2003 NISSAN X-TRAIL lock

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-151
[EURO-OBD]
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TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL
Diagnostic ProcedureECS004RS
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “TCC S/V DUTY” while driving.
Check the value changes according to driving speed.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
3GY/RTorque converter
clutch solenoid
valveWhen A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
Monitor item Condition Display value
TCC S/V
DUTY (%)Lock-up OFF
↓
Lock-up ONApprox. 4%
↓
Approx. 94%
SCIA3257E
Name Connec-
tor No. Terminal
No. (Wire
color) ConditionJudge-
ment stan-
dard
(Approx.)
Torque con-
verter clutch
solenoid
valve F46 3 (GY/R) -
GroundWhen A/T performs lock-
up.8 - 15V
When A/T does not per-
form lock-up.0V
SCIA3261E

AT-224
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS

A/T Does Not Perform Lock-upECS004T5
SYMPTOM:
A/T does not perform lock-up at the specified speed.
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 4 5 , "
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)" or AT- 5 2 ,
"Diagnostic Procedure Without CONSULT-II" .
Does self-diagnosis show damage to A/T fluid temperature sensor, vehicle speed sensor
·A/T (revolution sen-
sor), engine speed signal, vehicle speed sensor·MTR or torque converter clutch solenoid valve circuit after
cruise test?
YES >> Check damaged circuit. Refer to AT- 1 4 8 , "DTC P0740 TORQUE CONVERTER CLUTCH SOLE-
NOID VALVE" , AT- 1 0 6 , "DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT" , AT- 11 2 ,
"DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" , AT- 11 9 , "DTC P0725
ENGINE SPEED SIGNAL" , AT- 1 9 2 , "DTC VEHICLE SPEED SENSOR MTR" .
NO >> GO TO 2.
2. CHECK ACCELERATOR PEDAL POSITION (APP) SENSOR
Check accelerator pedal position (APP) sensor. Refer to AT- 1 7 3 ,
"DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR"
OK or NG
OK >> GO TO 3.
NG >> Repair or replace accelerator pedal position (APP) sen-
sor.
3. DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to AT- 4 0 4 , "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Torque converter clutch control valve
–Torque converter clutch solenoid valve
–Torque converter relief valve
–Pilot valve
–Pilot filter
3. Disassemble A/T. Refer to AT- 4 2 4 , "
Disassembly" .
4. Check torque converter. Refer to AT- 4 2 4 , "
Disassembly" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SYMPTOM
Check again. Refer to AT- 7 8 , "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection. Refer to AT- 9 4 , "
TCM Terminals and Reference
Va l u e" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
PBIB0498E

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-225
[EURO-OBD]
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A/T Does Not Hold Lock-up ConditionECS004T6
SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds.
1. CHECK DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 4 5 , "
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)" or AT- 5 2 ,
"Diagnostic Procedure Without CONSULT-II" .
Does self-diagnosis show damage to engine speed signal circuit after cruise test?
YES >> Check engine speed signal circuit. Refer to AT- 11 9 , "DTC P0725 ENGINE SPEED SIGNAL" .
NO >> GO TO 2.
2. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 4 0 4 , "
COMPONENTS" .
2. Check A/T fluid condition. Refer to AT- 6 4 , "
FLUID CONDITION
CHECK" .
OK or NG
OK >> GO TO 3.
NG >> GO TO 5.
3. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT- 4 0 4 , "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Torque converter clutch control valve
–Torque converter clutch solenoid valve
–Pilot valve
–Pilot filter
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK SYMPTOM
Check again. Refer to AT- 7 8 , "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection. Refer to AT- 9 4 , "
TCM Terminals and Reference
Va l u e" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
SAT171B

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-227
[EURO-OBD]
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Lock-up Is Not ReleasedECS004T7
SYMPTOM:
Lock-up is not released when accelerator pedal is released.
1. CHECK ACCELERATOR PEDAL POSITION (APP) SENSOR CIRCUIT
Perform self-diagnosis. Refer to AT- 4 5 , "
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)" or AT- 5 2 ,
"Diagnostic Procedure Without CONSULT-II" .
Do the self-diagnosis results indicate accelerator pedal position (APP) sensor circuit?
YES >> Check accelerator pedal position (APP) sensor circuit. Refer to AT- 1 7 3 , "DTC P1705 ACCELER-
ATOR PEDAL POSITION (APP) SENSOR" .
NO >> GO TO 2.
2. CHECK SYMPTOM
Check again. Refer to AT- 7 8 , "
Cruise Test — Part 1" .
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection. Refer to AT- 9 4 , "
TCM Terminals and Reference
Va l u e" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.

