check engine NISSAN LATIO 2007 Service User Guide

TROUBLE DIAGNOSIS
AT-49
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4. 4-3. “Cruise Test”AT-6 1
Part 1
❏ AT-206, "
Vehicle Cannot Be Started from D1" .
❏ AT-208, "
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2" .
❏ AT-210, "
A/T Does Not Shift: D2 → D3" .
❏ AT-212, "
A/T Does Not Shift: D3 → D4" .
❏ AT-214, "
A/T Does Not Perform Lock-up" .
❏ AT-215, "
A/T Does Not Hold Lock-up Condition" .
❏ AT-216, "
Lock-up Is Not Released" .
❏ AT-217, "
Engine Speed Does Not Return to Idle (Light Braking D4 → D3 )" .
Part 2AT-6 4
❏ AT-206, "Vehicle Cannot Be Started from D1" .
❏ AT-208, "
A/T Does Not Shift: D1 → D2 or Does Not Kickdown: D4 → D2" .
❏ AT-210, "
A/T Does Not Shift: D2 → D3" .
❏ AT-212, "
A/T Does Not Shift: D3 → D4" .
Part 3AT-6 5
❏ AT-218, "A/T Does Not Shift: D4 → D3 , When OD OFF" .
❏ AT-219, "
A/T Does Not Shift: D3 → 22 , When Selector Lever “D” → “2” Position" .
❏ AT-221, "
A/T Does Not Shift: 22 → 11 , When Selector Lever “2” → “1” Position" .
❏ AT-223, "
Vehicle Does Not Decelerate by Engine Brake" .
❏ Perform self-diagnosis. Enter checks for detected items. AT-8 2
, AT-9 0 .
❏ AT - 9 4 , "
DTC U1000 CAN COMMUNICATION LINE" .
❏ AT - 9 7 , "
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH" .
❏ AT-102, "
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" .
❏ AT-107, "
DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" .
❏ AT - 11 3 , "
DTC P0725 ENGINE SPEED SIGNAL" .
❏ AT - 11 7 , "
DTC P0731 A/T 1ST GEAR FUNCTION"
❏ AT-121, "DTC P0732 A/T 2ND GEAR FUNCTION" .
❏ AT-124, "
DTC P0733 A/T 3RD GEAR FUNCTION" .
❏ AT-128, "
DTC P0734 A/T 4TH GEAR FUNCTION" .
❏ AT-134, "
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE" .
❏ AT-139, "
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)" .
❏ AT-145, "
DTC P0745 LINE PRESSURE SOLENOID VALVE" .
❏ AT-151, "
DTC P0750 SHIFT SOLENOID VALVE A" .
❏ AT-156, "
DTC P0755 SHIFT SOLENOID VALVE B" .
❏ AT-161, "
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE" .
❏ AT-166, "
DTC VEHICLE SPEED SENSOR MTR" .
❏ AT-170, "
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)" .
❏ AT-176, "
DTC TURBINE REVOLUTION SENSOR" .
❏ AT-182, "
CONTROL UNIT (RAM), CONTROL UNIT (ROM)" .
❏ AT-183, "
MAIN POWER SUPPLY AND GROUND CIRCUIT" .
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT-8 2
,
AT-9 1
6.❏ Perform “Road Test”.AT-5 8
7.❏ Perform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged parts.
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible
symptoms and the component inspection orders.)AT-6 8
8.❏ Erase DTC from TCM and ECM memories.AT-8 3,
AT-9 3

TROUBLE DIAGNOSIS
AT-53
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Inspections Before Trouble DiagnosisUCS005MQ
A/T FLUID CHECK
Fluid Leakage and Fluid Level Check
Check fluid leakage and check the fluid level. Refer to AT-16, "Checking A/T Fluid" .
Fluid Condition Check
Check the A/T fluid condition.
STALL TEST
Stall Test Procedure
1. Check ATF and engine oil levels. If necessary, add ATF and
engine oil.
2. Drive vehicle for approximately 10 minutes or until ATF and
engine oil reach operating temperature.
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.

