Page 889 of 1701
TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
@J
Power Steering OilPressure Switch(Cont'd)
GA16DE forAustralia
EC-PST/SW-01
PWST
1
2•5
1
PU/W
I
PU/W
Iml@
=r~
PU/W
I
PU/W
1$11
~
PU/W
I
ECM
(ECCS
CONTROL
MODULE)
(IT)
-:
Detectable line
for
DTC
-: Non-detectable
line for
DTC
POWER STEERING
OIL PRESSURE
SWITCH
@
ON
OFF'---
~B
I
,-,
B B
..L. ..L.
do
~1)
~@
W,g)
GY
Refer
tolast page
(Foldout page).
m
,
101 102103
107 108109
113 114
115 104
105
106
110 111112
116
117
118
EC.170 HEC078
Page 890 of 1701

•
INSPECTION END
OK
The
power steering oilpressure switchisattached tothe power
steering high-pressure tubeanddetects apower steering load.
When apower steering loadisdetected,
it
signals theECM. The
ECM adjusts theIACV-AAC valvetoincrease theidle speed and
adjust forthe increased load.
INSPECTION START
OR
1. Start engine.
2. Check voltage between ECM
terminal
@
or
@
and ground.
Voltage: When steering wheelis
turned quickly.
Approximately OV
Except above
Approximately 5V
NG
DIAGNOSTIC
PROCEDURE
CHECK OVERALL FUNCTION.
fiii\
1.Turn ignition switch"ON".
~ 2.Perform "PW/STSIGNAL
CIRCUIT" in"FUNCTION
TEST" modewithCONSULT.
OR
(F.i\
1.Start engine.
~ 2.Check "PW/ST SIGNAL" in
"DATA MONITOR" modewith
CONSULT.
Steering isin neutral
position: OFF
Steering isturned:
ON
SEF591I
SEF235R
MEF023E
Power
steering oil___
pressure switch
-
~
to
TROUBLE
DIAGNOSIS FORNON-DETECTABLE ITEMS
@[]
Power Steering OilPressure Switch(Cont'd)
COMPONENT DESCRIPTION
RECORD
NEXT
II
START
•
PW/ST SIGNAL CIRCUIT.
HOLD STEERING WHEEL
IN AFULL
LOCKED
POSITION
THEN
TOUCH START
* MONITOR *NO FAIL
0
PW/ST SIGNAL OFF
@):
ForAustralia
@:
Except forAustralia
~i)~
II
ECM
Ef
CONNECTOR
II
43 25
EC-171
Page 891 of 1701
![NISSAN ALMERA N15 1995 Service Manual TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
@K]
Power Steering OilPressure Switch(Cont'd)
@:
ForAustralia
@:
Except forAustralia SEF176R
Repair
harness orcon-
nectors.
CHECK INPUTSIGNAL CIRCUIT. NISSAN ALMERA N15 1995 Service Manual TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
@K]
Power Steering OilPressure Switch(Cont'd)
@:
ForAustralia
@:
Except forAustralia SEF176R
Repair
harness orcon-
nectors.
CHECK INPUTSIGNAL CIRCUIT.](/manual-img/5/57349/w960_57349-890.png)
TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
@K]
Power Steering OilPressure Switch(Cont'd)
@:
ForAustralia
@:
Except forAustralia SEF176R
Repair
harness orcon-
nectors.
CHECK INPUTSIGNAL CIRCUIT. NG
Check thefollowing .
1. Disconnect ECMharness connector.
......---..
•Harness connectors
2. Check harness continuity between
aD,
(MID
ECM terminal
@
or
@
and terminal •
Harness connectors
G).
@,@or@,
Continuity shouldexist.
If
OK, check harness forshort. •
Harness foropen or
OK short
between ECMand
power steering oilpres-
sure switch
If NG, repair harness or
connectors.
CHECK COMPONENT NG
Replace powersteering
(Power steering oilpressure switch).
--...
oilpressure switch.
Refer to"COMPONENT INSPECTION"
below.
OK
Disconnect andreconnect harnesscon-
nectors inthe circuit. Thenretest.
Trouble isnot fixed.
Check ECMpinterminals fordamage or
the connection ofECM harness connec-
tor. Reconnect ECMharness connector
and retest.
@
1
CHECK GROUND CIRCUIT.
