2008 NISSAN LATIO Service Repair Manual

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NISSAN LATIO 2008 Service Repair Manual 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
Dis

Page 90 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-78
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Diagnosis Procedure without CONSULT-III
INFOID:0000000001703194
TCM SELF-DIAGNOSTIC PROCEDURE
Description
If a malfunction occurs in electrical system,

AT-78
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Diagnosis Procedure without CONSULT-III
INFOID:0000000001703194
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.
DTC work support itemDescription 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
SCIA5472E

Page 91 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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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.
N

Page 92 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-80
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
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 t

Page 93 of 2771

NISSAN LATIO 2008 Service Repair Manual TROUBLE DIAGNOSIS
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7th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disco

Page 94 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-82
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
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

Page 95 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC U1000 CAN COMMUNICATION LINE
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< SERVICE INFORMATION >
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DTC U1000 CAN COMMUNICATION LINE
DescriptionINFOID:0000000001703195
CAN (Controller Area Network) is a se

DTC U1000 CAN COMMUNICATION LINE
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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".

Page 96 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-84
< SERVICE INFORMATION >
DTC U1000 CAN COMMUNICATION LINE
Wiring Diagram - AT - CAN
INFOID:0000000001703199
TCM TERMINALS AND REFERENCE VALUES
Refer to AT-71, "TCM Terminal and Reference Valu

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