2003 NISSAN X-TRAIL check engine

AT-84
[EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
2.CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
Ye s o r N o
Yes >>GOTO3
No >> Go To "15. Engine Speed Does Not Return To Idle (Light
Braking D
4®D3)”,AT-255, "15. Engine Speed Does
Not Return To Idle (Light Braking D4®D3)". Continue
ROAD TEST.
3.CHECK SHIFT DOWN (D3TO D2)
1. Move selector lever from “D” to “2” position while driving in D
3(O/D OFF).
2. Does A/T shift from D
3(O/D OFF) to 22?
Read gear position.
Ye s o r N o
Yes >>GOTO4
No >> Go To "18. A/T Does Not Shift: D
3®D2, When Selec-
tor Lever “D”®“2” Position”,AT - 2 5 8 , "
18. A/T Does Not
Shift: D3®22, When Selector Lever“D”®“2”Position"
. Continue ROAD TEST.
4.CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
Ye s o r N o
Yes >>GOTO5
No >> Go To "15. Engine Speed Does Not Return To Idle (Light
Braking D
4®D3)”,AT-255, "15. Engine Speed Does
Not Return To Idle (Light Braking D4®D3)". Continue
ROAD TEST.
SAT776BA
SAT791GA
SAT791GA

TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-85
[EURO-OBD]
D
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5.CHECK SHIFT DOWN
1. Move selector lever from “2” to “1” position while driving in 2
2.
2. Does A/T shift from 2
2to 11position?
Read gear position.
Ye s o r N o
Yes >>GOTO6
No >> Go To "19. A/T Does Not Shift: 2
2®11, When Selector
lever “2”®“1” Position”,AT-259, "
19. A/T Does Not
Shift: 22®11, When Selector Lever“2”®“1”Position"
. Continue ROAD TEST.
6.CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
Ye s o r N o
Yes >> 1. Stop vehicle.
2. Perform self-diagnosis.
Except for Euro-OBD: Refer toAT-273, "
SELF-DIAG-
NOSTIC PROCEDURE (WITHOUT CONSULT-II)",
EURO-OBD: Refer toAT - 5 1 , "
TCM SELF-DIAGNOS-
TIC PROCEDURE (NO TOOLS)".
No >> Go To "20. Vehicle Does Not Decelerate By Engine
Brake”,AT-259, "
20. Vehicle Does Not Decelerate By
Engine Brake". Continue ROAD TEST.
SAT778B
SAT778B

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-87
[EURO-OBD]
D
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AT
Transaxle noise in “P” and “N” posi-
tions.ON vehicle1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
2. Line pressure testAT-68, "
Line
Pressure
Te s t"
¬
3. Throttle position sensor (Accelerator
pedal position (App) sensor) AjustmentEC-154, "
DTC P0121 APP
SENSOR"
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-392,
"VEHICLE
SPEED
SENSOR·A/
T(REVO-
LUTION
SENSOR)",
AT-397,
"DTC VEHI-
CLE
SPEED
SENSOR
MTR"
AT-142,
"DTC P0720
VEHICLE
SPEED
SENSOR·A/
T(REVO-
LUTION
SENSOR)",
AT-222,
"DTC VEHI-
CLE SPEED
SENSOR
MTR"
5. Engine speed signalAT-432,"ENGINE
SPEED
SIGNAL"
AT-147,
"DTC P0725
ENGINE
SPEED
SIGNAL"
OFF vehicle6. Oil pumpAT-485, "
Oil
Pump"¬
7. Torque converterAT-465,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬
Vehicle moves when changing into
“P” position, or parking gear does
not disengage when shifted out of
“P” position.
AT- 2 3 4 , "
3. In“P”Position, Vehicle
Moves Forward Or Backward When
Pushed"
ON vehicle 1. Control cable adjustmentAT-456,"Control
Cable
Adjustment"
¬
OFF vehicle 2. Parking componentsAT-461,
"Compo-
nents",AT-
482,
"REPAIR
FOR COM-
PONENT
PA R T S"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

