NISSAN ALMERA N16 2003 Electronic Repair Manual

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-245
[EXC.F/EURO-OBD]
D
E
F
G
H
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MA
B
AT
SELF-DIAGNOSTIC RESULT TEST MODE
Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when...TCM self-diagnosis
Remarks Available by O/D OFF
indicator lamp or “A/T”
on CONSULT-II “A/T” “ENGINE”
Revolution sensor
●TCM does not receive the proper
voltage signal from the sensor.X—
VHCL SPEED SEN·A/TVEH SPD SEN/
CIR AT
Vehicle speed sensor (Meter)
●TCM does not receive the proper
voltage signal from the sensor.X—
VHCL SPEED
SEN·MTR—
Shift solenoid valve A
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
SHIFT SOLENOID/V A SFT SOL A/CIRC
Shift solenoid valve B
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
SHIFT SOLENOID/V B SFT SOL B/CIRC
Overrun clutch solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
OVERRUN CLUTCH S/
VO/R CLUCH SOL/
CIRC
T/C clutch solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
T/C CLUTCH SOL/VTCC SOLENOID/
CIRC
Line pressure solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X
LINE PRESSURE S/VL/PRESS SOL/
CIRC
Throttle position sensor
(Accelerator Pedal Position (APP) sensor)
●TCM receives an excessively low
or high voltage from the sensor.X
THROTTLE POSI SEN TP SEN/CIRC A/T
Engine speed signal
●TCM does not receive the proper
voltage signal from the ECM.X
ENGINE SPEED SIG
A/T fluid temperature sensor
●TCM receives an excessively low
or high voltage from the sensor.XTo be displayed in
case of abnormality
and when no record-
ing is made. BATT/FLUID TEMP
SENATF TEMP SEN/
CIRC
Engine control
●The ECM-A/T communication line
is open or shorted.X
A/T COMM LINE
*1—
TCM (RAM)
●TCM memory (RAM) is malfunc-
tioning—Refer to AT- 3 0 2 , "TCM Terminals and
Reference Value"CONTROL UNIT
(RAM)—
TCM (ROM)
●TCM memory (ROM) is malfunc-
tioning—Refer to AT- 3 0 2 , "TCM Terminals and
Reference Value"CONTROL UNIT
(ROM)—
TCM (EEP ROM)
●TCM memory (EEP ROM) is mal-
functioning.—Refer to AT- 3 0 2 , "TCM Terminals and
Reference Value"CONT UNIT(EEP
ROM)—

AT-246
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
X: Applicable
−: Not applicable
*1: A/T COMM LINE means CAN COMM LINE in this model.
DATA MONITOR MODE (A/T)
Initial start●This is not a malfunction message
(Whenever shutting off a power
supply to the TCM, this message
appears on the screen.)X
INITIAL START —
No failure
(NO SELF DIAGNOSTIC FAILURE INDI-
CATED FURTHER TESTING MAY BE
REQUIRED**)
●No failure has been detected. X Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when...TCM self-diagnosis
Remarks Available by O/D OFF
indicator lamp or “A/T”
on CONSULT-II “A/T” “ENGINE”
Item Displaymove to center Monitor items
Description Remarks
TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu
Vehicle speed
sensor 1 (A/T)
(Revolution sen-
sor)VHCL/S SE·A/T
[km/h] or [mph]
X——
●Vehicle speed com-
puted from signal of
revolution sensor is
displayed.When racing engine in N
or P with vehicle station-
ary, CONSULT-II data
may not indicate 0 km/h
(0 mph).
Vehicle speed
sensor 2
(Meter)VHCL/S
SE·MTR
[km/h] or [mph]
X——
●Vehicle speed com-
puted from signal of
vehicle speed sensor is
displayed.Vehicle speed display
may not be accurate
under approx. 10 km/h
(6 mph). It may not indi-
cate 0 km/h (0 mph)
when vehicle is station-
ary.
Throttle position
sensorTHRTL POS
SEN
[V]X——
●Throttle position sensor
signal voltage is dis-
played.
A/T fluid tempera-
ture sensorFLUID TEMP SE
[V]
X——
●A/T fluid temperature
sensor signal voltage is
displayed.
●Signal voltage lowers
as fluid temperature
rises.
Battery voltage BATTERY VOLT
[V]X——
●Source voltage of TCM
is displayed.
Engine speed ENGINE SPEED
[rpm]
X—X
●Engine speed, com-
puted from engine
speed signal, is dis-
played.Engine speed display
may not be accurate
under approx. 800 rpm.
It may not indicate 0 rpm
even when engine is not
running.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-247
[EXC.F/EURO-OBD]
D
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AT
Overdrive control
switchOVERDRIVE
SW
[ON/OFF]X——●ON/OFF state com-
puted from signal of
overdrive control SW is
displayed.
PN position (PNP)
switchPN POSI SW
[ON/OFF]
X——
●ON/OFF state com-
puted from signal of PN
position SW is dis-
played.
R position switch R POSITION SW
[ON/OFF]
X——
●ON/OFF state com-
puted from signal of R
position SW is dis-
played.
D position switch D POSITION SW
[ON/OFF]
X——
●ON/OFF state com-
puted from signal of D
position SW is dis-
played.
2 position switch 2 POSITION SW
[ON/OFF]
X——
●ON/OFF status, com-
puted from signal of 2
position SW, is dis-
played.
1 position switch 1 POSITION SW
[ON/OFF]
X——
●ON/OFF status, com-
puted from signal of 1
position SW, is dis-
played.
Kickdown switch KICKDOWN SW
[ON/OFF]
X——
●ON/OFF status, com-
puted from signal of
kick down SW, is dis-
played.●This is displayed even
when no kick down
switch is equipped.
Gear position GEAR
—— X
●Gear position data
used for computation
by TCM, is displayed.
Selector lever
positionSLCT LVR POSI
—— X
●Selector lever position
data, used for compu-
tation by TCM, is dis-
played.●A specific value used
for control is displayed
if fail-safe is activated
due to error.
Vehicle speed VEHICLE
SPEED
[km/h] or [mph]—— X
●Vehicle speed data,
used for computation
by TCM, is displayed.
Torque converter
slip ratioTC SLIP
RATIO
[0.000]———
●Ratio of engine revolu-
tion to input shaft revo-
lution of torque
converter
Torque converter
slip speedTC SLIP
SPEED
[rpm]———Difference in revolution
between input shaft revo-
lution and input shaft rev-
olution of torque
converterDisplay doesn't indicate
o rpm even if engine is
stopped.
But this isn't malfunc-
tion.
can communica-
tionCAN COMM
[OK/UNKWN]—X—
can circuit 1CAN CIRC 1
[OK/UNKWN]—X— Item Displaymove to center Monitor items
Description Remarks
TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu

