1995 NISSAN ALMERA N15 Service Manual

TROUBLEDIAGNOSIS FORPOWER SUPPLY @KJ

Main Power Supply andGround Circuit(Cont'd)

GA16DE forAustralia

EC-MAIN-01

ECM(ECCS
CONTROL
MODULE)

em

Detectable line
for DTC
Non-detectable line forDTC
Refer
toEL-POWER.

-:
-:

ST
IGNITION
SWITCH

~
30A

IT]

I4J
B/R

I

B/R tE77\i\

r=:b~

I~I
B/R
tm'i'\\

cb~

'4=ll@

B/R

I

B/R

~
IGN
SW
Refer
toEL-POWER.
GND GND GNDGNDGND GNDGND
-C -C -I -I -E -E-E

13.9
I
I~31 ~~ n1~6111~21111:81

B B B/WB/W B/YB/YB/Y

L
I II II I

, I_I
,-e-e-=e---J

B B BB/Y

~..I L~

-!-
-!

CF13)
ffi

7.5A

~

W/L
tE77\i\

r=:b~

I~ICMID

W/L

IctJl~

=r@

W/L

I

e,--,,-,

W/LW/L

IT
~I
ECCS
~ RELAY

@

lbf=n~
WIG
W/R

I "__ ~

WIG
W/R W/R

m
1I~61
If6TI

SSOFF VBVB

W/L

17~1

BATT

III'
I
'liJ
(ffi ~ @

3456 W
T
L~~

t3RIID
W
Refer
tolast page
(Foldout page).

101 102103
107 108 109

113
114115 104
105 106
110 111112
116
117
118

HEC062
EC-90

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

(i]
1

CHECK HARNESS CONTINUITY NG
Repair harness orcon-
BETWEEN ECCSRELAY ANDECM
--..

nectors.
1. Disconnect ECMharness connector.
2. Disconnect ECCSrelay.
3. Check harness continuity between
ECM terminals
@,@,
or
@,
@
and terminal
@.

Continuity shouldexist.
If OK, check harness forshort.
Checkthefollowing .
• Harness connectors
OK ~''fflDr~,
M41
or
F4,M71

• Harness connectors

Ii
~,@IDorQD,

M78

CHECK VOLTAGE BETWEEN ECCS NG
•
Harness connectors
RELA YAND GROUND.
---+-

@,@ID
1. Check voltage between terminals G), •
Joint connector

@
and ground withCONSULTor
@

tester. •
Harness foropen or
Voltage: Batteryvoltage short
between ECCS
relay andbattery
OK If
NG, repair harness or
connectors.

Ii
CHECK OUTPUT SIGNALCIRCUIT. NG
Repair harness orcon-
1. Check harness continuity between ~
nectors.
ECM terminal
@
and terminal
@.

ContinUity shouldexist.
If OK, check harness forshort.

[I
OK
~
CHECK
ECCSRELAY. Replace
ECCSrelay.
1. Apply 12Vdirect current between
relay terminals G)and
@.

2. Check continuity betweenrelayter-
minals
@
and
@.

12V (G) -
@)
applied:
Continuity exists.
No voltage applied:
No continuity
OK

AEC6B4

SEF129R
TROUBLE
DIAGNOSIS FORPOWER SUPPLY
ffiJ

Main Power Supply andGround Circuit(Cont'd)

@

SEF023M EC-92

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

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

fiii\
1)Turn ignition switch"ON"andselect "DATA

\JV
MONITOR" modewithCONSULT.
2) Crank engine foratleast 2seconds.

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

~ 1)Crank engine foratleast 2seconds.
~ 2)Turn ignition switch"OFF", waitforatleast 5seconds
and then turn"ON".
3) Perform "Diagnostic TestMode II"(Self-diagnostic
results) withECM.

EC-95
•

TROUBLEDIAGNOSIS FORDTC11
[]KJ

Camshaft PositionSensor(CMPS) (Cont'd)
For Europe andIsrael

EC-CMPS-01

*1:
@
40

@30

*2: @31

@22

(b):

LHDmodels

@:
RHOmodels

@:
ForEurope

@:
ForIsrae 1

t

•
W!R
~
~ ~

B L

DISTRIBUTOR
(CAMSHAFT
POSITION
SENSOR)

m

Detectable
line
for OTC
Non-detectable line forDTC

(
:.

I I

I I

JOINT
II

CONNECTOR-6 ::

@
II

.--rq~==~
~=~.
J

I "

11 ~~

B B B REFREF

t.J
1

ffi) ffi)
Refer
to
7.5A EL-POWER. JUNCTIONBOX
[11] No.2(JOINT
CONNECTORS)
W!L ~
<:MID

6- W!L~ W!L
~-==_ -==~~
W!L
-----
./L~ ./L
----------.....:(B)-O

~ <:MID
I

W!L@

4n
W!L
@

I

rT

W!L W!L

I[XI
ECCS
~ RELAY

@

lbjJJ~
W!R WIG

I

...
_--.

... 1

ri-i
W!R W!RW!RWIG

~ff17n~m

CRTN VBVBSSOFF ECM
(ECCSCONTROL
MODULE)

em

-:
-:

~cw

ITIIJ:IITIIill
GY
~'I'I~@

3456 W
A@

T
L
Refer
tolast page
(Foldout page).

HEC028
EC-96

TROUBLEDIAGNOSIS FOROTC11
mJ

Camshaft PositionSensor(CMPS) (Cont'd)

Except forEurope andIsrael

EC-CMPS-02

•

II

8 B 8

t.J
1

(l=J3)
m

Detectable
line
for DTC
Non-detectable line forDTC

-:
-:

ECM (ECCS
CONTROL
MODULE)

(ill

DISTRIBUTOR
(CAMSHAFT
POSITION
SENSOR)


JOINT
CONNECTOR-6

I

W/R

m

---

~~~

L B/W B

(
,

I' ...
1

I I

I I
I I

I I

I I

I I
I I
I I
I I

I I

I I

I
I
ern

l'" --- ....
--iCY=_
-=~-- •

T,

B/W B/W

If31iI
I
4.0
I

POS POS

iT

L L

12~1 ';01

REF REF

t

BATTERY
]
7.5A RefertoEL-POWER.

ffi]

W!L
I

W/L
tE7iIT\

1FsB1~
~CBID

W!L

I~IQMD
@)

W/L

I

Ti

W!L W!L

IT]I
ECCS
~ RELAY

1bf=!J~(U)
WIG W/R

I

.
--_
..

I

T,

WIG W/R W/R

mmIT17TI

SSOFF VBVB

~' I'~
@) ~

4 56 78 W (1121341516) GY
~ern

[[[[OOJOJOJD
GY
Refer
tolast page
(Foldout page).

HEC029
EC-97