2008 NISSAN LATIO engine

TROUBLE DIAGNOSIS
AT-77
< SERVICE INFORMATION >
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CAN DIAGNOSTIC SUPPORT MONITOR MODE
Refer to LAN-12, "CAN Diagnostic Support Monitor".
DTC WORK SUPPORT MODE
Display Items List
*SHIFT S/V A (ON/OFF) — —
Displays status of check signal (reinput
signal) for TCM control signal output. Re-
mains unchanged when solenoid valves
are open or shorted. *SHIFT S/V B (ON/OFF) — —
*OVRRUN/C S/V (ON/OFF) — —
HOLD SW (ON/OFF) X — Not mounted but displayed.
BRAKE SW (ON/OFF) X —Stop lamp switch (Signal input with CAN
communication)
GEAR — XGear position recognized by the TCM up-
dated after gear-shifting
SLCT LVR POSI — XSelector lever position is recognized by
the TCM.
For fail-safe operation, the specific value
used for control is displayed.
VEHICLE SPEED (km/h) — X Vehicle speed recognized by the TCM.
THROTTLE POSI (0.0/8) — XDegree of opening for accelerator recog-
nized by the TCM
For fail-safe operation, the specific value
used for control is displayed.
LINE PRES DTY (%) — X
TCC S/V DUTY (%) — X
SHIFT S/V A (ON/OFF) — X
SHIFT S/V B (ON/OFF) — X
OVERRUN/C S/V (ON/OFF) — X
SELF-D DP LMP (ON/OFF) — X
TC SLIP RATIO (0.000) — —
TC SLIP SPEED (rpm) — —Difference between engine speed and
torque converter input shaft speed
Voltage (V) — —Displays the value measured by the volt-
age probe.
Frequency (Hz) — —
The value measured by the pulse probe
is displayed. DUTY-HI (high) (%) — —
DUTY-LOW (low) (%) — —
PLS WIDTH-HI (ms) — —
PLS WIDTH-LOW (ms) — —Monitored item (Unit)Monitor Item Selection
Remarks
TCM INPUT
SIGNALSMAIN SIG-
NALSSELEC-
TION FROM
MENU

TROUBLE DIAGNOSIS
AT-79
< SERVICE INFORMATION >
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4. Turn ignition switch ON. (Do not start engine.)
Does OD OFF indicator lamp come on about 2 seconds?
YES >> GO TO 2.
NO >> Stop procedure. Perform AT-176, "
OD OFF Indicator
Lamp Does Not Come On" before proceeding.
2.JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from “P” to “D” position.
4. Turn ignition switch ON. (Do not start engine.)
5. Keep pressing overdrive control switch while OD OFF indicator lamp is lighting up for 2 seconds. (OD
OFF indicator lamp is on.)
6. Keep pressing overdrive control switch and shift selector lever to the “2” position. (OD OFF indicator lamp
is on.)
7. Stop pressing overdrive control switch. (OD OFF indicator lamp is on.)
8. Shift selector lever to the “1” position. (OD OFF indicator lamp is on.)
9. Keep pressing overdrive control switch. (OD OFF indicator lamp is off.)
10. Depress accelerator pedal fully while pressing overdrive control switch.
>> GO TO 3.
3.CHECK SELF-DIAGNOSIS CODE
Check OD OFF indicator lamp. Refer to "Judgement of Self-diagnosis Code" .
>>DIAGNOSIS END
Judgement of Self-diagnosis Code
SCIA7140E

TROUBLE DIAGNOSIS
AT-81
< SERVICE INFORMATION >
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7th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.
⇒ Go to AT- 11 9
.8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power supply
circuit is damaged.
⇒ Go to AT- 1 5 2 .
9th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.
⇒ Go to AT- 1 0 1
.10th judgement flicker is longer than others.
Turbine revolution sensor (power train revolution sensor) circuit is
short-circuited or disconnected.
⇒ Go to AT- 1 5 8
. OD OFF indicator lamp
SCIA5597ESCIA5598E
SCIA5599ESCIA7082E