AT-248
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
can circuit 2CAN CIRC 2
[OK/UNKWN]—X—
can circuit 3CAN CIRC 3
[OK/UNKWN]—X—
can circuit 4CAN CIRC 4
[OK/UNKWN]—X—
can circuit 5CAN CIRC 5
[OK/UNKWN]—X—
Throttle position THROTTLE
POSI
[/8]—— X
●Throttle position data,
used for computation
by TCM, is displayed.●A specific value used
for control is displayed
if fail-safe is activated
due to error.
Stop lamp switch BRAKE SW
[ON/OFF]
X——
●ON/OFF status is dis-
played.
ON... Brake pedal is
depressed.
OFF... Brake pedal is
released.
Line pressure duty LINE PRES DTY
[%]
—— X
●Control value of line
pressure solenoid
valve, computed by
TCM from each input
signal, is displayed.
Torque converter
clutch solenoid
valve dutyTCC S/V DUTY
[%]
—— X
●Control value of torque
converter clutch sole-
noid valve, computed
by TCM from each
input signal, is dis-
played.
Shift solenoid
valve ASHIFT S/V A
[ON/OFF]
—— X
●Control value of shift
solenoid valve A, com-
puted by TCM from
each input signal, is
displayed.Control value of sole-
noid is displayed even if
solenoid circuit is dis-
connected.
The OFF signal is dis-
played if solenoid circuit
is shorted. Shift solenoid
valve BSHIFT S/V B
[ON/OFF]
—— X
●Control value of shift
solenoid valve B, com-
puted by TCM from
each input signal, is
displayed.
Overrun clutch
solenoid valveOVERRUN/C S/
V
[ON/OFF]
—— X
●Control value of over-
run clutch solenoid
valve computed by
TCM from each input
signal is displayed.
Self-diagnosis dis-
play lamp
(O/D OFF indica-
tor lamp)SELF-D DP LMP
[ON/OFF]
—— X
●Control status of O/D
OFF indicator lamp is
displayed.
Voltage [V] — — — Value measured by voltage probe is displayed.Item Displaymove to center Monitor items
Description Remarks
TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-249
[EXC.F/EURO-OBD]
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AT
X: Applicable —: Not applicable : Option
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITH CONSULT-II)
1. If the ignition switch stays “ON” after repair work, be sure to turn
ignition switch “OFF” once. Wait for at least 3 seconds and then
turn it “ON” again.
2. Turn CONSULT-II “ON”, and touch “A/T”.
3. Touch “SELF-DIAG RESULTS”.
4. Touch “ERASE”. (The self-diagnostic results will be erased.)
Frequency [Hz] — — —Value measured by pulse probe is displayed. If mea-
s u re me nt is im pos si bl e, “# ” si gn i s di sp la y ed. “ # ” si gn
is also displayed at the final data value until the mea-
surement result is obtained.
DUTY-HI — — —
Duty cycle value for measurement probe is dis-
played.
DUTY-LOW — — —
PLS WIDTH-HI — — —
Measured pulse width of measurement probe is dis-
played.
PLS WIDTH-LOW — — —Item Displaymove to center Monitor items
Description Remarks
TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu
SAT014K
SAT971J
SAT970J

