2003 NISSAN X-TRAIL engine

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-277
[EXC.F/EURO-OBD]
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6th judgement flicker is longer than others.
Overrun clutch solenoid valve circuit is short-circuited or discon-
nected.

Go to OVERRUN CLUTCH SOLENOID VALVE.
Refer toAT-416, "
OVERRUN CLUTCH SOLENOID VALVE"
7th judgement flicker is longer than others.
Torque converter clutch solenoid valve circuit is short-circuited or
disconnected.

Go to TORQUE CONVERTER CLUTCH SOLENOID VALVE.
Refer toAT- 4 2 1 , "
TORQUE CONVERTER CLUTCH SOLENOID
VA LV E"
8th judgement flicker is longer than others.
A/T fluid temperature sensor is disconnected or TCM power
source circuit is damaged.

Go to BATT/FLUID TEMP SEN(A/T FLUID TEMP SENSOR
CIRCUIT AND TCM POWER SOURCE).
Refer toAT-426, "
BATT/FLUID TEMP SEN (A/T FLUID TEMP
SENSOR CIRCUIT AND TCM POWER SOURCE)"
9th judgement flicker is longer than others.
Engine speed signal circuit is short-circuited or disconnected.

Go to ENGINE SPEED SIGNAL.
Refer toAT- 4 3 2 , "
ENGINE SPEED SIGNAL"
O/D OFF indicator lamp:
SCIA0700ESCIA0701E
SCIA0702ESCIA0703E

TROUBLE DIAGNOSIS — INTRODUCTION
AT-279
[EXC.F/EURO-OBD]
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TROUBLE DIAGNOSIS — INTRODUCTIONPFP:00000
IntroductionECS004TF
The TCM receives a signal from the vehicle speed sensor, throttle
position sensor or PNP switch and provides shift control or lock-up
control via A/T solenoid valves.
Input and output signals must always be correct and stable in the
operation of the A/T system. The A/T system must be in good oper-
ating condition and be free of valve seizure, solenoid valve malfunc-
tion, etc.
It is much more difficult to diagnose a problem that occurs intermit-
tently rather than continuously. Most intermittent problems are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only, may not find the cause of the problems. A road
test with CONSULT-II or a circuit tester connected should be per-
formed. Follow the “Work Flow”. Refer toAT-284, "
Work Flow".
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such problems, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “Diagnostic Worksheet” like the exam-
ple (AT-280, "
DIAGNOSTIC WORKSHEET") should be used.
Start your diagnosis by looking for “conventional” problems first. This
will help troubleshoot driveability problems on an electronically con-
trolled engine vehicle.
Also check related Service bulletins for information.
SAT631IA
SAT632I
SEF234G

AT-280
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
DIAGNOSTIC WORKSHEET
Information from Customer
KEY POINTS
lWHAT..... Vehicle & A/T model
lWHEN..... Date, Frequencies
lWHERE..... Road conditions
lHOW..... Operating conditions, Symptoms
Customer name MR/MS Model & Year VIN
Trans. model Engine Mileage
Incident Date Manuf. Date In Service Date
FrequencyoContinuousoIntermittent ( times a day)
SymptomsoVehicle does not move. (oAny positionoParticular position)
oNo up-shift (o1st®2ndo2nd®3rdo3rd®O/D)
oNo down-shift (oO/D®3rdo3rd®2ndo2nd®1st)
oLockup malfunction
oShift point too high or too low.
oShift shock or slip (oN®DoLockupoAny drive position)
oNoise or vibration
oNo kickdown
oNo pattern select
oOthers
()
O/D OFF indicator lamp Blinks for about 8 seconds.
oContinuously litoNot lit

TROUBLE DIAGNOSIS — INTRODUCTION
AT-281
[EXC.F/EURO-OBD]
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Diagnostic Worksheet
1.oRead the Fail-safe and listen to customer complaints.AT- 8 , "Wiring
Diagrams
and Trouble
Diagnosis",
AT- 2 8 0 ,
"DIAGNOS-
TIC WORK-
SHEET"
2.oCHECK A/T FLUIDAT- 2 8 6 , "A/T
Fluid Check"oLeakage (Follow specified procedure)
oFluid condition
oFluid level
3.oPerform STALL TEST and LINE PRESSURE TEST.AT- 2 8 7 , "
St a l l
Te s t",AT-
290, "Line
Pressure
Te s t"
oStall test — Mark possible damaged components/others.
oTorque converter one-way clutch
oReverse clutch
oForward clutch
oOverrun clutch
oForward one-way clutchoLow & reverse brake
oLow one-way clutch
oEngine
oLine pressure is low
oClutches and brakes except high clutch and
brake band are OK
oLine Pressure test — Suspected parts:

AT-282
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
4.oPerform all ROAD TEST and mark required procedures.AT-291,
"Road Test"
4-
1.Check before engine is started.AT-292, "1.
CHECK
BEFORE
ENGINE IS
STARTED"
oSELF-DIAGNOSTIC CONFIRMATION PROCEDURE — Mark detected items.
oVehicle speed sensor·A/T (Revolution sensor),AT-392, "
VEHICLE SPEED SENSOR·A/T (REVO-
LUTION SENSOR)".
oVehicle speed sensor·MTR,AT- 3 9 7 , "
DTC VEHICLE SPEED SENSOR MTR".
oAccelerator pedal position (App) sensor,AT-401, "
ACCELE RATOR PEDAL POSITION (APP)
SENSOR".
oShift solenoid valve A,AT-406, "
SHIFT SOLENOID VALVE A".
oShift solenoid valve B,AT-4 11 , "
SHIFT SOLENOID VALVE B".
oOverrun clutch solenoid valve,AT-416, "
OVERRUNCLUTCHSOLENOIDVALVE".
oTorque converter clutch solenoid valve,AT- 4 2 1 , "
TORQUE CONVERTER CLUTCH SOLENOID
VA LV E".
oA/T fluid temperature sensor and TCM power source,AT-426, "
BATT/FLUID TEMP SEN (A/T
FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)".
oEngine speed signal,AT-432, "
ENGINE SPEED SIGNAL".
oLine pressure solenoid valve,AT- 4 3 6 , "
LINE PRESSURE SOLENOID VALVE".
oCAN communication line,AT-4 4 3 , "
CAN CAMMUNICATION LINE".
oControl unit (RAM), control unit (ROM),AT- 2 2 6 , "
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM)".
oControl unit (EEP ROM),AT-228, "
DTC CONTROL UNIT(EEPROM)".
oPNP & overdrive control switches, and throttle position sensor,AT- 3 8 2 , "
21. TCM Self-diagnosis
Does Not Activate (PNP & Overdrive Control Switches, and Throttle Position Sensor Circuit Checks)"
.
oBattery
oOthers
4-
2.Check at idleAT-293, "
2.
CHECK AT
IDLE"o1. O/D OFF Indicator Lamp Does Not Come On,AT-354, "1. O/D OFF Indicator Lamp Does Not Come
On".
o2. Engine Cannot Be Started In “P” And “N” Position,AT- 3 5 5 , "
2. Engine Cannot Be Started In“P”and“N”
Position".
o3. In “P” Position, Vehicle Moves Forward Or Backward When Pushed,AT- 3 5 6 , "
3. In“P”Position, Vehi-
cle Moves Forward Or Backward When Pushed".
o4. In “N” Position, Vehicle Moves,AT- 3 5 6 , "
4. In“N”Position, Vehicle Moves".
o5. Large Shock. “N”®“R” Position,AT-358, "
5. Large Shock.“N”®“R”Position".
o6. Vehicle Does Not Creep Backward In “R” Position,AT- 3 5 9 , "
6. Vehicle Does Not Creep Backward In
“R”Position".
o7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position,AT- 3 6 2 , "
7. Vehicle Does Not Creep For-
ward In“D”,“2”Or“1”Position".

