2003 NISSAN TEANA Service Manual

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Page 49 of 3502

NISSAN TEANA 2003 Service Manual TROUBLE DIAGNOSIS
AT-41
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A/T Electrical Parts LocationBCS00100
SCIA5685E

Page 50 of 3502

NISSAN TEANA 2003 Service Manual AT-42
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Circuit DiagramBCS00101
TCWM0513E

Page 51 of 3502

NISSAN TEANA 2003 Service Manual TROUBLE DIAGNOSIS
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Inspections Before Trouble DiagnosisBCS00102
A/T FLUID CHECK
Fluid Leakage and Fluid Level Check
Inspect for A/T fluid leakage and check the A/T flu

Page 52 of 3502

NISSAN TEANA 2003 Service Manual AT-44
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6. Accelerate to wide open throttle gradually while applying foot
brake.
7. Quickly note the engine stall revolution and immediately release
throttle.
CAUTION:
Do not hold do

AT-44
TROUBLE DIAGNOSIS

6. Accelerate to wide open throttle gradually while applying foot
brake.
7. Quickly note the engine stall revolution and immediately release
throttle.
CAUTION:
Do not hold down the accelerator pedal for more than 5 sec-
onds during this test.
8. Move selector lever to “N” position.
9. Cool off ATF.
CAUTION:
Run engine at idle for at leas 1 minute.
10. Repeat steps 6 through 9 with selector lever in “3”, “2”, “1” and
“R” positions.
Judgement of Stall Test
The test result and possible damaged components relating to each result are shown in the illustrations on next
page.
In order to pinpoint the possible damaged components, refer to AT- 3 7 , "
Work Flow Chart" .
NOTE:
Stall revolution is too high in “D”, “3”, “2”, or “1” position:
Slippage occurs in 1st gear but not in 2nd and 3rd gears. ..... Low one-way clutch slippage
Slippage occurs in the following gears:
1st through 3rd gears in “D” position and engine brake functions with selector lever set to “3” position.
1st and 2nd gears in “2” position and engine brake functions with accelerator pedal released (fully closed
throttle)...... Forward clutch or forward one-way clutch slippage
Stall revolution is too high in “R” position:
Engine brake does not function in “1” position. ..... Low & reverse brake slippage
Engine brake functions in “1” position. ..... Reverse clutch slippage
Stall revolution within specifications:
Vehicle does not achieve speed of more than 80 km/h (50 MPH). ..... One-way clutch seizure in torque
converter housing
CAUTION:
Be careful since automatic fluid temperature increases abnormally.
Slippage occurs in 3rd and 4th gears in “D” position. ..... High clutch slippage
Slippage occurs in 2nd and 4th gear in “D” position. ..... Brake band slippage
Engine brake does not function in 2nd and 3rd gears in “D” position with 3rd position switch set to ON, 2nd
gear in “2” position, and 1st gear in “1” position. ..... Overrun clutch slippage
Stall revolution less than specifications:
Poor acceleration during starts. ..... One-way clutch seizure in torque converterStall revolution
For QR20DE engine models:
2,400 - 2,850 rpm
For VQ23DE engine models:
2,400 - 2,900 rpm
SAT514G
SCIA5704E

Page 53 of 3502

NISSAN TEANA 2003 Service Manual TROUBLE DIAGNOSIS
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SCIA7714E

Page 54 of 3502

NISSAN TEANA 2003 Service Manual AT-46
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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

Page 55 of 3502

NISSAN TEANA 2003 Service Manual TROUBLE DIAGNOSIS
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5. Start engine and measure line pressure at idle and stall speed.
CAUTION:
Keep the brake pedal pressed all the way down during
measurement.
When

Page 56 of 3502

NISSAN TEANA 2003 Service Manual AT-48
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Road TestBCS00103
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

AT-48
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Road TestBCS00103
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- 4 8
.
2. Check at idle. Refer to AT- 4 8
.
3. Cruise test
Inspection all the item from Part 1 to Part 3. Refer to AT- 5 0 , AT- 5 1 and AT- 5 2 .
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 the following.
Refer to AT- 6 7 , "
CONSULT-II Function (A/T)" , AT- 7 6 , "Diagnostic Procedure Without CONSULT-II" and
AT- 1 6 8 , "
TROUBLE DIAGNOSIS FOR SYMPTOMS" .
Check Before Engine Is StartedBCS00104
1. CHECK A/T CHECK 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 A/T CHECK 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- 6 9 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 7 6 , "Diagnostic Procedure Without
CONSULT-II" .
3. Go to AT- 4 8 , "
Check at Idle" .
NO >> Stop “Road Test”. Go to AT- 1 7 3 , "
A/T CHECK Indicator Lamp Does Not Come On" .
Check at IdleBCS00105
1. CHECK ENGINE START
1. Park vehicle on flat surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Turn ignition switch to “START” position.
Is engine started?
YES >> GO TO 2.
NO >>
Stop “Road Test”. Mark the box on the AT- 3 8 , "DIAGNOSTIC WORKSHEET" .
Go to AT- 1 7 5 , "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”, “3”, “2” or “1” position.
3. Turn ignition switch to “START” position.
Is engine started?
YES >>Stop “Road Test”. Mark the box on the AT- 3 8 , "DIAGNOSTIC WORKSHEET" .
Go to AT- 1 7 5 , "Engine Cannot Be Started in “P” and “N” Position" .
NO >> GO TO 3.

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