1995 NISSAN ALMERA N15 Service Manual

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS

Throttle Position Sensor(Cont'd)
GA16DE forAustralia

~CEID

~BR
EC-TPS-01

THROTTLE
_.

Detectable line
POSITION for
DTC
SENSOR
-:
Non-detectable

CEID
line
forDTC

f "1

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I

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I

t
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q
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I
JOINT

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CONNECTOR-6

I
em

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J

rq
~

I~

.-

t
J
J

P/L
y

B

n

1:91
1:31
15.0

I
BBB

AVCC TVOGND
ECM

!J
1

-1

-A
(ECCS
CONTROL
MODULE)

em
(fi3)
(Fi4)

~cw

EIITIIIIIIIIJ
GY

101 102
103
107 lOB 109

113
114 115 104
105
106
110 111
112
116
117
11B

EC-130 HEC068

•

INSPECTION
START

m
1

CHECK POWER SUPPLY.
NG
Repair harness orcon-

------.

1. Turn ignition switch"OFF". nectors.
2. Disconnect throttleposition sensor
harness connector.
3. Turn ignition switch"ON".
4. Check voltage between terminal
CD

and ground withCONSULTor tester.

Voltage: Approximately SV

m
1
0K

CHECK GROUND CIRCUIT.
NG
Check thefollowing.
1. Turn ignition switch"OFF".
------.

•Harness foropen or
2. Loosen andretighten engineground short
between ECM
screw. and
throttle position
3. Check harness continuity between sensor
terminal
@
and engine ground. If
NG, repair harness or

Continuity shouldexist.
connectors.
If OK, check harness forshort.

[!J
1
0K

CHECK INPUTSIGNAL CIRCUIT.
NG
Repair harness orcon-
1. Disconnect ECMharness connector.
------.

nectors.
2. Check harness continuity between
ECM terminal
@)
or
@
and terminal

@.

Continuity shouldexist.

If OK, check harness forshort.
~OK
ADJUST THROTTLE POSITIONSEN-
SOR. Perform "BasicInspection", EC-65.

~

CHECK COMPONENT NG
Replace throttleposition
(Throttle positionsensor).
------.

sensor. Toadjust it,per-
Refer to"COMPONENT INSPECTION" form
"Basic Inspection",
on next page. EC-65.
~OK
Disconnect andreconnect harnesscon-
nectors inthe circuit. Thenretest.
~ Trouble isnot fixed.
Check ECMpinterminals fordamage
or the connection ofECM harness con-
nector. Reconnect ECMharness con-
nector andretest.

i

INSPECTION END

SEF480Q
TROUBLE
DIAGNOSIS FORNON-DETECTABLE ITEMS
Throttle Position Sensor(Cont'd)
DIAGNOSTIC PROCEDURE

,~\ C/

Power steering)\
~

m

GA15DE
EC-131

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Throttle Position Sensor(Cont'd)
~io
~ SEF461Q

II
~i8

ECM
E
CONNECTOR
II

20 23

@:
ForAustralia

@:
Except forAustralia
SEF229R
COMPONENT INSPECTION
Throttle position sensor

1. Disconnect throttleposition sensorharness connector.
2. Make surethatresistance betweenterminals
@
and
@

changes whenopening throttlevalvemanually.

SEF146R
Throttle
valveconditions
Completely closed
Partially open
Completely open Resistance
(at25'C (77'F)J
Approximately 0.5
kn

0.5 -4.0
kn

Approximately 4.0
kn

If NG, replace throttleposition sensor.Toadjust it,perform
"Basic Inspection", EC-65.

EC-132

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Vehicle SpeedSensor (VSS)
LHD
models

EC-VSS-01

FUSE RefertoEL-POWER.
BLOCK
(JIB)

~

•

~ R/Y
-illfr
R/Y~~ R/Y-Ia~ VEHICLE

rITO)l~ ~I~ )
SPEED
0:@..;
I~ ~I~
(SENSOR

~ R
-lliW~
R~~ R~
@ID
COMBINATION
METER (SPEED-
OMETER)
~
~
1*.51

PU/R

I

PU
IR
IG"An\

d:::,~

I~ICEID
PU/R

I

PU/R
~VSP ECM
(ECCS
CONTROL
MODULE)

ill)
B/R

-!-

~
@:

Models withtachometer

@:
Modelswithout tachometer

*1 ... @30 @40

,

*2"'@12 @33
*3 ... @10 '@15
*4"'@ 9'@31

,

*5 ... @ 13 @32

,

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

L ~

~~

tIDID11ID
B
Refer
tolast page
(Foldout page).

~@ID

tID
GY

EC-133
em

L

HEC036

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Vehicle SpeedSensor (VSS)(Cont'd)
RHO models

EC-VSS-02

IGNITION SWITCH
ON orSTART
~R/Y
.j~
R/Y
.j~
R/Y~..gVEHICLE

rTIO\llE7iIT\
1E"n\1~ )SPEED

~ I
'l:1Q.y ~
I~
(SENSOR

~ R
.j1IDJ-
R
.j~
R~ ~

10A

[]]
Refer
toEL-POWER.

