2007 NISSAN LATIO cruise control

AT-130
DTC P0734 A/T 4TH GEAR FUNCTION
Revision: June 20062007 Versa
Diagnostic ProcedureUCS005OS
1. CHECK SHIFT-UP (D3 TO D4 )
During AT- 6 1 , "
Cruise Test — Part 1" .
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to AT-56, "
LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 3.
NG >> GO TO 7.
3. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Shift solenoid valve A
–Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con-
nector terminals and ground. Refer to AT-152, "
Wiring Diagram
— AT — SSV/A" and AT-157, "Wiring Diagram — AT — SSV/B"
.
OK or NG
OK >> GO TO 4.
NG >> Replace solenoid valve assembly.
SCIA7190E
Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve A
F302 - Ground 20 - 30 Ω
Shift solenoid valve B 1 - Ground 5 - 20 Ω
SCIA3594E

DTC P0734 A/T 4TH GEAR FUNCTION
AT-131
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
4. CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Shift solenoid valve A
–Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminals and ground. Refer to
AT-152, "
Wiring Diagram — AT — SSV/A" and AT - 1 5 7 , "Wiring
Diagram — AT — SSV/B" .
OK or NG
OK >> GO TO 5.
NG >> Replace solenoid valve assembly.
5. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-293, "
Control Valve Assembly" .
2. Check to ensure that:
–Valve, sleeve and plug slide along valve bore under their own weight.
–Valve, sleeve and plug are free from burrs, dents and scratches.
–Control valve springs are free from damage, deformation and fatigue.
–Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 6.
NG >> Repair control valve.
6. CHECK SHIFT-UP (D3 TO D4 )
During AT-61, "
Cruise Test — Part 1" .
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> Check control valve again. Repair or replace control
valve assembly.
SCIA3595E
SCIA7190E

AT-132
DTC P0734 A/T 4TH GEAR FUNCTION
Revision: June 20062007 Versa
7. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Line pressure solenoid valves
2. Check resistance between terminal cord assembly harness con-
nector terminal and ground. Refer to AT-146, "
Wiring Diagram
— AT — LPSV" .
OK or NG
OK >> GO TO 8.
NG >> Replace solenoid valve assembly.
8. CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Line pressure solenoid valves
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to AT-
146, "Wiring Diagram — AT — LPSV" .
OK or NG
OK >> GO TO 9.
NG >> Replace solenoid valve assembly.
9. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-293, "
Control Valve Assembly" .
2. Check line pressure circuit valves for sticking.
–Pilot valve
–Shift solenoid valve A
–Shift solenoid valve B
OK or NG
OK >> GO TO 10.
NG >> Repair control valve.
10. CHECK SHIFT-UP (D3 TO D4 )
During AT- 6 1 , "
Cruise Test — Part 1" .
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> Check control valve again. Repair or replace control
valve assembly.
Solenoid valve Connector Terminal Resistance (Approx.)
Line pressure solenoid
valveF30 4 - Ground 2.5 - 5 Ω
SCIA3457E
SCIA3275E
SCIA7190E

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
AT-141
D
E
F
G
H
I
J
K
L
MA
B
AT
Revision: June 20062007 Versa
Diagnostic ProcedureUCS005P6
1. CHECK SHIFT-UP (D3 TO D4 )
During AT-61, "
Cruise Test — Part 1" .
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to AT-56, "
LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 3.
NG >> GO TO 6.
3. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-293, "
Control Valve Assembly" .
2. Check to ensure that:
–Valve, sleeve and plug slide along valve bore under their own weight.
–Valve, sleeve and plug are free from burrs, dents and scratches.
–Control valve springs are free from damage, deformation and fatigue.
–Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve.
4. CHECK SHIFT-UP (D3 TO D4 )
During AT-61, "
Cruise Test — Part 1" .
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 5.
NO >> Check control valve again. Repair or replace control
valve assembly.
5. CHECK DTC
Perform AT-140, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 11. Check for proper lock-up.
SCIA7190E
SCIA7190E

AT-142
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: June 20062007 Versa
6. CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Line pressure solenoid valve
2. Check resistance between terminal cord assembly harness con-
nector terminal and ground. Refer to AT-146, "
Wiring Diagram
— AT — LPSV" .
OK or NG
OK >> GO TO 7.
NG >> Replace solenoid valve assembly.
7. CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
–Line pressure solenoid valve
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to AT-
146, "Wiring Diagram — AT — LPSV" .
OK or NG
OK >> GO TO 8.
NG >> Replace solenoid valve assembly.
8. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-293, "
Control Valve Assembly" .
2. Check line pressure circuit valves for sticking.
–Pressure regulator valve
–Pilot valve
–Pressure modifier valve
OK or NG
OK >> GO TO 9.
NG >> Repair control valve.
9. CHECK SHIFT-UP (D3 TO D4 )
During AT- 6 1 , "
Cruise Test — Part 1" .
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 10.
NO >> Check control valve again. Repair or replace control
valve assembly.
Solenoid valve Connectror Terminal Resistance (Approx.)
Line pressure solenoid
valveF30 4 - Ground 2.5 - 5 Ω
SCIA3457E
SCIA3275E
SCIA7190E

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
AT-143
D
E
F
G
H
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J
K
L
MA
B
AT
Revision: June 20062007 Versa
10. CHECK DTC
Perform AT-140, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 11. Check for proper lock-up.
11 . CHECK LOCK-UP
During AT-61, "
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-242, "
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-135, "
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-242, "
Control Valve Assembly and Accumulators" .
–Torque converter clutch solenoid valve
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to AT-
135, "Wiring Diagram — AT — TCV" .
OK or NG
OK >> GO TO 14.
NG >> Replace solenoid valve assembly.
SCIA7191E
Solenoid valve Connectror Terminal Resistance (Approx.)
Torque converter clutch
solenoid valveF30 5 - Ground 5 - 20 Ω
SCIA2063E
SCIA2066E

AT-144
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: June 20062007 Versa
14. CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-293, "
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- 6 1 , "
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-140, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> Perform “Cruise test — Part 1” again and return to the start point of this test group.
SCIA7191E

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" .