AT-94
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Excessive creep. ON vehicle 1. Engine idling rpm"EC-XX",
“Idle Speed
and Ignition
Timing”¬
No creep at all.
AT-237, "
6. Vehicle Does Not Creep
Backward In“R”Position"andAT-
240, "7. Vehicle Does Not Creep
Forward In“D”,“2”Or“1”Position"
ON vehicle1. Fluid levelAT- 6 4 ,
"FLUID
LEVEL
CHECK"
¬
2. Line pressure testAT- 4 3 6 ,
"LINE
PRES-
SURE
SOLENOID
VA LV E"
¬
3. Control valve assemblyAT- 4 5 4 ,
"Control
Va l v e
Assembly
and Accu-
mulators"
¬
OFF vehicle4. Forward clutchAT- 5 1 2 ,
"Forward
and Overrun
Clutches"
¬
5. Oil pumpAT- 4 8 5 , "
Oil
Pump"¬
6. Torque converterAT- 4 6 5 ,
"Locations
of Adjusting
Shims, Nee-
dle Bear-
ings, Thrust
Washers
and Snap
Rings"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-109
[EURO-OBD]
D
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AT
Kickdown operates or engine over-
runs when depressing pedal in “D
4”
beyond kickdown vehicle speed
limit.ON vehicle1. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-392,
"VEHICLE
SPEED
SENSOR·A/
T(REVO-
LUTION
SENSOR)",
AT-397,
"DTC VEHI-
CLE
SPEED
SENSOR
MTR"
AT-142,
"DTC P0720
VEHICLE
SPEED
SENSOR·A/
T(REVO-
LUTION
SENSOR)",
AT-222,
"DTC VEHI-
CLE SPEED
SENSOR
MTR"
2. Throttle position sensor (Accelerator
pedal position (App) sensor) AdjustmentEC-154, "DTC P0121 APP
SENSOR"
3. Shift solenoid valve AAT-406,"SHIFT
SOLENOID
VA LV E A"
AT-193,
"DTC P0750
SHIFT
SOLENOID
VA LV E A"
4. Shift solenoid valve BAT-406,"SHIFT
SOLENOID
VA LV E A"
AT-198,
"DTC P0755
SHIFT
SOLENOID
VA LV E B"
Races extremely fast or slips in
changing from “D
4”to“D3”when
depressing pedal.ON vehicle1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
2. Throttle position sensor (Accelerator
pedal position (App) sensor) AdjustmentEC-154, "
DTC P0121 APP
SENSOR"
3. Line pressure testAT-68, "
Line
Pressure
Te s t"
¬
4. Line pressure solenoid valveAT-436,
"LINE
PRES-
SURE
SOLENOID
VA LV E"
AT-186,
"DTC P0745
LINE PRES-
SURE
SOLENOID
VA LV E"
5. Control valve assemblyAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬
OFF vehicle6. High clutchAT-507,
"High
Clutch"
¬
7. Forward clutchAT-512,
"Forward
and Overrun
Clutches"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-117
[EURO-OBD]
D
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F
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B
ATLarge shock changing from “12”to
“1
1” in “1” position.ON vehicle 1. Control valve assemblyAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬
OFF vehicle 2. Low & reverse brakeAT-518,
"Low&
Reverse
Brake"
¬
Transmission overheats. ON vehicle1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
2. Engine idling rpm"EC-XX",
“Idle Speed
and Ignition
Timin g”¬
3. Throttle position sensor (Accelerator
pedal position (App) sensor) AdjustmentEC-154, "
DTC P0121 APP
SENSOR"
4. Line pressure testAT-68, "
Line
Pressure
Te s t"
¬
5. Line pressure solenoid valveAT-436,
"LINE
PRES-
SURE
SOLENOID
VA LV E"
AT-186,
"DTC P0745
LINE PRES-
SURE
SOLENOID
VA LV E"
6. Control valve assemblyAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-125
[EURO-OBD]
D
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AT
TCM Terminals and Reference ValueECS004QV
PREPARATION
lMeasure voltage between each terminal and terminal 25 or 48
by following “TCM INSPECTION TABLE”.
A/T does not shift to “D4”whendriv-
ing with overdrive control switch
“ON”.OFF vehicle9. Brake bandAT-530,
"Band
Servo Pis-
ton Assem-
bly"
¬
10. Overrun clutchAT-512,
"Forward
and Overrun
Clutches"
¬
Engine is stopped at “R”, “D”, “2”
and “1” positions.ON vehicle1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
2. Torque converter clutch solenoid valveAT-421,
"TORQUE
CON-
VERTER
CLUTCH
SOLENOID
VA LV E"
AT-181,
"DTC P0740
TORQUE
CON-
VERTER
CLUTCH
SOLENOID
VA LV E"
3. Shift solenoid valve AAT-406,"SHIFT
SOLENOID
VA LV E A"
AT-193,
"DTC P0750
SHIFT
SOLENOID
VA LV E A"
4. Shift solenoid valve BAT-4 11 ,"SHIFT
SOLENOID
VA LV E B"
AT-198,
"DTC P0755
SHIFT
SOLENOID
VA LV E B"
5. Control valve assemblyAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
SAT216J

AT-126
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
SCIA0712E
Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.0V
2P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.5 - 14V
When depressing accelerator pedal
fully after warming up engine.0V
3GY/RTorque converter
clutch solenoid
valveWhen A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
5*2 B/W CAN(H) — — —
6*2 L/R CAN(L) — — —
10 BR/W Power source
orWhen turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.0V
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1”or“D4”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2”or“D3”.)0V
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in “D
1”or“D2”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3”or“D4”.)0V
13 R/LO/D OFF indica-
tor lampWhen setting overdrive control or A/
T check switch in “OFF” position.0V
When setting overdrive control or A/
T check switch in “ON” position.Battery voltage
19 BR/W Power source
orSame as No. 10