1. Turn ignition switch"OFF".
2. Disconnect powersteering oilpres-
sure switch harness connector.
3. Check harness continuity between
terminal
@
and engine ground.
Continuity shouldexist.
AEC760
IfOK, check harness forshort.
~i5
[i
c:ITb
~i5
ECM
Ef
CONNECTOR
II
43 25
II
INSPECTIONEND
Power steering oilpressure switch
1. Disconnect powersteering oilpressure switchharness con-
nector thenstart engine.
2. Check continuity betweenterminals
and
@.
[At
IV
ID
~ COMPONENT
INSPECTION
Conditions
Steering wheelisbeing turned
Steering wheelisnot being turned Continuity
Yes
No
AEC762
IfNG, replace powersteering oilpressure switch.
EC-172
Page 892 of 1701
TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Park/Neutral PositionSwitch
4J
B A
I
(E20f)~
--------(H)-O-
B~ B
•
,.
B B
~ ~
@rn
EC-PNP/SW-01
:
RHOmode 1s
<:A>:
A/Tmode 1s
:
M/Tmodels
@:
ForEurope andIsrael
@:
Except
@
@:
A/Tmodels except for
Europe andIsrael
@:
Except
@
*1"'@1 @2
,
*2"'@1 @6
,
-: Detectable line
for DTC
-: Non-detectable
line forOTC
• INHIBITOR
.. 1
SWITCH
...- 2
W>:
<:A>
N 0
l4=Jl
B
reM
(ECCS
CONTROL
MODULE)
CED
NEUTRAL
POSITION
SWITCH
@:
NEUT
I~I
G/OR
I¥J'@
~
G/OR
I
G/OR G/OR
1$1
~~~1)
1$1
~~~1)
G/OR G/OR
*_.
_T
I
~(E201)
O--
G/DR~ G/OR---
t
G/DR
I[b (E23)
=r='@QD
G/DR
m
OTHER -~
~(E20t)
~ B
~
(E222)
~ GY
Refer
tolast page
(Foldout page).
(E10t)
,
HEC047
EC-173
Page 893 of 1701
TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Park/Neutral PositionSwitch(Cont'd)
GA 16DE forAustralia
EC-PNP/SW-01
AIT
models
MIT
models
Detectable line
fa/"' DTC
Non-detectable line forDTC
ill
:
@:
-:
-:
• INHIBITOR
P __ ..1SWITCH
R N--D 2~:
ill
l4=Jl
B
I
B
Qj:
B
-cM>--O--'-,
BB
~ ~
~ @D
ECM
(ECCSCONTROL
MODULE)
(IT)
NEUTRAL POSITION
SWITCH
(E220):
@
NEUT
1
2•2
1
G/OR
I
G/OR
1$11
CEID
@
G/OR
1$1
~
G/OR
I
~@D
O-
G/OR
-ca
G/OR---
t
G/OR
[b,~
=r@D
G/OR
I
G/OR
m
OTHER --
~(222)
~ GY
fTIffiI
~B
Refer
tolast page
(Foldout page).
CHID
(E10t)
,
101 102 103
107 108109
113 114
115 104
105 106
110 111 112
116
117
118
HEC079
EC-174
Page 894 of 1701

•
Neutral
position switch
INSPECTION START
DIAGNOSTIC
PROCEDURE
SHIFT
OUT OFNIP-RANGETROUBLE
DIAGNOSIS FORNON-DETECTABLE ITEMS
@J
Park/Neutral PositionSwitch
(Cont'd)
When thegear position is"P"
(A/T
models only)or
"N",
parkl
neutral position switchis"ON",
ECM detects thepark/neutral positionwhencontinuity with
ground exists,
• NEUTRAL SWCIRCUIT.
THEN
TOUCH START
MEF983ESEF206L
~ CONNECT~
JA
L41E)~~
1=1
=E=CM~E CONNECTOR!'
35 22
INSPECTION
END
OK
Turn ignition switch"OFF".
NG
CHECK
OVERALL FUNCTION.
(ijJ\ 1.Turn ignition switch"ON".
~ 2.Perform "NEUTRAL SW
CIRCUIT" or"NEUTRAL POSI
SW CKT" in"FUNCTION
TEST" modewithCONSULT.
