NISSAN ALMERA N15 1995 Service Manual

HOWTOPERFORM EFFICIENT DIAGNOSIS FORANELECTRICAL INCIDENT
Circuit Inspection (Cont'd)

1. Connect thevoltmeter asshown, starting atthe battery and •
working yourwayaround thecircuit.
2. An unusually largevoltage dropwillindicate acomponent or
wire thatneeds tobe repaired. Asyou canseetheillustration
above, thepoor connection causesa4 volt drop.
The chart thatfollows illustrates somemaximum allowablevoltagedrops.Thesevalues aregiven asaguideline, theexact valueforeach
component mayvary.

COMPONENT

Wire
Ground Connections
Switch Contacts
VOLTAGE
DROP

negligible <.001volts
Approx.
0,1
volts
Approx. 0.3volts

GI-27 SGI854

HOWTOPERFORM EFFICIENT DIAGNOSIS FORANELECTRICAL INCIDENT
Circuit Inspection (Cont'd)
Relationship betweenopen/short (highresistance) circuitandtheECM pincontrol

System Description: Whentheswitch isON, theECM lights upthe lamp.

j

Case
1

Battery
'-----v--J

Short: FUSEblows.
Open: Inoperative lamp TERMINAL:
1
Monitoring
of the switch
operation (ON/OFF)

\~--~y

Short: FUSEblows
when switch isON.
Open: Inoperative lampECM
2
TERMINAL:
2
Power supply
to light up
the lamp

'"-----v~----)
Short
&
Open:
Inoperative lampLamo

~

Short: Noproblem
Open: Inoperative lamp
High resistance:
(Single strand) Seebelow.'

Input-output voltagechart

Pin Item
Condition Voltage
In1:ase ofhigh resistance
No. value[V]
suchassingle strand [V]
*

1
Switch
Switch Battery
Lowerthanbattery voltage
ON voltage Approx.8(Example)
OFF Approx.O Approx.O

2
Lamp
Switch Battery
Approx.O
ON voltage
(Inoperativelamp)
OFF Approx.O Approx.O
The voltage valueisbased onthe body ground.
: If high resistance existsinthe switch sidecircuit (caused byasingle strand), terminal 1does notdetect battery voltage. ECM
does notdetect theswitch isON even ifthe switch doesturnON.Therefore. theECM does notsupply powertolight upthe lamp.

Case 2

Lamp
Battery TERMINAL:
1
Ground control
to light upthe lamp
2TERMINAL:
2
Monitoring
of the switch
operation (ON/OFF) Switch

o

)

'---v---J

Short: FUSEblows.
Open: Inoperative lamp

Input-output voltagechart
\.----v

Short: LampstaysON.
Open: Inoperative lamp
ECM

\~--~v~--_.J

Short: LampstaysON.
(Same asthe switch ON)
Open: Inoperative lamp
High resistance: Seebelow.
(Single strand)'
"---y-----.J

Short: Noproblem
Open: Inoperative lamp
Pin Item Condition Voltage
Incase ofhigh resistance
No. value[V]
suchassingle strand [V]
*

1
Lamp
Switch
Approx.OBatteryvoltage
ON (Inoperat ivelamp)
OFF Battery
Batteryvoltage
voltage

2
Switch Switch Approx.OHigherthan0
ON Approx.4(Example)
OFF Approx.5
Approx.5
The voltage valueisbased onthe body ground.
• :If high resis1ance existsinthe switch sidecircuit (caused byasingle strand), terminal 2does notdetect approx. OV.ECM does
not detect theswitch isON even ifthe switch doesturnON.Therefore, theECM does notcontrol ground tolight upthe lamp.

SG1849-A

GI-28

HOWTOFOLLOW FLOWCHART INTROUBLE DIAGNOSES
NOTICE

The flow chart indicates workprocedures requiredtodiagnose
problems effectively. Observethefollowing instructions before
diagnosing.
1) Use theflow chart afterlocating probable causesofaprob-
lem following the"Preliminary Check",the"Symptom
Chart" orthe "Work Flow".
2) After repairs, re-check thattheproblem hasbeen com-
pletely eliminated.
3) Refer toComponent PartsandHarness Connector Location
for the Systems described ineach section foridentificationl
location ofcomponents andharness connectors.
4) Refer tothe Circuit Diagram forQuick Pinpoint Check.
If you must check circuit continuity betweenharnesscon-
nectors inmore detail, suchaswhen asub-harness isused,
refer toWiring Diagram ineach individual sectionandHar-
ness Layout inEL section foridentification ofharness con-
nectors.
5) When checking circuitcontinuity, ignitionswitchshould be

"OFF" .

