2003 NISSAN X-TRAIL engine

AT-56
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
TROUBLE DIAGNOSIS — INTRODUCTION
PFP:00000
IntroductionECS0 04 QO
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.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the EURO-OBD related parts
of the A/T system for malfunction-diagnostic purposes. The TCM is
capable of diagnosing malfunctioning parts while the ECM can store
malfunctions in its memory.
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 GST) or a circuit tester connected should
be performed. Follow the “Work Flow”. Refer toAT- 6 1 , "
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-57, "
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

TROUBLE DIAGNOSIS — INTRODUCTION
AT-57
[EURO-OBD]
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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
Malfunction indicator lamp (MIL)oContinuously litoNot lit

AT-58
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
Diagnostic Worksheet
1.oRead the Fail-safe and listen to customer complaints.AT-57, "Infor-
mation from
Customer"
2.oCHECK A/T FLUIDAT-64, "A/T
Fluid Check"oLeakage (Follow specified procedure)
oFluid condition
oFluid level
3.oPerform STALL TEST and LINE PRESSURE TEST.AT-65, "
Stall
Te s t",AT- 6 8 ,
"Line Pres-
sure Test"
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:

TROUBLE DIAGNOSIS — INTRODUCTION
AT-59
[EURO-OBD]
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4.oPerform all ROAD TEST and mark required procedures.AT-69, "Road
Te s t"
4-
1.Check before engine is started.AT-70, "1.
CHECK
BEFORE
ENGINE IS
STARTED"
oSELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCE-
DURE. — Mark detected items.
oPNP switch,AT- 1 3 0 , "
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH".
oA/T fluid temperature sensor,AT-136, "
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIR-
CUIT".
oVehicle speed sensor·A/T (Revolution sensor),AT- 1 4 2 , "
DTC P0720 VEHICLE SPEED SEN-
SOR·A/T (REVOLUTION SENSOR)".
oEngine speed signal,AT- 1 4 7 , "
DTC P0725 ENGINE SPEED SIGNAL".
oTorque converter clutch solenoid valve,AT-181, "
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE".
oLine pressure solenoid valve,AT-186, "
DTC P0745 LINE PRESSURE SOLENOID VALVE".
oShift solenoid valve A,AT-193, "
DTC P0750 SHIFT SOLENOID VALVE A".
oShift solenoid valve B,AT-198, "
DTC P0755 SHIFT SOLENOID VALVE B".
oAccelerator pedal position (App) sensor,AT-203, "
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR".
oOverrun clutch solenoid valve,AT- 2 0 8 , "
DTCP1760OVERRUNCLUTCHSOLENOIDVALVE".
oPNP & overdrive control switches, and throttle position sensor,AT- 2 6 0 , "
21. TCM Self-diagnosis
Does Not Activate (PNP & Overdrive Control Switches, and Throttle Position Sensor Circuit Checks)"
.
oBatt/fluid temp sen (A/T fluid temperature sensor and TCM power source),AT-216, "
DTC BATT/
FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)".
oVehicle speed sensor·MTR,AT-222, "
DTC VEHICLE SPEED SENSOR MTR".
oCAN communication line,EC-114, "
DTC U1000 CAN COMMUNICATION 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)".
oBattery
oOthers
4-
2.Check at idleAT-71, "
2.
CHECK AT
IDLE"o1. O/D OFF Indicator Lamp Does Not Come On,AT- 2 3 2 , "1. O/D OFF Indicator Lamp Does Not Come
On".
o2. Engine Cannot Be Started In “P” And “N” Position,AT- 2 3 3 , "
2. Engine Cannot Be Started In“P”and
“N”Position".
o3. In “P” Position, Vehicle Moves Forward Or Backward When Pushed,AT-234, "
3. In“P”Position, Vehi-
cle Moves Forward Or Backward When Pushed".
o4. In “N” Position, Vehicle Moves,AT- 2 3 4 , "
4. In“N”Position, Vehicle Moves".
o5. Large Shock. “N”®“R” Position,AT- 2 3 6 , "
5. Large Shock.“N”®“R”Position".
o6. Vehicle Does Not Creep Backward In “R” Position,AT- 2 3 7 , "
6. Vehicle Does Not Creep Backward In
“R”Position".
o7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position,AT-240, "
7. Vehicle Does Not Creep For-
ward In“D”,“2”Or“1”Position".

