1995 NISSAN ALMERA N15 MPG

TROUBLEDIAGNOSES
Self-diagnosis (ExceptEurope) (Cont'd)

@

Check warning lampfordeactivation
after driving vehicle over30km/h (20
MPH) foratleast oneminute.
After making certainthatwarning
lamp does notcome on,test theASS
in asafe area toverify thatitfunctions
properly.

•

SBR441C
CODE
NO.32

Tens digits Unitsdigits
Unit: Second

3.6

HOW TOERASE SELF-DIAGNOSTIC RESULTS
(Malfunction codes)

1. Disconnect thecheck terminal fromground (ASSwarning
lamp willstay lit).
2. Within 12.5seconds, groundthecheck terminal 3times.
Each terminal groundmustlastmore than1second. The
ASS warning lampgoesoutafter theerase operation has
been completed.
3. Perform self-diagnosis again.RefertoSR-56. Onlythestart
code should appear, nomalfunction codes.

0.4
1.60.40.4 0.4

3.6
ON
OFF
OFF
Self-diagnosiscompleted

"I

~~ i

::J1IU 1
L

p;eck~IJi
i

Open -._.-

Idlsconnect)
!

Ground
10---+1
I

__ .__ ... _--.J..
~9rt'_
!~~_1.~:':. ......L
J

; 12.5
see
j

Malfunction code
memory erased

ABR256
IGN

Warning

lamp ON
HOW
TOREAD SELF-DIAGNOSTIC RESULTS(Malfunction codes)

• Determine thecode No.bycounting thenumber oftimes thewarning lampflashes onand off.
• When several malfunctions occuratone time, uptothree codenumbers canbestored; thelatest
malfunction willbeindicated first.
• The indication beginswiththestart code 12.After thatamaximum ofthree codenumbers appearin
the order ofthe latest onefirst. Theindication thenreturns tothe start code 12torepeat (theindi-
cation willstay onfor five minutes atthe most).
• The malfunction codechart isgiven onthe next page.

Example: CodeNo.32REAR SENSOR SHORT-CIRCUIT

Start code: 12
Tens digits Unitsdigits

MALFUNCTION CODE/SYMPTOM CHART

Refer toSR-55.

BR-57

BASICSERVICE PROCEDURE
mJ

Idle Speed/Ignition Timing/IdleMixtureRatio
Adjustment (Cont'd)
@
SEF909P SEF913J

RECORD

@

M
may bethe
se ofa
blem, butthis
arely thecase

II

1

Check idlespeed.

00
Read
idlespeed in"DATA
MONITOR" modewithCONSULT.
OR

@
Check
idlespeed.

M/T:
800:l: 50rpm

A/T:
800:l: 50rpm (in
uN"
position)

OK ~NG
Check IACV-AAC valveandreplace ifnec-
essary.

~

Check IACV-AAC valveharness andrepair
if necessary.

~

Check ECMfunction- bysubstituting
another knowngoodECM.
-EC
cau
pro

1II111[!]
is
r

(j)
1.
See "M/R
FIC
MNT" in"DATA
MONITOR" mode.
2. Run engine atabout 2,000rpm
for about 2minutes under
no-load.

3.
Maintain engineat2,000 rpm
under no-load (engineiswarmed
up sufficiently). Checkthatthe
monitor fluctuates between
"LEAN" and"RICH" morethan5
times during 10seconds.

1 cycle: RICH->LEAN ->RICH
2 cycles: RICH->LEAN ->RICH
->LEAN ->RICH

NG
OR
~
(j)
1.
Set "Heated oxygensensor
monitor" inthe Diagnostic Test
Mode II.
(See page EC-252.)
2. Run
engine atabout 2,000rpm
for about 2minutes under
no-load.

3.
Maintain
engineat2,000 rpm
under no-load. Checkthatthe
malfunction indicatorlampgoes
on and offmore than5times dur-
ing 10seconds.
~OK
END

SEF135K

I

MEC7118
825rpm

2000rpm

RICH

1<

NO FAIL
D

RECORD
\ I/

.........
~/"

- CHECK-

/
......

/ I\

~MONITOR
~NOFAIL
0

CAS-RPM (REF)
CMPS.RPM (REF)
MIR
FIC
MNT

1<

MONITOR

@~~
~~r

~~V
-
-~

Data linkconnector forCONSULT
(Connect CHKandIGN terminals
with asuitable harness)

II

SEF051PEC-246

m
1

Rev engine twoorthree times under no-load, thenrun
engine atidle speed.

m
Check "CO"%.

Idle CO: Less than10%andengine runssmoothly.

After checking CO%.

00
1.
Touch "BACK".
OR

(j)
1.
Disconnect theresistor fromterminals ofengine
coolant temperature sensorharness connector.
2. Connect
enginecoolant temperature sensorhar-
ness connector toengine coolant temperature
sensor.
NG
1
0K
Replace heatedoxygen sensor.

fa
an

00
1.
See
"MIR
FIC
MNT" in"Data
monitor" mode.
2. Maintain
engineat2,000 rpmunder
no-load (engine iswarmed upsuffi-
ciently.). Checkthatthemonitor fluc-
tuates between "LEAN"and"RICH"
more than5times during 10sec-
onds.
1 cycle: RICH-->LEAN -.RICH
2 cycles: RICH-->LEAN -->RICH
-->LEAN -->RICH

OR

(j)
1.
Set
"Heated oxygensensormonitor"
in the Diagnostic TestMode II.
(Refef'to EC-253)
2. Maintain
engineat2,000 rpmunder
no-load. Checkthatthemalfunction
indicator lampgoesONand OFF
more than5times during 10sec-
onds.

I
NG OK

SEF913J

I

MEC7118

2000rpm

RICH
*

NO FAIL
D
RECORD
SEF909PBASIC
SERVICE PROCEDURE
mJ

Idle Speed/Ignition Timing/ldleMixtureRatio
Adjustment (Cont'd)

CID

SEF248F
\ I/

.........
~/'

- CHECK-

/
.......

/ I\
CMPS.RPM
(REF)

MIR F/CMNT

*

MONITOR

~~~~:?_-~ .
w=jr

~~~~"v
-~

Data linkconnector forCONSULT
(Connect CHKandIGN terminals
with asuitable harness)

SEF051PEC-248