@:
Models withtachometer

@:
Models without tachometer

*1 @30 @40
*2
@
12 '@33

*3
@
10
'@
15

*4
@
9'@31

,

*5 ... @13 @32

,

-: Detectable line
for DTC
-: Non-detectable
line foraTC

B/R

-!-


FUSE
BLOCK
(JIB)

~
ECM (ECCS
CONTROL
MODULE)

em

1*151

PUIR

I

PU/RtG7?l\ r=b~

I~I@

PU/R

I

PU/R

13
1
21
VSP
COMBINATION
METER (SPEED-
OMETER)
~
~

L ~

~~

tmm:lID
B
~WID

tgj
GY
Refer
tolast page
(Foldout page).

em
L

HEC037
EC-134

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Vehicle SpeedSensor (VSS)(Conl'd)
GA 16DE forAustralia

EC-VSS-01

~ R/Y~~ R/Y,
U-
R/Y~{1VEHICLE

~I~ ~I~ )
SPEED

~ I
'l::.!Q!, ~
J~
C
SENSOR
~ R,~ R
'U-
R{] ~
IGNITION
SWITCH
ON or START

10A

[]]

•

Detectable
line
for DTC
Non-detectable line forDTC

-:
-:

B/R
-!-

~

Refer
toEL-PDWER.
FUSE
BLOCK
(JIB)

(M15)

ECM (ECCS
CONTROL
MODULE)

(ill

~

PU/R

I

PU/RIGM'l\
r=b,~

I~I@

PU/R

I

PU/R

1~61
VSP
COMBINATION
METER (SPEED-OMETER)

~

@

Refertolast page
(Foldout page).

~~

~ GY

@
Fff2T3T4j
(E202)

w
IID:illIID
B

104 105106
110 111
112

116 117
11B
101
102 103
107 10B 109
113 114
115

~---------------------------------,

L ~

HEC069
EC-135

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
@!J

Vehicle SpeedSensor (VSS)(Conl'd)

The vehicle speedsensor isinstalled inthe transaxle. Itcon-
tains apulse generator whichprovides avehicle speedsignal
to the speedometer. Thespeedometer thensends asignal to

Vehicle speed theECM.
sensor
AEC110 DIAGNOSTIC PROCEDURE
.V~HICLE SPEEDSENCKT.
AFTER TOUCH START.
DRIVE VEHICLE
AT 10km/h (6mph)OR
MORE WITHIN 15
see
INSPECTION
START
SEF941N
-(;(
NO FAIL
0

fijf.....
CONNECT
fIr:J:J:.~

1A1£) ~~

ECM
19'
CONNECTOR
II~

32 26
~l
INSPECTION
END
Check vehicle speedsen-
sor and circuil.
(Refer to"Inspectionl
Speedometer andVehicle
Speed Sensor" of
"METER ANDGAUGES"
in EL section.)
OK
NG
OK
NG
CHECK SPEEDOMETER FUNCTION.
Make surethatspeedometer functions
properly.
CHECK
OVERALL FUNCTION.
1. Jack updrive wheels.

(ij\
2.Perform "CARSPEED SEN
~ CIRCUIT" or"VEHICLE
SPEED SENCKT'" in"FUNC-
TION TEST'" modewithCON-
SULT OR
2. Read "CAR SPEED SEN"'or
"VHCL SPEED SE"signal in
"DATA MONITOR" modewith
CONSULT.
CONSULT valueshould bethe
same asthe speedometer indi-
cation. OR
2. Turn ignition switch"ON".
3. Rotate drivewhe'el byhand.
4. Check voltage between ECM
terminal
@
or@ and body
ground.
Voltage shouldvarybetween
approx. 0-5V.
SEF230R
MEF559D
20km/h
OFF
RECORD

l----
__ ,~--'

-N-EX-T
-II
STA-RT-

-(;( MONITOR
VHCL SPEED SE
PIN POSI SW

@:
ForAustralia

@:
Except forAustralia

II

EC-136

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Vehicle SpeedSensor (VSS)(Cont'd)

m
Models withtachometer

II
ECM
@ :For Australia
@ :Except forAustralia
Models without tachometer

II
ECM
@

CHECK INPUTSIGNAL CIRCUIT.
1. Turn ignition switch"OFF".
2. Disconnect ECMharness connector
and combination meterharness con-
nector.
3. Check harness continuity between
ECM terminal
@
and terminal
@
or

@,
ECM terminal
@
and terminal

@.
Continuity shouldexist.

If OK, check harness forshort.

OK

Disconnect andreconnect harnesscon-
nectors inthe circuit. Thenretest.
Trouble isnot fixed.
NG

Check thefollowing.
• Harness connectors

GD,@

• Harness foropen or
short between ECM
and combination meter

If
NG, repair harness or
connectors.

•

SEF147R
Check
ECMpinterminals fordamage
or the connection ofECM harness con-
nector. Reconnect ECMharness con-
nector andretest.
INSPECTION END

EC-137