NISSAN LATIO 2007 Service Repair Manual

AT-88
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
6. Perform test drive to check gear shift feeling in accordance with
the instructions displayed.
7. Touch “YES” or “NO”.
8. CONSULT-II procedure ended.

If “NG” appears on the screen, malfunction may exist. Go
to “Diagnostic Procedure”.
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TROUBLE DIAGNOSIS
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Revision: June 20062007 Versa
Display Items List
DTC work support item Description Check item
1ST GR FNCTN P0731Following items for “A/T 1st gear function (P0731)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Shift solenoid valve B

Each clutch

Hydraulic control circuit
2ND GR FNCTN P0732Following items for “A/T 2nd gear function (P0732)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve B

Each clutch

Hydraulic control circuit
3RD GR FNCTN P0733Following items for “A/T 3rd gear function (P0733)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Each clutch

Hydraulic control circuit
4TH GR FNCTN P0734Following items for “A/T 4th gear function (P0734)” can be con-
firmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Shift solenoid valve A

Shift solenoid valve B

Overrun clutch solenoid valve

Line pressure solenoid valve

Each clutch

Hydraulic control circuit
TCC S/V FNCTN P0744Following items for “A/T TCC S/V function (lock-up) (P0744)” can
be confirmed.

Self-diagnosis status (whether the diagnosis is being performed
or not)

Self-diagnostic results (OK or NG)

Torque converter clutch sole-
noid valve

Each clutch

Hydraulic control circuit

AT-90
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
Diagnostic Procedure Without CONSULT-IIUCS005N2
TCM SELF-DIAGNOSTIC PROCEDURE
Description
If a malfunction occurs in electrical system, turning ignition switch ON will illuminate OD OFF indicator lamp for
2 seconds. To detect a malfunction, entering a self-diagnosis start signal retrieves information on malfunctions
from memory and indicates malfunction by blinking OD OFF indicator lamp.
Diagnostic Procedure
1. CHECK OD OFF INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF. Wait at least 5 seconds.
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-198, "
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.
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TROUBLE DIAGNOSIS
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Revision: June 20062007 Versa
3. CHECK SELF-DIAGNOSIS CODE
Check OD OFF indicator lamp. Refer to AT-91, "
Judgement of Self-diagnosis Code" .
>>DIAGNOSIS END
Judgement of Self-diagnosis Code
OD 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 AT-107, "DTC P0720 VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR)" .
2nd judgement flicker is longer than others.
Vehicle speed sensor circuit is short-circuited or disconnected.

Go to AT- 1 6 6 , "DTC VEHICLE SPEED SENSOR MTR" .4th judgement flicker is longer than others.
Shift solenoid valve A circuit is short-circuited or disconnected.
Go to AT-151, "DTC P0750 SHIFT SOLENOID VALVE A" .
5th judgement flicker is longer than others.
Shift solenoid valve B circuit is short-circuited or disconnected.

Go to AT- 1 5 6 , "DTC P0755 SHIFT SOLENOID VALVE B" .6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.

Go to AT-161, "DTC P1760 OVERRUN CLUTCH SOLENOID
VA LV E" .
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AT-92
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
7th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.

Go to AT- 1 3 4 , "DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE" .8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power sup-
ply circuit is damaged.

Go to AT-170, "DTC BATT/FLUID TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)" .
9th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.

Go to AT-11 3 , "DTC P0725 ENGINE SPEED SIGNAL" .10th judgement flicker is longer than others.
Turbine revolution sensor (power train revolution sensor) circuit is
short-circuited or disconnected.

Go to AT-176, "DTC TURBINE REVOLUTION SENSOR" . OD OFF indicator lamp
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TROUBLE DIAGNOSIS
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Revision: June 20062007 Versa
t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second
How to Erase Self-diagnostic Results
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait for at least
5 seconds and then turn it ON again.
2. Perform AT-90, "
Diagnostic Procedure Without CONSULT-II" .
3. Turn ignition switch OFF. (The self-diagnostic results will be erased.)
11th judgement flicker is longer than others.
Line pressure solenoid valve circuit is short-circuited or discon-
nected.

Go to AT- 1 4 5 , "DTC P0745 LINE PRESSURE SOLENOID
VA LV E" .12th judgement flicker is longer than others.
CAN communication line is damaged.

Go to AT - 9 4 , "DTC U1000 CAN COMMUNICATION LINE" .
Lamp turns off.
Park/neutral position (PNP) switch, overdrive control switch,
closed throttle position signal or wide open throttle position signal
circuit is disconnected or TCM is damaged.
(Because overdrive control switch signal, closed throttle position
signal and wide open throttle position signal are input via CAN
communication line malfunction may continue after self-diagno-
sis.)

Go to AT- 2 2 7 , "TCM Self-diagnosis Does Not Activate" . OD OFF indicator lamp
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AT-94
DTC U1000 CAN COMMUNICATION LINE
Revision: June 20062007 Versa
DTC U1000 CAN COMMUNICATION LINEPFP:31940
DescriptionUCS005N8
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 LogicUCS005N9

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “U1000 CAN COMM CIRCUIT” with CONSULT-II or 12th judgement flicker with-
out CONSULT-II is detected when TCM cannot communicate to other control units.
Possible CauseUCS005NA
Harness or connector
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureUCS005NB
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-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
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-96, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
WITHOUT CONSULT-II
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-90, "
Diagnostic Procedure Without CONSULT-II" .
4. If DTC is detected, go to AT-96, "
Diagnostic Procedure" .
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DTC U1000 CAN COMMUNICATION LINE
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Revision: June 20062007 Versa
Wiring Diagram — AT — CANUCS005N C
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AT-96
DTC U1000 CAN COMMUNICATION LINE
Revision: June 20062007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureUCS005ND
1. CHECK CAN COMMUNICATION CIRCUIT
With CONSULT-II
1. Turn ignition switch ON and start engine.
2. Select “SELF-DIAG RESULTS” mode for “A/T” with CONSULT-
II.
Is any malfunction of the
“U1000 CAN COMM CIRCUIT” indicated?
YES >> Print out CONSULT-II screen, Go to LAN section. Refer
to LAN-47, "
CAN System Specification Chart" .
NO >>INSPECTION END
Terminal Wire color Item ConditionJudgement standard
(Approx.)
5 L CAN H — —
6 P CAN L — —
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DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
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DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCHPFP:32006
DescriptionUCS005NE

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-II Reference ValueUCS005NF
On Board Diagnosis LogicUCS005NG

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0705 PNP SW/CIRC” with CONSULT-II is detected when TCM does not
receive the correct voltage signal from the switch based on the gear position.
Possible CauseUCS005N H

Harness or connectors
[The PNP switch circuit is open or shorted.]

PNP switch
DTC Confirmation ProcedureUCS005NI
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-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
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- 9 9 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
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
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