NISSAN LATIO 2007 Service Repair Manual

AT-208
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 20062007 Versa
7. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve A
–Shift valve B
–Shift solenoid valve A
–Shift solenoid valve B
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damage parts.
8. CHECK SYMPTOM
Check again. Refer to AT-61, "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2UCS005V4
SYMPTOM:

A/T does not shift from D1 to D2 at the specified speed on “Cruise Test — Part 1”.

A/T does not shift from D4 to D2 when depressing accelerator pedal fully at the specified speed
on “Cruise Test — Part 2”.
DIAGNOSTIC PROCEDURE
1. CHECK SYMPTOM
Check symptom . Refer to AT- 5 9 , "
Check at Idle" and AT- 6 1 , "Cruise Test — Part 1" .
Are
“Vehicle Dose Not Creep Forward in “D”, “2” or “1” Position” and “Vehicle Cannot Be Started from D1 ”
OK?
YES >> GO TO 2.
NO >> Go to AT-205, "
Vehicle Does Not Creep Forward in “D”, “2” or “1” Position" and AT-206, "Ve h ic l e
Cannot Be Started from D1" .
2. CHECK A/T POSITION
Check A/T position. Refer to AT-234, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT- 2 3 3 , "
Adjustment of A/T Position" .

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-209
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
3. CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT-107,
"DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" and AT-166, "DTC VEHICLE
SPEED SENSOR MTR" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.
4. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-532, "
DTC P2138 APP SENSOR" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace accelerator pedal position sensor.
5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT-53, "
Fluid Condition Check" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve A
–Shift valve B
–Shift solenoid valve A
–Shift solenoid valve B
–Pilot valve
–Pilot filter
3. Disassemble A/T. Refer to AT- 2 6 8 , "
Disassembly" .
4. Check the following items:
–Servo piston assembly
–Brake band
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

AT-210
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 20062007 Versa
7. DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve A
–Shift valve B
–Shift solenoid valve A
–Shift solenoid valve B
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8. CHECK SYMPTOM
Check again. Refer to AT-61, "
Cruise Test — Part 1" and AT-64, "Cruise Test — Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D2 → D3UCS005V5
SYMPTOM:
A/T does not shift from D2 to D3 at the specified speed on “Cruise Test — Part 1” and “Cruise Test —
Part 2”.
DIAGNOSTIC PROCEDURE
1. CHECK SYMPTOM
Check symptom. Refer to AT-59, "
Check at Idle" and AT-61, "Cruise Test — Part 1" .
Are
“Vehicle Does Not Creep Forward in “D”, “2” or “1” Position” and “Vehicle Cannot Be Started from D1 ”
OK?
YES >> GO TO 2.
NO >> Go to AT-205, "
Vehicle Does Not Creep Forward in “D”, “2” or “1” Position" and AT-206, "Ve h ic l e
Cannot Be Started from D1" .
2. CHECK A/T POSITION
Check A/T position. Refer to AT-234, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT- 2 3 3 , "
Adjustment of A/T Position" .

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-211
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
3. CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT-107,
"DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" and AT-166, "DTC VEHICLE
SPEED SENSOR MTR" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.
4. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-532, "
DTC P2138 APP SENSOR" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace accelerator pedal position sensor.
5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT-53, "
Fluid Condition Check" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve B
–Shift solenoid valve B
–Pilot valve
–Pilot filter
3. Disassemble A/T. Refer to AT- 2 6 8 , "
Disassembly" .
4. Check the following items:
–Servo piston assembly
–High clutch assembly. Refer to AT- 3 1 4 , "High Clutch" .
–Oil pump assembly. Refer to AT-289, "Oil Pump" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve B
–Shift solenoid valve B
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

AT-212
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 20062007 Versa
8. CHECK SYMPTOM
Check again. Refer to AT-61, "
Cruise Test — Part 1" and AT-64, "Cruise Test — Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. CHECK TCM
1. Check TCM input/output signal. Refer to AT - 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D3 → D4UCS005V6
SYMPTOM:

A/T does not shift from D3 to D4 at the specified speed on “Cruise Test — Part 1” and “Cruise Test
— Part 2”.