AT-250
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
Diagnostic Procedure Without CONSULT-II
ECS007QO
SELF-DIAGNOSTIC PROCEDURE (WITHOUT CONSULT-II)
1. CHECK O/D OFF INDICATOR LAMP
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch to “OFF” position.
Wait 5 seconds.
3. Turn ignition switch to “ACC” position.
4. Set overdrive control switch to “ON” position.
5. Move selector lever to “P” position.
6. Turn ignition switch to “ON” position. (Do not start engine.)
7. Does O/D OFF indicator lamp come on for about 2 seconds?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO AT- 3 0 9 , "
1. O/D OFF Indicator Lamp Does Not
Come On" .
2. JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch to “OFF” position.
2. Turn ignition switch to “ACC” position.
3. Move selector lever to “D” position.
4. Set overdrive control switch to “OFF” position.
5. Turn ignition switch to “ON” position. (Do not start engine.)
Wait more than 2 seconds after turning ignition switch “ON”.
>> GO TO 3
SAT774B
MCIA3103E
SAT653E

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-251
[EXC.F/EURO-OBD]
D
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AT
3.JUDGEMENT PROCEDURE STEP 2
1. Move selector lever to “2” position.
2. Set overdrive control switch to “ON” position.
>> GO TO 4
4.JUDGEMENT PROCEDURE STEP 3
1. Move selector lever to “1” position.
2. Set overdrive control switch to “OFF” position.
>> GO TO 5
5.JUDGEMENT PROCEDURE STEP 4
1. Depress accelerator pedal fully and release it.
>> GO TO 6
6.CHECK SELF-DIAGNOSIS CODE
Check O/D OFF indicator lamp. Refer to AT- 2 5 2 , "
JUDGEMENT OF
SELF-DIAGNOSIS CODE" .
>>DIAGNOSIS END
SAT780B
SAT781B
SAT981F
MCIA3103E

AT-252
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
JUDGEMENT OF SELF-DIAGNOSIS CODE
O/D OFF indicator lamp:
All judgement flickers are the same.
All circuits that can be confirmed by self-diagnosis are OK.1st judgement flicker is longer than others.
Revolution sensor circuit is short-circuited or disconnected.
 Go to VEHICLE SPEED SENSOR·A/T (REVOLUTION SEN-
SOR).
Refer to AT- 3 4 3
2nd judgement flicker is longer than others.
Vehicle speed sensor circuit is short-circuited or disconnected.
 Go to DTC VEHICLE SPEED SENSOR·MTR.
Refer to AT-3483rd judgement flicker is longer than others.
 Go to ACCELERATOR PEDAL POSITION (APP) SENSOR.
Refer to AT- 3 5 2
4th judgement flicker is longer than others.
Shift solenoid valve A circuit is short-circuited or disconnected.
 Go to SHIFT SOLENOID VALVE A.
Refer to AT-3575th judgement flicker is longer than others.
Shift solenoid valve B circuit is short-circuited or disconnected.
 Go to SHIFT SOLENOID VALVE B.
Refer to AT- 3 6 2
SCIA0694ESCIA0695E
SCIA0696ESCIA0697E
SCIA0698ESCIA0699E

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-253
[EXC.F/EURO-OBD]
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AT
6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.
 Go to OVERRUN CLUTCH SOLENOID VALVE.
Refer to AT- 3 6 77th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.
 Go to TORQUE CONVERTER CLUTCH SOLENOID VALVE.
Refer to AT-372
8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power
source circuit is damaged.
 Go to BATT/FLUID TEMP SEN(A/T FLUID TEMP SENSOR
CIRCUIT AND TCM POWER SOURCE).
Refer to AT- 3 7 79th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.
 Go to ENGINE SPEED SIGNAL.
Refer to AT-383
O/D OFF indicator lamp:
SCIA0700ESCIA0701E
SCIA0702ESCIA0703E

AT-254
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second t4 = 1.0 second
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (WITHOUT CONSULT-II)
1. If the ignition switch stays “ON” after repair work, be sure to turn ignition switch “OFF” once. Wait for at
least 3 seconds and then turn it “ON” again.
2. Perform “SELF-DIAGNOSTIC PROCEDURE (Without CONSULT-II)”. Refer to AT- 2 5 0
.
3. Turn ignition switch “OFF”. (The self-diagnostic results will be erased.)
10th judgement flicker is longer than others.
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
 Go to LINE PRESSURE SOLENOID VALVE.
Refer to AT-38811th judgement flicker is longer than others.
The ECM-A/T communication line is open or shorted.
Go to CAN COMMUNICATION LINE.
Refer to AT- 3 9 5
Lamp comes OFF.
PNP switch, overdrive control switch or throttle position switch cir-
cuit is disconnected or TCM is damaged.
 Go to 21. TCM Self-diagnosis Does Not Activate (PNP &
Overdrive Control Switches, and Throttle Position Sensor).
Refer to AT-333 Flickers as shown below.
Battery power is low.
Battery has been disconnected for a long time.
Battery is connected conversely.
(When reconnecting TCM connectors.—This is a problem.) O/D OFF indicator lamp:
SCIA0704ESCIA0705E
SCIA0706ESAT804H