OR
rF.I\
2.Check "NEUTRAL SW"or
~ "NEUTPOSISW"signal in
"DATA MONITOR" modewith
CONSULT.
Neutral position: ON
Except above:OFF
OR
fff\
1.Set shift lever tothe neutral
~ position.
2. Disconnect ECMharness con-
nector.
3. Check harness continuity
between ECMterminal
@
or
@ and body ground.
Continuity shouldexist.
If OK, check harness forshort.
SEF236R
r:'I
.;,
i,MONITOR
*NOFAIL
0
START SIGNAL ON
CLOSED TH/POS ON
/lIR COND SIGOFF
NEUT POSISW ON
[ RECORD
@:
Fo'Australia
@:
Except forAustralia
__
II
START
CHECKGROUND CIRCUIT.
1. Disconnect neutralposition switch
harness connector.
2. Check harness continuity between
terminal @and body ground.
Continuity shouldexist.
If OK, check harness forshort.
OK NG
Check thefollowing.
• Harness connectors
@,(@)
• Harness foropen or
short between neutral
position switchand
body ground
If NG, repair harness or
connectors.
SEF5020 EC-175
Page 895 of 1701
TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Park/Neutral PositionSwitch(Cont'd)
Il
~io
ECM
E[coNNECTORII
35 22
~iV
m
@
Disconnect ECMharness con-
nector.
@:
ForAustralia
35 :Except forAustralia
SEF177R
CHECK
INPUTSIGNAL CIRCUIT.
1. Check harness continuity between
ECM terminal
@
or
@
and terminal
CD.
Continuity shouldexist.
If
OK, check harness forshort.
OK
CHECK COMPONENT
(Neutral positionswitch).
Refer to"Check ofPosition Switch"of
"ON-VEHICLE SERVICE"inMT section.
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.
INSPECTION END
EC-176 NG
NG
Check
thefollowing.
• Harness connectors
@,@
• Harness connectors
@,@!)
• Harness connectors
@),CmD
• Harness foropen or
short between ECM
and neutral position
switch
" NG, repair harness or
connectors.
Replace neutralposition
switch.
Page 896 of 1701

TROUBLEDIAGNOSIS FORNON-DETECTABLE ITEMS
Park/Neutral PositionSwitch(Cont'd)
• PARKJNEUT POSISWCKT • Inhibitor
switch
MEF983E
I
NEXT
II__
ST:_A_RT __
I
MEC7318
•
INSPECTION
END
OK
INSPECTION
START
"N"
or
"P":
ON
Except above: OFF
OR
1. Shift selector leverto"P"
position.
2. Disconnect ECMharness con-
nector.
3. Check harness continuity
between ECMterminal
@
or
@ and body ground.
Continuity shouldexist.
If OK, check harness forshort
4. Shift selector leverto"N"
position.
5. Check harness continuity
between ECMterminal
@
or
@ and body ground.
Continuity shouldexist.
If OK, check harness forshort
1!1
CHECK OVERALL FUNCTION.
(ij\
1.Turn ignition switch"ON".
~ 2.Perform "NEUTRAL POSISW
CKT" in"FUNCTION TEST"
mode withCONSULT.
OR
rF.I\
2.Check "NEUTRAL SW"or
~ "NEUTPOSISW"signal in
"DATA MONITOR" modewith
CONSULT.
SEF178R
SHIFT
OUT OFNIP-POSITION
THEN
TOUCH START
~rMONITOR ~NOFAIL
0
SlART SIGNAL ON
CLOSED TH/POS ON
'!\IR COND SIGOFF
NEUT POSISW ON
[ RECORD
@ :
For Australia
@ :
Except forAustralia
~i5@a
II
ECM
19'
CONNECTOR
TI
G ...._ CD
3522
~~
~io@a
6iB
NG
Turn ignition switch"OFF"
SEF228R CHECK
GROUND CIRCUIT.
1. Disconnect inhibitorswitchharness
connector.
2. Check harness continuity between
terminal G)and body ground.
Continuity shouldexist.
If OK, check harness forshort. NG
Check thefollowing.
• Harness connectors
@D,@])
• Harness foropen or
short between inhibitor
switch andbody ground
If
NG, repair harness or
connectors.
OK
Disconnect ECMharness con-
nector.
EC-177