It is good practice to mark the point of specified engine
rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in “D”
position.
Fluid status Conceivable Cause Required Operation
Varnished (viscous
varnish state)Clutch, brake
scorchedReplace the ATF and check the A/T
main unit and the vehicle for mal-
functions (wire harnesses, cooler
pipes, etc.)
Milky white or
cloudyWater in the ATFReplace the ATF and check for
places where water is getting in.
Large amount of
metal powder mixed
inUnusual wear of
sliding parts within
A/TReplace the ATF and check for
improper operation of the A/T.
SAT6 3 8A
ATF operating temperature: 50 - 80°C (122 - 176°F)
SAT6 4 7B
SAT5 1 3G
SAT7 7 5B

AT-56
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
LINE PRESSURE TEST
Line Pressure Test Ports
Location of line pressure test ports are shown in the figure.

Always replace pressure plugs as they are self-sealing
bolts.
Line Pressure Test Procedure
1. Check ATF and engine oil levels. If necessary, add ATF or
engine oil.
2. Drive vehicle for approx. 10 minutes or until engine oil and ATF
reach operating temperature.
3. Install oil pressure gauge to corresponding line pressure test
port.
4. Set parking brake and block wheels.
SCIA7187E
ATF operating temperature: 50 - 80°C (122 -176°F)
SAT6 4 7B
SCIA6528J
SAT5 1 3G

AT-58
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
Road TestUCS005MR
DESCRIPTION

The purpose of the test is to determine overall performance of A/
T and analyze causes of malfunctions.

The road test consists of the following three parts:
1. Check before engine is started. Refer to AT- 5 8
.
2. Check at idle. Refer to AT- 5 9
.
3. Cruise test

Inspection all the item from Part 1 to Part 3. Refer to AT - 6 1 ,
AT- 6 4
and AT- 6 5 .

Before road test, familiarize yourself with all test procedures and
items to check.

Perform tests on all items until specified symptom is found.
Troubleshoot the items which are checked out to be no good
after road test. Refer to AT-80, "
CONSULT-II Function (A/T)" ,
AT- 9 0 , "
Diagnostic Procedure Without CONSULT-II" and AT-
193, "TROUBLE DIAGNOSIS FOR SYMPTOMS" .
Check Before Engine is StartedUCS005MS
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.
4. Turn ignition switch ON. (Do not start engine.)
Does OD OFF indicator lamp come on for about 2 seconds?
YES >> 1. Turn ignition switch OFF.
2. Perform self-diagnosis and note NG items.
Refer to AT- 8 2 , "
SELF-DIAGNOSTIC RESULT
MODE" , AT - 9 0 , "Diagnostic Procedure Without CON-
SULT-II" .
3. Go to AT- 5 9 , "
Check at Idle" .
NO >> Stop “Road Test”. Go to AT-198, "
OD OFF Indicator
Lamp Does Not Come On" .
SAT7 8 6A
SAT4 9 6G
SAT7 7 2B
SCIA7140E

TROUBLE DIAGNOSIS
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Check at IdleUCS005M T
1. CHECK ENGINE START
1. Park vehicle on flat surface.
2. Turn ignition switch ON. (Do not start engine.)
3. Move selector lever to “P” or “N” position.
4. Turn ignition switch to “START” position.
Is engine started?
YES >> GO TO 2.
NO >>

Stop “Road Test”. Mark the box on the AT-47, "DIAG-
NOSTIC WORKSHEET" .

Go to AT-200, "Engine Cannot Be Started in “P” and
“N” Position" .
2. CHECK ENGINE START
1. Turn ignition switch ON. (Do not start engine.)
2. Move selector lever to “R”, “D”, “2” or “1” position.
3. Turn ignition switch to “START” position.
Is engine started?
YES >>
Stop “Road Test”. Mark the box on the AT-47, "DIAG-
NOSTIC WORKSHEET" .

Go to AT-200, "Engine Cannot Be Started in “P” and
“N” Position" .

Continue “Road Test”.
NO >> GO TO 3.
3. CHECK VEHICLE MOVE
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release parking brake.
4. Push vehicle forward or backward.
Does vehicle move when it is pushed forward or backyard?
YES >>
Mark the box on the AT-47, "DIAGNOSTIC WORK-
SHEET" .

Go to AT-201, "In “P” Position, Vehicle Moves For-
ward or Backward When Pushed" .

Continue “Road Test”.
NO >> GO TO 4.
SAT7 6 9B
SAT7 7 0B
SAT7 6 8B
SAT7 9 6A

AT-60
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
4. CHECK VEHICLE MOVE
1. Apply parking brake.
2. Start engine.
3. Move selector lever to “N” position.
4. Release parking brake.
Does vehicle move forward or backward?
YES >>
Mark the box on the AT - 4 7 , "DIAGNOSTIC WORK-
SHEET" .