6) Before checking voltageatconnectors, checkbattery volt-
age.
7) After accomplishing theDiagnostic Procedures andElectri-
cal Components Inspection,makesurethatallharness con-
nectors arereconnected asthey were.
•

Example
m ..
-=-=~-----------~

~

~i5
[YJ

SGI561
~

OISCONNECT

18
SGI562
INSPECTION
START
CHECK POWER SUPPLY.
1) Turn ignition switch"ON".
2) Check voltage between terminal
@

and ground.

~Ba"ery voltageshouldexist.

OK

2

Ii)
CHECK GROUND CIRCUIT.
1) Turn ignition switch"OFF"
2) Disconnect camshaftpositionsensor
harness connector.
3) Check resistance betweenterminal

@
and ground.

Resistance: Approximately
on

OK
GI-29 NG
Check
thefollowing
items. 1) Harness continuity
between camshaft
position sensorand
battery
2) ECCS relay-1
3) "SR" fusible link
4) Power source for

ECM

5) Ignition switch
Check thefollowing
items. 1) Harness continuity
between camshaft
position sensorand
ground
2) Ground circuitfor

ECM

SG1800-C

HOWTOFOLLOW FLOWCHART INTROUBLE DIAGNOSES
HOW TOFOllOW THISFLOW CHART

OJ
Work anddiagnostic procedure

Start todiagnose aproblem usingprocedures indicatedin
enclosed blocks,asshown inthe following example.

CHECK POWER SUPPLY.
1) Turn ignition switch"ON".
2) Check voltage between terminal
@

and ground.

Battery voltage shouldexist.
-+-

Check itembeing per-
formed.

} Procedure, stepsormea-
surement results

[2]
Measurement results

Required resultsareindicated inbold type inthe corre-
. sponding block,asshown below:
These havethefollowing meanings:

Battery voltage -11 .14V orapproximately 12V
Voltage: Approximately OV-Less than1V
~ Cross reference ofwork symbols inthe text and
illustrations

Illustrations areprovided asvisual aidsforwork proce-
dures. Forexample, symbol
m
indicated inthe leftupper
portion ofeach illustration corresponds withthesymbol in
the flow chart foreasy identification. Moreprecisely, the
procedure underthe"CHECK POWERSUPPLY" outlined
previously isindicated byan illustration
m.

[4J
Symbols usedinillustrations

Symbols includedinillustrations refertomeasurements or
procedures. Beforediagnosing aproblem, familiarize your-
self with each symbol.

Direction mark

Refer to"CONNECTOR SYMBOLS"onGI-13.

GI-30

HOWTOFOLLOW FLOWCHART INTROUBLE DIAGNOSES
Key tosymbols signifying measurements orprocedures

Symbol Symbolexplanation
SymbolSymbolexplanation

DISCONNECT
Checkafterdisconnecting theconnec-

~
Current
shouldbemeasured withan

~8
tor
tobe measured.
ammeter.

CONNECT
Checkafterconnecting theconnector

00

E)

tobe measured. Procedure
withCONSULT

(lr~~
Insert
keyinto ignition switCh.

@
Procedure
withoutCONSULT

(lr ..~
Remove
keyfrom ignition switch.

~AIC

switch is"OFF".

~
Turn
ignition switchto"OFF" position.

~AIC

switch is"ON".

~
"

Fanswitch is"ON". (Atany position
Turn ignition switchto"ON" position.

@:;

exceptfor"OFF" position)

~ "

Turn ignition switchto"START" posi-

@'~
Fan
switch is"OFF".
tion.

~~
Turn
ignition switchfrom"OFF" to

~
Apply
positive voltagefrombattery
"ACC" position.
BA;

withfuse directly tocomponents.

~~r
Turn
ignition switchfrom"ACC" to

m-

~'~:
Drive
vehicle.
"OFF" position.