TROUBLE DIAGNOSIS — INTRODUCTION
AT-283
[EXC.F/EURO-OBD]
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4. 4-
3.Cruise testAT- 2 9 6 , "3.
CRUISE
TEST"
AT- 3 0 0 ,
"Cruise Test
—Part 1"
Part-1
o8. Vehicle Cannot Be Started From D
1,AT- 3 6 4 , "8. Vehicle Cannot Be Started From D1".
o9. A/T Does Not Shift: D
1®D2Or Does Not Kickdown: D4®D2,AT- 3 6 6 , "9. A/T Does Not Shift: D1
®D2Or Does Not Kickdown: D4®D2".
o10. A/T Does Not Shift: D
2®D3,AT-368, "10. A/T Does Not Shift: D2®D3".
o11. A/T Does Not Shift: D
3®D4,AT-371, "11.A/TDoesNotShift:D3®D4".
o12. A/T Does Not Perform Lock-up,AT- 3 7 4 , "
12. A/T Does Not Perform Lock-up".
o13. A/T Does Not Hold Lock-up Condition,AT- 3 7 5 , "
13. A/T Does Not Hold Lock-up Condition".
o14. Lock-up Is Not Released,AT- 3 7 6 , "
14. Lock-up Is Not Released".
o15. Engine Speed Does Not Return To Idle (Light Braking D
4®D3),AT-377, "15. Engine Speed Does
Not Return To Idle (Light Braking D4®D3)".
Part-2AT- 3 0 3 ,
"Cruise Test
—Part 2"o16. Vehicle Does Not Start From D1,AT- 3 7 9 , "16. Vehicle Does Not Start From D1".
o9. A/T Does Not Shift: D
1®D2Or Does Not Kickdown: D4®D2,AT- 3 6 6 , "9. A/T Does Not Shift: D1
®D2Or Does Not Kickdown: D4®D2".
o10. A/T Does Not Shift: D
2®D3,AT-368, "10. A/T Does Not Shift: D2®D3".
o11. A/T Does Not Shift: D
3®D4,AT-371, "11.A/TDoesNotShift:D3®D4".
Part-3AT- 3 0 5 ,
"Cruise Test
—Part 3"o17.A/TDoesNotShift:D4®D3When Overdrive Control Switch “ON”®“OFF”,AT-380, "17. A/T Does
Not Shift: D4®D3, When Overdrive Control Switch“ON”®“OFF”".
o15. Engine Speed Does Not Return To Idle (Engine Brake In D
3),AT-377, "15. Engine Speed Does Not
Return To Idle (Light Braking D4®D3)".
o18. A/T Does Not Shift: D
3®22, When Selector Lever “D”®“2” Position,AT-380, "18. A/T Does Not
Shift: D3®22, When Selector Lever“D”®“2”Position".
o15. Engine Speed Does Not Return To Idle (Engine Brake In 2
2),AT- 3 7 7 , "15. Engine Speed Does Not
Return To Idle (Light Braking D4®D3)".
o19. A/T Does Not Shift: 2
2®11, When Selector Lever “2”®“1” Position,AT-381, "19. A/T Does Not
Shift: 22®11, When Selector Lever“2”®“1”Position".
o20. Vehicle Does Not Decelerate By Engine Brake,AT- 3 8 1 , "
20. Vehicle Does Not Decelerate By Engine
Brake".
o21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches , and throttle position sen-
sor Circuit Checks),AT-382, "
21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control
Switches, and Throttle Position Sensor Circuit Checks)".
oSELF-DIAGNOSTIC PROCEDURE — Mark detected items.
oVehicle speed sensor·A/T (Revolution sensor),AT- 3 9 2 , "
VEHICLE SPEED SENSOR·A/T (REVO-
LUTION SENSOR)".
oVehicle speed sensor·MTR,AT-397, "
DTC VEHICLE SPEED SENSOR MTR".
oAccelerator pedal position(APP) sensor,AT- 4 0 1 , "
ACCELE RATOR PEDAL POSITION (APP)
SENSOR".
oShift solenoid valve A,AT-406, "
SHIFT SOLENOID VALVE A".
oShift solenoid valve B,AT-4 11 , "
SHIFT SOLENOID VALVE B".
oOverrun clutch solenoid valve,AT- 4 1 6 , "
OVERRUNCLUTCHSOLENOIDVALVE".
oTorque converter clutch solenoid valve,AT-421, "
TORQUE CONVERTER CLUTCH SOLENOID
VA LV E".
oBatt/fluid temp sen (A/T fluid temperature sensor and TCM power source),AT-426, "
BATT/FLUID
TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)".
oEngine speed signal,AT- 4 3 2 , "
ENGINE SPEED SIGNAL".
oLine pressure solenoid valve,AT-436, "
LINE PRESSURE SOLENOID VALVE".
oCAN communication line,AT-443, "
CAN CAMMUNICATION LINE".
oControl unit (RAM), control unit (ROM),AT- 2 2 6 , "
DTC CONTROL UNIT (RAM), CONTROL UNIT
(ROM)".
oControl unit (EEP ROM),AT- 2 2 8 , "
DTC CONTROL UNIT(EEPROM)".
oPNP & overdrive control switches, and throttle position sensor,AT- 3 8 2 , "
21. TCM Self-diagnosis
Does Not Activate (PNP & Overdrive Control Switches, and Throttle Position Sensor Circuit Checks)"
.
oBattery
oOthers

AT-286
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
TROUBLE DIAGNOSIS — BASIC INSPECTION
PFP:00000
A/T Fluid CheckECS004VR
FLUID LEAKAGE CHECK
1. Clean area suspected of leaking. — for example, mating surface
of converter housing and transmission case.
2. Start engine, apply foot brake, place selector lever in “D” posi-
tion and wait a few minutes.
3. Stop engine.
4. Check for fresh leakage.
FLUID CONDITION CHECK
FLUID LEVEL CHECK
Refer to “Checking A/T Fluid”,AT-13, "A/T FLUID".
SAT767B
SAT288G
Fluid color Suspected problem
Dark or black with burned odor Wear of frictional material
Milky pink Water contamination — Road water
entering through filler tube or breather
Varnished fluid, light to dark brown and
tackyOxidation — Over or under filling, —
Overheating
SAT638A

TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-287
[EXC.F/EURO-OBD]
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Stall TestECS004VS
STALL TEST PROCEDURE
1. Check A/T fluid and engine oil levels. If necessary, add.
2. Drive vehicle for approx. 10 minutes or until fluid and oil reach
operating temperature.
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
lIt 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.
6. Accelerate to wide open throttle gradually while applying foot
brake.
7. Quickly note the engine stall revolution and immediately release
throttle.
lDuring test, never hold throttle wide open for less than 5
seconds.
Stall revolution:
8. Move selector lever to “N” position.
9. Cool off ATF.
lRun engine at idle for at least one minute.
10. Repeat steps 5 through 9 with selector lever in “2”, “1” and “R”
positions.ATF operating temperature:
50 - 80°C (122 - 176°F)
SAT647B
SAT513G
SAT514G
QR20DE 2,450 - 2,950 rpm
SAT771B