Go to AT- 2 0 1 , "In “N” Position, Vehicle Moves" .

Continue “Road Test”.
NO >> GO TO 5.
5. CHECK SHIFT SHOCK
1. Apply foot brake.
2. Move selector lever to “R” position.
Is there large shock when changing from
“N” to “R” position?
YES >>
Mark the box on the AT - 4 7 , "DIAGNOSTIC WORK-
SHEET" .

Go to AT- 2 0 2 , "Large Shock “N” → “R” Position" .

Continue “Road Test”.
NO >> GO TO 6.
6. CHECK VEHICLE MOVE
Release foot brake for several seconds.
Does vehicle creep backward when foot brake is released?
YES >> GO TO 7.
NO >>

Mark the box on the AT - 4 7 , "DIAGNOSTIC WORK-
SHEET" .

Go to AT-203, "Vehicle Does Not Creep Backward in
“R” Position" .

Continue “Road Test”.
SAT7 7 1B
SAT7 9 7A
SAT7 7 2B
SAT7 9 9A

TROUBLE DIAGNOSIS
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7. CHECK VEHICLE MOVE
Move selector lever to “D”, “2” and “1” positions and check if vehicle
creeps forward.
Does vehicle creep forward in all three positions?
YES >> Go to AT- 6 1 , "Cruise Test — Part 1" .
NO >>

Mark the box on the AT-47, "DIAGNOSTIC WORK-
SHEET" .

Go to AT-205, "Vehicle Does Not Creep Forward in
“D”, “2” or “1” Position" .

Continue “Road Test”.
Cruise Test — Part 1UCS005M U
1. CHECK STARTING GEAR (D1 ) POSITION
1. Drive vehicle for approximately 10 minutes to warm engine oil and ATF up to operating temperature.
2. Park vehicle on flat surface.
3. Push overdrive control switch. (OD OFF indicator lamp is off.)
4. Move selector lever to “P” position.
5. Start engine.
6. Move selector lever to “D” position.
7. Accelerate vehicle by constantly depressing accelerator pedal
half-way.
Read gear position. Refer to AT- 8 4 , "
DATA MONITOR
MODE" .
Does vehicle start from D
1 ?
YES >> GO TO 2.
NO >>

Mark the box on the AT-47, "DIAGNOSTIC WORK-
SHEET" .

Go to AT-206, "Vehicle Cannot Be Started from D1" .

Continue “Road Test”.
SAT7 7 3B
ATF operating temperature: 50 - 80°C (122 - 176°F)
SCIA5472E
SAT7 7 5B
SAT4 9 5G

TROUBLE DIAGNOSIS
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5. CHECK LOCK-UP (D4 TO D4 L/U)
Check lock-up (D
4 to D4 L/U).
Specified speed when lock-up occurs. Refer to AT-67, "
Vehicle Speed at Which Lock-up Occurs/Releases" .
Read vehicle speed, throttle opening when lock-up duty
becomes 94%. Refer to AT- 8 4 , "
DATA MONITOR MODE" .
Does A/T perform lock-up at the specified speed?
YES >> GO TO 6.
NO >>

Mark the box on the AT-47, "DIAGNOSTIC WORK-
SHEET" .

Go to AT-214, "A/T Does Not Perform Lock-up" .

Continue “Road Test”.
6. CHECK LOCK-UP HOLD
Check lock-up hold.
When lock-up duty becomes 94%. Refer to AT-84, "
DATA MONITOR MODE" .
Does A/T hold lock-up condition for more than 30 seconds?
YES >> GO TO 7.
NO >>

Mark the box on the AT - 4 7 , "DIAGNOSTIC WORKSHEET" .

Go to AT-215, "A/T Does Not Hold Lock-up Condition" .

Continue “Road Test”.
7. CHECK SHIFT-DOWN (D4 L/U TO D4 )
Release accelerator pedal.
When lock-up duty becomes 4%. Refer to AT-8 4, "
DATA MONITOR MODE" .
Is lock-up released when accelerator pedal is released?
YES >> GO TO 8.
NO >>

Mark the box on the AT - 4 7 , "DIAGNOSTIC WORKSHEET" .

Go to AT-216, "Lock-up Is Not Released" .