,.-=.
L

@J~ ..
~(e.-

OON
Turn
ignition switchfrom"OFF" to

~~
Disconnect
batterynegative cable.
"ON" position.
BAi

~F
Turn
ignition switchfrom"ON" to

~
Depress
brakepedal.
"OFF" position.

~
Do
not start engine, orcheck with

~
Release
brakepedal.
engine stopped.

ID
Start
engine, orcheck withengine run-

~

ning. Depress
accelerator pedal.

.
.

~
Apply
parking brake.

i!J
Release
accelerator pedal.

..

~
Release
parkingbrake.

~
Pin
terminal checkforSMJ typeECM
and
AIT
control unitconnectors

or

Cff~H
Check
afterengine iswarmed upsuffi-

~ For
details regarding theterminal

ciently.
B

arrangement,refertothe foldout page.

~io

~
Voltage
shouldbemeasured witha

lltlllliR~

t~~~18

voltmeter.

[YJ

lJ9j
.

-

Circuit resistance shouldbemeasured

lfJJ
with
anohmmeter.
~

GI-31
•

CONSULTCHECKING SYSTEM
Function andSystem Application

Diagnostic FunctionECCSAirbag ASS NATS*1
test mode
Thismode enables atechnician toadjust somedevices
Work support fasterandmore accurately byfollowing theindications on
x

- --

CONSULT.
Self-diagnostic Self-diagnosticresultscanberead anderased quickly.
x
x x
x

results
ECU discriminated Classification
numberofareplacement ECUcanberead to

-
x

- -

No. preventanincorrect ECUfrom being installed.
Data monitor Input/Output
datainthe ECM canberead.
x

-
x

-

Diagnostic TestMode inwh.ich CONSULT drivessomeactua-
Active test tors
apart fromtheECMs andalso shifts some parameters
x

-
x

-

in aspecified range.
ECM partnumber ECM
partnumber canberead.
x

-
x

-

Function test Conducted
byCONSULT insteadofatechnician todetermine

x
- --

whether eachsystem is"OK" or"NG".
Control unitinitiali- Allregistered ignitionkeyIDsinNATS components canbe

- -
-
x

sation initialisedandnew IDscan beregistered.
Self-function checkECM
checks itsown NATS communication interface.

--
-
x

x :Applicable
*1: NATS: Nissan Anti-Theft System

LithiumBatteryReplacement

CONSUL Tcontains alithium battery. Whenreplacing thebattery obeythefollowing:

WARNING: Replace thelithium battery withSANYO ElectricCo.,ltd., CR2032 only.Useofanother batterymay
present arisk offire orexplosion. Thebattery maypresent afire orchemical burnhazard ifmistreated.
Do not recharge, disassemble ordispose ofinfire.
Keep thebaitery outofreach ofchildren anddiscard usedbattery conforming tothe local regulations.

Checking Equipment

When ordering thebelow equipment, contactyourNISSAN distributor.
Tool name
NISSAN CONSULT

CD
CONSULT unit
and accessories

@
Program card(EE940)
(AE930)*1, (AE950)*2,
(NATS-E940)*3 Description

NT004

* 1: For Australia
*2: Regarding ASSforAustralia, arevised program card(AE950) willbeapplicable tothis system in1995.
*3: An order forNATS program cardmust beplaced onlywithNISSAN EUROPE N.V.