A/T must be warm before D3 to D4 shift will occur.
DIAGNOSTIC PROCEDURE
1. CHECK SYMPTOM
Check symptom. Refer to AT-59, "
Check at Idle" and AT-61, "Cruise Test — Part 1" .
Are
“Vehicle Does Not Creep Forward in “D”, “2” or “1” Position” and “Vehicle Cannot Be Started from D1 ”
OK?
YES >> GO TO 2.
NO >> Go to AT-205, "
Vehicle Does Not Creep Forward in “D”, “2” or “1” Position" and AT-206, "Ve h ic l e
Cannot Be Started from D1" .
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 8 2 , "
SELF-DIAGNOSTIC RESULT MODE" or AT-90, "Diagnostic Proce-
dure Without CONSULT-II" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 8 2 , "SELF-DIAGNOSTIC RESULT MODE" or AT -
91, "Judgement of Self-diagnosis Code" .
NO >> GO TO 3.
3. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-532, "
DTC P2138 APP SENSOR" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace accelerator pedal position sensor.
4. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
Fluid Condition Check" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-213
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve A
–Overrun clutch control valve
–Shift solenoid valve A
–Overrun clutch solenoid valve
–Pilot valve
–Pilot filter
3. Disassemble A/T. Refer to AT- 2 6 8 , "
Disassembly" .
4. Check the following items:
–Servo piston assembly
–Brake band
–Torque converter. Refer to AT- 2 6 8 , "Disassembly" .
–Oil pump assembly. Refer to AT-289, "Oil Pump" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
6. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Shift valve A
–Overrun clutch control valve
– Shift solenoid valve A
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK SYMPTOM
Check again. Refer to AT- 6 1 , "
Cruise Test — Part 1" and AT-64, "Cruise Test — Part 2" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 8.
8. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

AT-214
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 20062007 Versa
A/T Does Not Perform Lock-upUCS005V7
SYMPTOM:
A/T does not perform lock-up at the specified speed on “Cruise Test — Part 1”.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 8 2 , "
SELF-DIAGNOSTIC RESULT MODE" or AT-90, "Diagnostic Proce-
dure Without CONSULT-II" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 8 2 , "SELF-DIAGNOSTIC RESULT MODE" or AT -
91, "Judgement of Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-532, "
DTC P2138 APP SENSOR" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position sensor.
3. DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check following items:
–Torque converter clutch control valve
–Torque converter clutch solenoid valve
–Torque converter relief valve
–Pilot valve
–Pilot filter
3. Disassemble A/T. Refer to AT-268, "
Disassembly" .
4. Check the following items:
–Torque converter. Refer to AT-268, "Disassembly" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SYMPTOM
Check again. Refer to AT-61, "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 5.
5. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-215
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
A/T Does Not Hold Lock-up ConditionUCS005V8
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds on “Cruise Test — Part 1”.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-82, "
SELF-DIAGNOSTIC RESULT MODE" or AT-90, "Diagnostic Proce-
dure Without CONSULT-II" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 8 2 , "SELF-DIAGNOSTIC RESULT MODE" or AT-
91, "Judgement of Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT-53, "
Fluid Condition Check" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Torque converter clutch control valve
–Torque converter clutch solenoid valve
–Pilot valve
–Pilot filter
3. Disassemble A/T. Refer to AT- 2 6 8 , "
Disassembly" .
4. Check the following items:
–Torque converter. Refer to AT- 2 6 8 , "Disassembly" .
–Oil pump assembly. Refer to AT-289, "Oil Pump" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
4. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Torque converter clutch control valve
–Torque converter clutch solenoid valve
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.

AT-216
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 20062007 Versa
5. CHECK SYMPTOM
Check again. Refer to AT-61, "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Lock-up Is Not ReleasedUCS005V9
SYMPTOM:
Lock-up is not released when accelerator pedal is released on “Cruise Test — Part 1”.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 8 2 , "
SELF-DIAGNOSTIC RESULT MODE" or AT-90, "Diagnostic Proce-
dure Without CONSULT-II" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 8 2 , "SELF-DIAGNOSTIC RESULT MODE" or AT -
91, "Judgement of Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK SYMPTOM
Check again. Refer to AT-61, "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
3. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-217
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
Engine Speed Does Not Return to Idle (Light Braking D4 → D3 )UCS005VA
SYMPTOM:
Engine speed does not smoothly return to idle when A/T shifts from D4 to D3 on “Cruise Test — Part
1”.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT-82, "
SELF-DIAGNOSTIC RESULT MODE" or AT-90, "Diagnostic Proce-
dure Without CONSULT-II" .
Is any malfunction detected by self-diagnostic results?
YES >> Check the malfunctioning system. Refer to AT- 8 2 , "SELF-DIAGNOSTIC RESULT MODE" or AT-
91, "Judgement of Self-diagnosis Code" .
NO >> GO TO 2.
2. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-532, "
DTC P2138 APP SENSOR" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position sensor.
3. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT-53, "
Fluid Condition Check" .
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
4. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Overrun clutch control valve
–Overrun clutch reducing valve
–Overrun clutch solenoid valve
3. Disassemble A/T. Refer to AT- 2 6 8 , "
Disassembly" .
4. Check the following items:
–Overrun clutch assembly. Refer to AT-320, "Forward and Overrun Clutches" .
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Overrun clutch control valve
–Overrun clutch reducing valve
–Overrun clutch solenoid valve
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.