AT-60
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION
4. 4-
3.Cruise testAT-74, "3.
CRUISE
TEST"
AT-78,
"Cruise Test
—Part 1"
Part-1
o8. Vehicle Cannot Be Started From D
1,AT- 2 4 2 , "8. Vehicle Cannot Be Started From D1".
o9. A/T Does Not Shift: D
1®D2Or Does Not Kickdown: D4®D2,AT-244, "9. A/T Does Not Shift: D1
®D2Or Does Not Kickdown: D4®D2".
o10. A/T Does Not Shift: D
2®D3,AT-246, "10. A/T Does Not Shift: D2®D3".
o11. A/T Does Not Shift: D
3®D4,AT-249, "11.A/TDoesNotShift:D3®D4".
o12. A/T Does Not Perform Lock-up,AT-252, "
12. A/T Does Not Perform Lock-up".
o13. A/T Does Not Hold Lock-up Condition,AT-253, "
13. A/T Does Not Hold Lock-up Condition".
o14. Lock-up Is Not Released,AT-254, "
14. Lock-up Is Not Released".
o15. Engine Speed Does Not Return To Idle (Light Braking D
4®D3),AT- 2 5 5 , "15. Engine Speed Does
Not Return To Idle (Light Braking D4®D3)".
Part-2AT-81,
"Cruise Test
—Part 2"o16. Vehicle Does Not Start From D1,AT-257, "16. Vehicle Does Not Start From D1".
o9. A/T Does Not Shift: D
1®D2Or Does Not Kickdown: D4®D2,AT-244, "9. A/T Does Not Shift: D1
®D2Or Does Not Kickdown: D4®D2".
o10. A/T Does Not Shift: D
2®D3,AT-246, "10. A/T Does Not Shift: D2®D3".
o11. A/T Does Not Shift: D
3®D4,AT-249, "11.A/TDoesNotShift:D3®D4".
Part-3AT-83,
"Cruise Test
—Part 3"o17. A/T Does Not Shift: D4®D3When Overdrive Control Switch “ON”®“OFF”,AT- 2 5 8 , "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- 2 5 5 , "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- 2 5 8 , "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-255, "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-259, "19. A/T Does Not
Shift: 22®11, When Selector Lever“2”®“1”Position".
o20. Vehicle Does Not Decelerate By Engine Brake,AT- 2 5 9 , "
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-260, "
21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control
Switches, and Throttle Position Sensor Circuit Checks)".
oSELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCE-
DURE — Mark detected items.
oPNP switch,AT-130, "
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH".
oA/T fluid temperature sensor,AT- 1 3 6 , "
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIR-
CUIT".
oVehicle speed sensor·A/T (Revolution sensor),AT-142, "
DTC P0720 VEHICLE SPEED SEN-
SOR·A/T (REVOLUTION SENSOR)".
oEngine speed signal,AT-147, "
DTC P0725 ENGINE SPEED SIGNAL".
oTorque converter clutch solenoid valve,AT- 1 8 1 , "
DTC P0740 TORQUE CONVERTER CLUTCH
SOLENOID VALVE".
oLine pressure solenoid valve,AT- 1 8 6 , "
DTC P0745 LINE PRESSURE SOLENOID VALVE".
oShift solenoid valve A,AT-193, "
DTC P0750 SHIFT SOLENOID VALVE A".
oShift solenoid valve B,AT-198, "
DTC P0755 SHIFT SOLENOID VALVE B".
oAccelerator pedal position (App) sensor,AT- 2 0 3 , "
DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR".
oOverrun clutch solenoid valve,AT-208, "
DTCP1760OVERRUNCLUTCHSOLENOIDVALVE".
oPNP & overdrive control switches, and throttle position sentor,AT- 2 6 0 , "
21. TCM Self-diagnosis
Does Not Activate (PNP & Overdrive Control Switches, and Throttle Position Sensor Circuit Checks)"
.
oA/T fluid temperature sensor and TCM power source,AT- 2 1 6 , "
DTCBATT/FLUIDTEMPSEN(A/T
FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE)".
oVehicle speed sensor·MTR,AT- 2 2 2 , "
DTC VEHICLE SPEED SENSOR MTR".
oCAN communication line,EC-114, "
DTC U1000 CAN COMMUNICATION 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)".
oBattery
oOthers

TROUBLE DIAGNOSIS — INTRODUCTION
AT-63
[EURO-OBD]
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*1:AT- 5 7 , "Information from Customer"*2:AT- 5 8 , "Diagnostic Worksheet"*3:AT-7 , "ServiceNoticeorPrecau-
tions"
*4:AT- 6 4 , "A/T Fluid Check"*5:AT- 6 5 , "Stall Test"andAT- 6 8 , "Line Pressure
Te s t"
*6:AT-6 9 , "Road Test"
*7:AT- 4 1 , "CONSULT-II"*8:AT- 3 7 , "ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION"
*9:AT-5 0 , "Diagnostic Procedure
Without CONSULT-II"
*10:AT- 1 3 0 , "DTC P0705 PARK/NEU-
TRAL POSITION (PNP) SWITCH"
*11:AT- 2 2 2 , "DTC VEHICLE SPEED SENSOR
MTR"andAT-226, "DTC CONTROL UNIT
(RAM), CONTROL UNIT (ROM)"toAT- 2 2 8 ,
"DTC CONTROL UNIT(EEPROM)"
*12:AT-2 3 2 , "1. O/D OFF Indicator
Lamp Does Not Come On"
*13:AT- 2 5 9 , "20. Vehicle Does Not Decel-
erate By Engine Brake"
*14:AT- 8 6 , "Symptom Chart"*15:AT-3 9 , "HOW TO ERASE DTC"
*16:AT- 1 3 1 , "DIAGNOSTIC TROUBLE
CODE (DTC) CONFIRMATION PRO-
CEDURE"
*17:AT- 2 2 2 , "DTC VEHICLE SPEED SENSOR
MTR"andAT-226, "DTC CONTROL UNIT
(RAM), CONTROL UNIT (ROM)"toAT- 2 2 8 ,
"DTC CONTROL UNIT(EEPROM)"
*18: EC-XX

AT-64
[EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION
TROUBLE DIAGNOSIS — BASIC INSPECTION
PFP:00000
A/T Fluid CheckECS0 04 QQ
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-65
[EURO-OBD]
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Stall TestECS004QR
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