Continue “Road Test”.
8. CHECK SHIFT-DOWN (D4 TO D3 )
Decelerate vehicle by applying foot brake lightly.
Read gear position and engine speed. Refer to AT- 8 4 , "
DATA
MONITOR MODE" .
Does engine speed return to idle smoothly when A/T is shifted from
D4 to D3 ?
YES >> 1. Stop vehicle.
2. Go to AT- 6 4 , "
Cruise Test — Part 2" .
NO >>

Mark the box on the AT-47, "DIAGNOSTIC WORK-
SHEET" .

Go to AT-217, "Engine Speed Does Not Return to Idle
(Light Braking D4 → D3 )" .

Continue “Road Test”.
SCIA7191E
SAT9 5 9I

TROUBLE DIAGNOSIS
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4. CHECK SHIFT-UP (D3 TO D4 ) AND ENGINE BRAKE
Release accelerator pedal after shifting from D
2 to D3 .
Read gear position, throttle opening and vehicle speed.
Refer to AT-8 4, "
DATA MONITOR MODE" .
Does A/T shift from D
3 to D4 and does vehicle decelerate by engine
brake?
YES >> 1. Stop vehicle.
2. Go to AT- 6 5 , "
Cruise Test — Part 3" .
NO >>

Mark the box on the AT-47, "DIAGNOSTIC WORK-
SHEET" .

Go to AT-212, "A/T Does Not Shift: D3 → D4" .

Continue “Road Test”.
Cruise Test — Part 3UCS005MW
1. CHECK SHIFT-DOWN (D4 TO D3 )
1. Push overdrive control switch. (OD OFF indicator lamp is off.)
2. Move selector lever to “D” position.
3. Accelerate vehicle using half throttle to D
4 .
4. Release accelerator pedal.
5. Push overdrive control switch. (OD OFF indicator lamp is on.)
Read gear position and vehicle speed. Refer to AT- 8 4 ,
"DATA MONITOR MODE" .
Does A/T shift from D
4 to D3 (OD OFF)?
YES >> GO TO 2.
NO >>

Mark the box on the AT-47, "DIAGNOSTIC WORK-
SHEET" .

Go to AT-218, "A/T Does Not Shift: D4 → D3 , When
OD OFF" .

Continue “Road Test”.
SAT4 0 5H
SAT8 1 2A
SAT8 1 3A
SCIA5469E

AT-66
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
2. CHECK ENGINE BRAKE
Check engine brake.
Does vehicle decelerate by engine brake?
YES >> GO TO 3.
NO >>

Mark the box on the AT - 4 7 , "DIAGNOSTIC WORK-
SHEET" .

Go to AT-223, "Vehicle Does Not Decelerate by
Engine Brake" .

Continue “Road Test”.
3. CHECK SHIFT-DOWN (D3 TO 22 )
Move selector lever from “D” to “2” position while driving in D
3 (OD
OFF).
Read gear position. Refer to AT-84, "
DATA MONITOR MODE"
.
Does A/T shift from D
3 (OD OFF) to 22 ?
YES >> GO TO 4.
NO >>

Mark the box on the AT - 4 7 , "DIAGNOSTIC WORK-
SHEET" .

Go to AT-219, "A/T Does Not Shift: D3 → 22 , When
Selector Lever “D” → “2” Position" .

Continue “Road Test”.
4. CHECK ENGINE BRAKE
Check engine brake.
Does vehicle decelerate by engine brake?
YES >> GO TO 5.
NO >>

Mark the box on the AT - 4 7 , "DIAGNOSTIC WORK-
SHEET" .

Go to AT-223, "Vehicle Does Not Decelerate by
Engine Brake" .

Continue “Road Test”.
5. CHECK SHIFT-DOWN (22 TO 11 )
Move selector lever from “2” to “1” position while driving in 2
2 .
Read gear position. Refer to AT-84, "
DATA MONITOR MODE"
.
Does A/T shift from 2
2 to 11 position?
YES >> GO TO 6.
NO >>

Mark the box on the AT - 4 7 , "DIAGNOSTIC WORK-
SHEET" .

Go to AT- 2 2 1 , "A/T Does Not Shift: 22 → 11 , When
Selector Lever “2” → “1” Position" .

Continue “Road Test”.
SCIA5469E
SAT7 9 1GA
SAT7 9 1GA
SAT7 7 8B