2009 NISSAN LATIO cruise control

AT-132< SERVICE INFORMATION >
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
During AT-58, " Cruise Test - Part 1 " .
Does A/T shift from D 3 to D 4 at the specified speed?
YES >> GO TO 10.
NO >> Check control valve again. Repair or replace control valve assembly. 10.
CHECK DTC
Perform AT-129, " DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 11. Check for proper lock-up. 11.
CHECK LOCK-UP
During AT-58, " Cruise Test - Part 1 " .
A/T perform lock-up at the specified speed? YES >> Perform “Cruise test — Part 1” again and return to the
start point of this test group.
NO >> GO TO 12. 12.
CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-221, " Control Valve Assembly and Accumulators " .
- Torque converter clutch solenoid valve
2. Check resistance between terminal cord assembly harness con-
nector terminal and ground. Refer to AT-125, " Wiring Diagram -
AT - TCV " .
OK or NG OK >> GO TO 13.
NG >> Replace solenoid valve assembly. 13.
CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-221, " Control Valve Assembly and Accumulators " .
- Torque converter clutch solenoid valve SCIA7190E
SCIA7191E
Solenoid valve Connectror Terminal Resistance (Approx.)
Torque converter clutch
solenoid valve F30 5 - Ground 5 - 20
Ω SCIA2063E

DTC P0744 A/T TCC S/
V FUNCTION (LOCK-UP)
AT-133
< SERVICE INFORMATION >
D
E
F
G H
I
J
K L
M A
B AT
N
O P
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to AT-125, " Wiring Diagram - AT - TCV " .
OK or NG OK >> GO TO 14.
NG >> Replace solenoid valve assembly. 14.
CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-280, " Control Valve Assembly " .
2. Check control valves for sticking.
- Torque converter clutch control valve
- Torque converter clutch relief valve
OK or NG OK >> GO TO 15.
NG >> Repair control valve. 15.
CHECK LOCK-UP
During AT-58, " Cruise Test - Part 1 " .
A/T perform lock-up at the specified speed? YES >> GO TO 16.
NO >> Check control valve again. Repair or replace control
valve assembly. 16.
CHECK DTC
Perform AT-129, " DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> Perform “Cruise test — Part 1” again and re turn to the start point of this test group. SCIA2066E
SCIA7191E

Control Valve Assembly and Accumulators " .
2. Check the following items:
- Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil- ter)
- Line pressure solenoid valve
3. Disassemble A/T. Refer to AT-256, " Disassembly " .
4. Check the following item:
- Oil pump assembly. Refer to AT-277, " Oil Pump " .
OK or NG OK >> GO TO 4.
NG >> Repair or replace damaged parts. Inspections Before Trouble Diagno-
sis " .
OK or NG OK >> GO TO 6.
NG >> GO TO 5. Disassembly " .
2. Check the following items:
- Oil pump assembly. Refer to AT-277, " Oil Pump " .
- Forward clutch assembly. Refer to AT-306, " Forward and Overrun Clutches " .
- Forward one-way clutch. Refer to AT-317, " Rear Internal Gear and Forward Clutch Hub " .
- Low one-way clutch. Refer to AT-256, " Disassembly " .
- Torque converter. Refer to AT-256, " Disassembly " .
OK or NG OK >> GO TO 7.
NG >> Repair or replace damaged parts. Component " .
2. Check A/T fluid condition. Refer to AT-51, " Inspections Before Trouble Diagnosis " .
OK or NG OK >> GO TO 7.
NG >> GO TO 5. Check at Idle " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 8. TCM Terminal 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.
Vehicle Cannot Be Started from D 1 INFOID:0000000004305479
SYMPTOM:
Vehicle cannot be started from D 1 on “Cruise Test — Part 1”.

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. Cruise Test - Part 1 " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 9. TCM Terminal 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: D 1→ D 2or Does Not Kickdown: D 4→ D 2 INFOID:0000000004305480
SYMPTOM:
• A/T does not shift from D 1 to D 2 at the specified speed on “Cruise Test — Part 1”.
• A/T does not shift from D
4 to D 2 when depressing accelerator pedal fully at the specified speed on
“Cruise Test — Part 2”.
DIAGNOSTIC PROCEDURE Check at Idle " and
AT-58, " Cruise Test - Part 1 " .
Are “ Vehicle Dose Not Creep Forward in “ D ” , “ 2 ” or “ 1 ” Position ” and “ Vehicle Cannot Be Started from D OK?
YES >> GO TO 2.
NO >> Go to AT-187, " Vehicle Does Not Creep Forward in "D", "2" or "1" Position " and
AT-188, " Vehicle
Cannot Be Started from D .
Checking of A/T Position " .
OK or NG OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT-216, " Adjustment of A/T Position " .
and
AT-154 .
OK or NG OK >> GO TO 4.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuits.