DTC U1000 CAN COMMUNICATION LINE
AT-83
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DTC U1000 CAN COMMUNICATION LINE
DescriptionINFOID:0000000001703195
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
On Board Diagnosis LogicINFOID:0000000001703196
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-III or 12th judgement flicker without
CONSULT-III is detected when TCM cannot communicate to other control units.
Possible CauseINFOID:0000000001703197
Harness or connector
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000001703198
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-III.
3. Touch “START”.
4. Wait at least 6 seconds or start engine and wait for at least 6 seconds.
5. If DTC is detected, go to AT-85, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Turn ignition switch ON.
2. Wait at least 6 seconds or start engine and wait at least 6 seconds.
3. Perform self-diagnosis. Refer to AT-78, "
Diagnosis Procedure without CONSULT-III".
4. If DTC is detected, go to AT-85, "
Diagnosis Procedure".

DTC U1000 CAN COMMUNICATION LINE
AT-85
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Diagnosis ProcedureINFOID:0000000001703200
1.CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-III1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-III.
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated?
YES >> Print out CONSULT-III screen, Go to LAN section. Refer to LAN-23, "CAN System Specification
Chart".
NO >>INSPECTION END

AT-86
< SERVICE INFORMATION >
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
DescriptionINFOID:0000000001703201
• The PNP switch assembly includes a transaxle range switch.
• The transaxle range switch detects the selector lever position and sends a signal to the TCM.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703202
On Board Diagnosis LogicINFOID:0000000001703203
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-III is detected when TCM does not receive
the correct voltage signal from the switch based on the gear position.
Possible CauseINFOID:0000000001703204
• Harness or connectors
[The PNP switch circuit is open or shorted.]
• PNP switch
DTC Confirmation ProcedureINFOID:0000000001703205
CAUTION:
• Always drive vehicle at a safe speed.
• If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-III.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
5. If the check result is NG, go to AT-88, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value
PN POSI SWWhen setting selector lever to “N” or “P” position. ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SWWhen setting selector lever to “D” position. ON
When setting selector lever to other positions. OFF
2 POSITION SWWhen setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SWWhen setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF

AT-88
< SERVICE INFORMATION >
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
Diagnosis Procedure
INFOID:0000000001703207
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-III.
3. Read out “P·N”, “R”, “D”, “2” and “1” position switches moving selector lever to each position.
OK or NG
OK >> GO TO 6.
NG >> GO TO 3.
2.CHECK INPUT SIGNAL
Without CONSULT-III
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position.
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 6.
Item name Condition Display value
PN POSI SWWhen setting selector lever to “N” or “P” posi-
tion.ON
When setting selector lever to other positions. OFF
R POSITION SWWhen setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SWWhen setting selector lever to “D” positions. ON
When setting selector lever to other positions. OFF
2 POSITION SWWhen setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SWWhen setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF
Selector lever positionTe r m i n a l
36 35 34 27 26
P, N B0000
R 0B000
D00B00
20 00B0
1 0000B
SCIA7162E

DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
AT-91
< SERVICE INFORMATION >
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DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
DescriptionINFOID:0000000001703209
The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000001703210
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001703211
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0710 ATF TEMP SEN/CIRC” with CONSULT-III is detected when TCM receives
an excessively low or high voltage from the sensor.
Possible CauseINFOID:0000000001703212
• Harness or connector
(The sensor circuit is open or shorted.)
• A/T fluid temperature sensor
DTC Confirmation ProcedureINFOID:0000000001703213
CAUTION:
• Always drive vehicle at a safe speed.
• If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode for “A/T” with CONSULT-III.
2. Touch “START”.
3. Start engine and maintain the following conditions for at least 10 minutes (Total). (It is not necessary to
maintain continuously.)
ENGINE SPEED: 450 rpm or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
4. If the check result is NG, go to AT-92, "
Diagnosis Procedure".
WITH GST
Follow the procedure “With CONSULT-III”.
Item name Condition Display value (Approx.)
FLUID TEMP SEWhen A/T fluid temperature is 20°C (68°F). 1.5 V
When A/T fluid temperature is 80°C (176°F). 0.5 V