Except forAustralia

~i5~

II
ECM
B'
CONNECTOR
II

6-13-39-107-108-116

.
,

For Australia

~i5@a

II
ECM
B'
CONNECTOR
II

10-19-39-43-106-112-118

.
,

SEF136R CHECK
GROUND CIRCUIT.

1. Turn ignition switch"OFF".
2. Loosen andretighten engineground
screws.
3. Disconnect ECMharness connector.
4. Check harness continuity between
ECM terminals
@,
@,
@,@,

Gill, Gill,Gill,
or
@),
@,
@,
@,

GID, GID,
@
andengine ground.

Continuity shouldexist.

If OK, check harness forshort.

OK

Che~k ECMpinterminals fordamage
or the connection ofECM harness con-
nector.
INSPECTION END

EC-93
NG

Repair harness orcon-
nectors.

•

TROUBLEDIAGNOSIS FORDTC11

Light emitting

diode
Wave

forming circuit
Camshaft
PositionSensor(CMPS)

The camshaft positionsensorisabasic component ofthe
EGGS. Itmonitors enginespeedandpiston position. These
input signals tothe EGM areused tocontrol fuelinjection, igni-
tion timing andother functions.
The camshaft positionsensorhasarotor plate andawave-
forming circuit.Therotor plate has360slits fora1
0
(paS) sig-
nal (except forEurope andIsrael) and4slits fora180
0
(REF)
signal. Thewave-forming circuitconsists ofLight Emitting
Diodes (LED)andphoto diodes.
The rotor plate ispositioned' betweentheLED andthephoto
diode. TheLED transmits lighttothe photo diode. Asthe rotor
plate turns, theslits cutthe light togenerate rough-shaped
pulses. Thesepulses areconverted intoon-off signals bythe
wave-forming circuitandsent tothe EGM.

SEF653B
180
0
signal

Diagnostic
Trouble Code

No.
11
Malfunction
isdetected when....
• Either
l'
or 180' signal isnot entered toECM for
the first fewseconds duringengine cranking.
• Either
l'
or 180' signal isnot entered toECM often
enough whiletheengine speedishigher thanthe
specified enginespeed.
• The relation between
l'
and 180'signal isnot in
the normal rangeduring thespecified engine
speed.

EC-94
Check
Items
(Possible cause)
• Harness orconnectors
(The camshaft positionsensorcircuitisopen or
shorted.)
• Camshaft positionsensor
• Starter motor(Refer toEL section.)
• Starting systemcircuit(RefertoEL section.)
• Dead (Weak) battery

•

Repair harness orcon-
nectors.
Check
thefollowing.
• Harness foropen or
short between camshaft
position sensorand
ECCS relay
If NG, repair harness or
connectors .

NG
NG
CHECK
POWER SUPPLY.

1. Turn ignition switch"OFF".
2. Disconnect camshaftpositionsensor
harness connector.
3. Turn ignition switch"ON".
4. Check voltage between terminal

@
and ground withCONSULT or
tester.

Voltage: Batteryvoltage
CHECK GROUND CIRCUIT.

1. Turn ignition switch"OFF".
2. Loosen andretighten engineground
screws.
3. Check harness continuity between
terminal
@
and engine ground.

Continuity shouldexist.

If OK, check harness forshort.

AEC815
SEF524Q
TROUBLE
DIAGNOSIS FORDTC11 ~
Camshaft PositionSensor(CMPS) (Conl'd)

Camshaft positionsensor
DIAGNOSTIC PROCEDURE

harness connector

\ INSPECTIONSTART
Trouble isnot fixed.

~i5

@a

(i1'lmI51~ CHECK
INPUTSIGNAL CIRCUIT.

1. Disconnect ECMharness connector.
2. Check harness continuity between
terminal
@
and ECM terminals
@.

@),
or
@,
@
or
@, @
terminal

@
and ECM terminals
@),
@
or

@,@.
SEF463Q Continuityshouldexist.

If
OK, check harness forshort.

OK

CHECK COMPONENT
(Camshaft positionsensor).
Refer to"COMPONENT INSPECTION"
on next page.

OK

Disconnect andreconnect harnesscon-
nectors inthe circuit. Thenretest.
Check ECMpinterminals fordamage
or the connection ofECM harness con-
nector. Reconnect ECMharness con-
nector andretest.
INSPECTION END
NG

Repair
harness orcon-
nectors.
Replace camshaft position
sensor.

EC-99