AT
N
O P
Check accelerator pedal position sensor. Refer to
EC-412, " Description " (HR16DE),
EC-959, " Component
Description " (MR Type 1) or
EC-1481, " Component Description " (MR Type 2).
OK or NG OK >> GO TO 5.
NG >> Repair or replace accelerator pedal position sensor. Component " .
2. Check A/T fluid condition. Refer to AT-51, " Inspections Before Trouble Diagnosis " .
OK or NG OK >> GO TO 7.
NG >> GO TO 6. 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-256, " Disassembly " .
4. Check the following items:
- Servo piston assembly
- Brake band
OK or NG OK >> GO TO 8.
NG >> Repair or replace damaged parts. 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. Cruise Test - Part 1 " and
AT-61, " Cruise Test - Part 2 " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 9. TCM Terminal and Reference Value " .
2. If NG, recheck TCM pin terminals for dam age or loose connection with harness connector.
OK or NG OK >>
INSPECTION END
NG >> Repair or replace damaged parts.

Check at Idle " and
AT-58, " Cruise Test - Part 1 " .
Are “ Vehicle Does Not Creep Forward in “ D ” , “ 2 ” or “ 1 ” Position ” and “ Vehicle Cannot Be Started from D OK?
YES >> GO TO 2.
NO >> Go to AT-187, " Vehicle Does Not Creep Forward in "D", "2" or "1" Position " and
AT-188, " Vehicle
Cannot Be Started from D .
Checking of A/T Position " .
OK or NG OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT-216, " Adjustment of A/T Position " .
and
AT-154 .
OK or NG OK >> GO TO 4.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuits. Description " (HR16DE),
EC-959, " Component
Description " (MR Type 1) or
EC-1481, " Component Description " (MR Type 2).
OK or NG OK >> GO TO 5.
NG >> Repair or replace accelerator pedal position sensor. Component " .
2. Check A/T fluid condition. Refer to AT-51, " Inspections Before Trouble Diagnosis " .
OK or NG OK >> GO TO 7.
NG >> GO TO 6. 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-256, " Disassembly " .
4. Check the following items:
- Servo piston assembly
- High clutch assembly. Refer to AT-301, " High Clutch " .
- Oil pump assembly. Refer to AT-277, " Oil Pump " .
OK or NG OK >> GO TO 8.
NG >> Repair or replace damaged parts.

AT
N
O P 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. Cruise Test - Part 1 " and
AT-61, " Cruise Test - Part 2 " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 9. TCM Terminal and Reference Value " .
2. If NG, recheck TCM pin terminals for dam age or loose connection with harness connector.
OK or NG OK >>
INSPECTION END
NG >> Repair or replace damaged parts.
A/T Does Not Shift: D 3→ D 4 INFOID:0000000004305482
SYMPTOM: • A/T does not shift from D 3 to D 4 at the specified speed on “Cruise Test — Part 1” and “Cruise Test
— Part 2”.
• A/T must be warm before D 3
to D 4 shift will occur.
DIAGNOSTIC PROCEDURE Check at Idle " and
AT-58, " Cruise Test - Part 1 " .
Are “ Vehicle Does Not Creep Forward in “ D ” , “ 2 ” or “ 1 ” Position ” and “ Vehicle Cannot Be Started from D OK?
YES >> GO TO 2.
NO >> Go to AT-187, " Vehicle Does Not Creep Forward in "D", "2" or "1" Position " and
AT-188, " Vehicle
Cannot Be Started from D .
CONSULT-III Functi
on (TRANSMISSION) " or
AT-83, " Diagnosis Pro-
cedure without CONSULT-III " .
Is any malfunction detected by self-diagnostic results? YES >> Check the malfuncti
oning system. Refer to AT-79, " CONSULT-III Functi
on (TRANSMISSION) " or
AT-83, " Diagnosis Procedure without CONSULT-III " .
NO >> GO TO 3. Description " (HR16DE),
EC-959, " Component
Description " (MR Type 1) or
EC-1481, " Component Description " (MR Type 2).
OK or NG OK >> GO TO 4.
NG >> Repair or replace accelerator pedal position sensor. Component " .

Inspections Before Trouble Diagnosis " .
OK or NG OK >> GO TO 6.
NG >> GO TO 5. 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-256, " Disassembly " .
4. Check the following items:
- Servo piston assembly
- Brake band
- Torque converter. Refer to AT-256, " Disassembly " .
- Oil pump assembly. Refer to AT-277, " Oil Pump " .
OK or NG OK >> GO TO 7.
NG >> Repair or replace damaged parts. 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. Cruise Test - Part 1 " and
AT-61, " Cruise Test - Part 2 " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 8. TCM Terminal 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 Perform Lock-up INFOID:0000000004305483
SYMPTOM:
A/T does not perform lock-up at the specifi ed speed on “Cruise Test — Part 1”.
DIAGNOSTIC PROCEDURE CONSULT-III Functi
on (TRANSMISSION) " or
AT-83, " Diagnosis Pro-
cedure without CONSULT-III " .