GI-32

IDENTIFICATIONINFORMATION
Model Variation
For Europe LHO
EuropeLHD
Engine GA14DEGA16DE
CD20
5F 5F
AT 5F
Transaxle
RS5F30ARSSF31A
RL4F03ARS5F31A
L BAVALBF-EGA
LX BAVALDF-EGA BAYALDF-EGA BAYALDA-EGA
BVCALDF-NGA
4-door Sedan
SLXBAVALFF-EGA
BAYALFF-EGA BAYALFA-EGA
BVCALFF-NGA
SR BA
YALQF-EGA
L EAVALBF-EGA
LX EAVALDF-EGA
EAYALDF-EGA EAYALDA-EGA EVCALDF-NGA
3-door Hatchback SLXEAVALFF-EGA EA
YALFF-EGA
EAYALFA-EGA EVCALFF-NGA
SR EAVALQF-EGA
EAYALQF-EGA
GTI L FAVALBF-EGA
LX FAVALDF-EGA
FAYALDF-EGAFAYALDA-EGA FVCALDF-NGA
5-door Hatchback
SLXFAVALFF-EGA
FAYALFF-EGA FAYALFA-EGA FVCALFF-NGA
SR FAVALQF-EGA
FAYALQF-EGA
For Europe RHO
EuropeRHD
Engine GA14DEGA16DE CD20
SF 5F
AT SF
Transaxle RS5F30ARS5F31A RL4F03ARS5F31A
L BAVARBF-EEA
LX BAVARDF-EEA
BAYARDF-EEA BA
YARDA-EEA BVCARDF-NEA
4-door Sedan
SLXBAVARFF-EEA BA
YARFF-EEA BAYARFA-EEA BVCARFF-NEA
SR BAYARQF-EEA
L EAVARBF-EEA
LX EAVARDF-EEA
3-door Hatchback SLXEAVARFF-EEA EAYARFF-EEA
EAYARFA-EEA
SR EAVARQF-EEA EA
YARQF-EEA
GTI
.

L FAVARBF-EEA
LX FAVARDF-EEA FAYARDF-EEAFAYARDA-EEA FVCARDF-NEA
5-door Hatchback
SLXFAVARFF-EEA FAYARFF-EEA
FAYARFA-EEA FVCARFF-NEA
SR FAVARQF-EEA
FAYARQF-EEA
GI-33
•

ForAustralia IDENTIFICATION
INFORMATION
Model Variation (Cont'd)
Australia
Engine GA16DE
SR20DE
Transaxle 5F
4AT
5F4AT
RS5F31A RL4F03A
RS5F32A RL4F03A
LX BAYARDF-EMA BA
YARDA-EMA
4-door Sedan
SLXBA
YARFF-EMA BAYARFA-EMA
LX FAYARDF-EMA FAYARDA-EMA
Q FAYARDF-EMA FAYARDA-EMA
5-door Hatchback
SLXFAYARFF-EMA
FAYARFA-EMA
SSS FBYARUF-EMA
FBYARUA-EMA
Except Europe andAustralia
RHDExcept Europe andAustralia
Engine GA15DE
GA16DE
5F 4AT
5F4AT
Transaxle RS5F30ARL4F03ARS5F31A RL4F03A
LX BAWARCF-EWA BAWARCA-EWA
4-door Sedan
SLX BAYARGF-EWA
BAYARGA-EWA
XI FAWARCF-EWA
FAWARCA-EWA
5-door Hatchback
XIR FAYARGF-EWA
FAYARGA-EWA
GI-34

IDENTIFICATIONINFORMATION
Model Variation (Cont'd)
Prefix andsuffix designations:

B
AV
A
L
B

FN15
E

G

T
A

T
A: Standard
•

Model E:
RHO models forEurope
G: LHD models forEurope
W: RHO models exceptEurope andAustralia
M: Australia
E: Multiport fuelinjection systemengine
N: Diesel engine
A: 4-speed automatic transaxle
F: 5-speed manualtransaxle
B: L
0: LX or
Q

F: SLX

Q:SR
U: GTI orSSS
L: Left-hand drive
R: Right-hand drive
A: 2-wheel drivemodels
AV: GA14DE engine
AW: GA15DE engine
AY: GA16DE engine
BY: SR20DE engine
VC: CD20 engine
B: 4-door Sedan
F: 5-door Hatchback
E: 3-door Hatchback C:
LX orXI
G: SLX orXIR

GI-35

IDENTIFICATIONINFORMATION
Identification Number
Vehicle identification number
Emission controlinformation label Vehicle
identification plate
SGI908
VEHICLE IDENTIFICATION NUMBERARRANGEMENT
For Europe

:
JN1
B
A
A
N15U0
xxxxxx ..

T
T
T
~ehicleserialnumber

o :
Stopgap (nomeaning)
Destination
U :Europe
Model
A :2-wheel drive
Engine type
A: GA14DE engine
C :GA 16DE engine
E :SR20DE engine
F :CD20 engine
Body type
B :4-door Sedan
F :5-door Hatchback
E :3-door Hatchback
Manufacturer
JN1 :Nissan, Passenger vehicle

GI-36