diagram NISSAN LATIO 2009 Service User Guide

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3. Check continuity between TCM connector terminals and revolu-
tion sensor harness connector terminal. Refer to AT-50, " Circuit
Diagram " and
AT-169, " Wiring Diagram - AT - MAIN " .
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG OK >> 10A fuse (No.49, located in the IPDM
E/R) or ignition switch are malfunctioning.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 5. Item Connector Terminal Continuity
TCM E31 10 Yes
Revolution sensor F38 1
TCM E31 19 Yes
Revolution sensor F38 1

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Wiring Diagram - AT - ENGSS
INFOID:0000000004305366
TCM TERMINALS AND REFERENCE VALUES Refer to AT-77, " TCM Terminal and Reference Value " .

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5. Accelerate vehicle to 20 to 25 km/h (12 to 16 MPH) under the following conditions and release the accel-
erator pedal completely.
THROTTLE POSI: Less th an 1.0/8 (at all times during step 4)
SLCT LVR POSI: “D” position
- Make sure that “GEAR” shows “2” after releasing pedal.
6. Depress accelerator pedal to WOT (more than 7.0/ 8 of “THROTTLE POSI”) quickly from a speed of 20 to
25 km/h (12 to 16 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETED”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to AT-111, " Diagnosis Procedure " .
If “STOP VEHICLE” appears on CONSULT-III screen, go to the following step.
- Make sure that “GEAR” shows “1” when depressing accelerator pedal to WOT.
- If “TESTING” does not appear on CONSULT-III fo r a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC other than “P0731 A/T 1ST GR FNCTN” is shown, refer to AT-79," CONSULT-III Function (TRANSMISSION) " .
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is disp layed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-111, " Diagnosis Procedure " .
Refer to AT-64, " Vehicle Speed at Which Gear Shifting Occurs " .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis Procedure INFOID:0000000004305372Control 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-140, " Wiring Diagram -
AT - SSV/A " and
AT-145, " Wiring Diagram - AT - SSV/B " .
OK or NG OK >> GO TO 2.
NG >> Repair or replace damaged parts. Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve A F302 - Ground 20 - 30
Ω
Shift solenoid valve B 1 - Ground 5 - 20 Ω

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-140, " Wiring Diagram - AT - SSV/A " and
AT-145, " Wiring Dia-
gram - AT - SSV/B " .
OK or NG OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly. 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 assembly. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> Check control valve again. If NG, repair or replace control valve assembly.

Diagnosis Procedure " .
If “STOP VEHICLE” appears on CONSUL T-III screen, go to following step.
- Make sure that “GEAR” shows “2” wh en depressing accelerator pedal to WOT.
- If “TESTING” does not appear on CONSULT-III fo r a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC other than “P0732 A/T 2ND GR FNCTN” is shown, refer to AT-79," CONSULT-III Function (TRANSMISSION) " .
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-114, " Diagnosis Procedure " .
Refer to AT-64, " Vehicle Speed at Which Gear Shifting Occurs " .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis Procedure INFOID:0000000004305377Control Valve Assembly and Accumulators " .
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con- nector terminal and ground. Refer to AT-145, " Wiring Diagram -
AT - SSV/B " .
OK or NG OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly. Control Valve Assembly and Accumulators " .
- Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal and ground. Refer to AT-145, " Wiring Diagram - AT - SSV/B " .
OK or NG OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly. Control Valve Assembly " .
2. Check to ensure that:
- Valve, sleeve and plug slide along valve bore under their own weight. Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1
→ 2 → 3 → 4
No malfunction exists 1 → 2 → 3 → 4
Malfunction for “A/T 2ND GR FNCTN” exists. 4 → 3 → 3 → 4 Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve B F30 1 - Ground 5 - 20 Ω SCIA2058E

DTC P0733 A/T 3RD GEAR FUNCTION
AT-117
< SERVICE INFORMATION >
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Make sure that “GEAR” shows “4” after releasing pedal.
6. Depress accelerator pedal steadily with 3.5/8 - 4.5/ 8 of “THROTTLE POSI” from a speed of 60 to 75 km/h
(37 to 47 MPH) until “TESTING” changes to “STOP VE HICLE” or “COMPLETED”. (It will take approxi-
mately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to AT-117, " Diagnosis Procedure " .
If “STOP VEHICLE” appears on CONSULT-III screen, go to following step.
- Make sure that “GEAR” shows “3” when depr essing accelerator pedal with 3.5/8 - 4.5/8 of
“THROTTLE POSI”.
- If “TESTING” does not appear on CONSULT-III fo r a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC ot her than “P0733 A/T 3RD GR FNCTN” is shown, refer to AT-79," CONSULT-III Function (TRANSMISSION) " .
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is disp layed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-117, " Diagnosis Procedure " .
Refer to AT-64, " Vehicle Speed at Which Gear Shifting Occurs " .
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis Procedure INFOID:00000000043053821.
CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-221, " 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-140, " Wiring Diagram -
AT - SSV/A " and
AT-145, " Wiring Diagram - AT - SSV/B " .
OK or NG OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly. 2.
CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-221, " Control Valve Assembly and Accumulators " .
- Shift solenoid valve A
- Shift solenoid valve B Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1
→ 2 → 3 → 4
No malfunction exists. 1 → 2 → 3 → 4
Malfunction for “A/T 3 RD GR FNCTN” exists. 1 → 1 → 4 → 4 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

AT-118< SERVICE INFORMATION >
DTC P0733 A/T 3RD GEAR FUNCTION
2. Check solenoid valve by listening for its operating sound while applying battery voltage to the terminals and ground. Refer to
AT-140, " Wiring Diagram - AT - SSV/A " and
AT-145, " Wiring Dia-
gram - AT - SSV/B " .
OK or NG OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly. 3.
CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-280, " 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 assembly. 4.
CHECK DTC
Perform AT-116, " DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> Check control valve again. If NG, repair or replace control valve assembly. SCIA3595E

DTC P0734 A/T 4TH GEAR FUNCTION
AT-121
< SERVICE INFORMATION >
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CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-221, " 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-140, " Wiring Diagram -
AT - SSV/A " and
AT-145, " Wiring Diagram - AT - SSV/B " .
OK or NG OK >> GO TO 4.
NG >> Replace solenoid valve assembly. 4.
CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-221, " 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-140, " Wiring Diagram - AT - SSV/A " and
AT-145, " Wiring Dia-
gram - 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-280, " Control Valve Assembly " .
2. Check to ensure that: 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
SCIA3595E

AT-122< SERVICE INFORMATION >
DTC P0734 A/T 4TH GEAR FUNCTION
- 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 (D 3 TO D 4)
During AT-58, " Cruise Test - Part 1 " .
Does A/T shift from D 3 to D 4 at the specified speed?
YES >> GO TO 11.
NO >> Check control valve again. Repair or replace control
valve assembly. 7.
CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-221, " 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-135, " 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-221, " 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-135, " 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-280, " 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. SCIA7190E
Solenoid valve Connector Terminal Resistance (Approx.)
Line pressure solenoid
valve F30 4 - Ground 2.5 - 5
Ω SCIA3457E
SCIA3275E

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Wiring Diagram - AT - TCV
INFOID:0000000004305394
TCM TERMINALS AND REFERENCE VALUES Refer to AT-77, " TCM Terminal and Reference Value " .