AT-242
[EXC.F/EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

[EXC.F/EURO-OBD]ON BOARD DIAGNOSTIC SYSTEM DESCRIPTIONPFP:00000
CONSULT-IIECS004NW
After performing AT- 2 4 2 , "SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)" , place check marks for
results on the AT- 2 5 2 , "
DIAGNOSTIC WORKSHEET" . Reference pages are provided following the items.
NOTICE:
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–Actual shift schedule has more or less tolerance or allowance,
–Shift schedule indicated in Service Manual refers to the point where shifts start, and
–Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSULT-II at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
FUNCTION
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
1. Turn on CONSULT-II and touch “A/T” for TCM self-diagnosis.
If A/T is not displayed, check TCM power supply and ground cir-
cuit. Refer to AT- 2 8 6 , "
TCM Terminals and Reference Value" . If
result is NG, refer to PG-2, "
POWER SUPPLY ROUTING" .
Diagnostic test mode Function Reference page
Work supportThis mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II.—
Self-diagnostic results Self-diagnostic results can be read and erased quickly.AT- 2 4 2
Data monitor Input/Output data in the ECM can be read.AT- 2 4 4
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read. —
Function testConducted by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
DTC work support Select the operating condition to confirm Diagnosis Trouble Codes.AT- 4 7
TCM part number TCM part number can be read. —
SAT014K

TROUBLE DIAGNOSIS — INTRODUCTION
AT-251
[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 to AT- 6 1
.
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a drive ability 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- 5 8
) should be used.
Start your diagnosis by looking for “conventional” problems first. This
will help troubleshoot drive ability problems on an electronically con-
trolled engine vehicle.
Also check related Service bulletins for information.
SAT631IA
SAT632I
SEF234G

AT-252
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION

DIAGNOSTIC WORKSHEET
Information from Customer
KEY POINTS

WHAT..... Vehicle & A/T model

WHEN..... Date, Frequencies

WHERE..... Road conditions

HOW..... Operating conditions, Symptoms
Customer name MR/MS Model & Year VIN
Trans. model Engine Mileage
Incident Date Manuf. Date In Service Date
Frequency❏ Continuous❏ Intermittent ( times a day)
Symptoms❏ Vehicle does not move. (❏ Any position❏ Particular position)
❏ No up-shift (❏ 1st → 2nd❏ 2nd → 3rd❏ 3rd → O/D)
❏ No down-shift (❏ O/D → 3rd❏ 3rd → 2nd❏ 2nd → 1st)
❏ Lockup malfunction
❏ Shift point too high or too low.
❏ Shift shock or slip (❏ N → D❏ Lockup❏ Any drive position)
❏ Noise or vibration
❏ No kick down
❏ No pattern select
❏ Others
()
O/D OFF indicator lamp Blinks for about 8 seconds.
❏ Continuously lit❏ Not lit

AT-254
[EXC.F/EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION

4. 4-3. Cruise testAT-266,
AT-270
Part-1
❏ Vehicle Cannot Be Started From D
1 , AT- 3 0 1 .
❏ A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown: D4 → D2 , AT-304 .
❏ A/T Does Not Shift: D
2 → D3 , AT- 3 0 7 .
❏ A/T Does Not Shift: D
3 → D4 , AT- 3 0 9 .
❏ A/T Does Not Perform Lock-up,AT- 3 11
.
❏ A/T Does Not Hold Lock-up Condition, AT- 3 1 2
.
❏ Lock-up Is Not Released, AT- 3 1 4
.
❏ Engine Speed Does Not Return To Idle (Light Braking D
4 → D3 ), AT-315 .
Part-2AT-273
❏ Vehicle Does Not Start From D1 , AT- 3 1 7 .
❏ A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown: D4 → D2 , AT-304 .
❏ A/T Does Not Shift: D
2 → D3 , AT- 3 0 7 .
❏ A/T Does Not Shift: D
3 → D4 , AT- 3 0 9 .
Part-3AT-275
❏ A/T Does Not Shift: D4 → D3 When Overdrive Control Switch “ON” → “OFF”, AT-318 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In D
3 ), AT- 3 1 5 .
❏ A/T Does Not Shift: D
3 → 22 , When Selector Lever “D” → “2” Position, AT- 3 1 9 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In 2
2 ),AT-315 .
❏ A/T Does Not Shift: 2
2 → 11 , When Selector Lever “2” → “1” Position, AT-320 .
❏ Vehicle Does Not Decelerate By Engine Brake, AT- 3 2 2
.
❏ TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and throttle position sensor
Circuit Checks), AT-324
.
❏ SELF-DIAGNOSTIC PROCEDURE — Mark detected items.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT-332
.
❏ Vehicle speed sensor·MTR, AT- 3 3 9
.
❏ Accelerator pedal position (APP) sensor, AT-345
.
❏ Shift solenoid valve A, AT-350
.
❏ Shift solenoid valve B, AT-356
.
❏ Overrun clutch solenoid valve, AT-362
.
❏ Torque converter clutch solenoid valve, AT- 3 6 8
.
❏ Batt/fluid temp sen (A/T fluid temperature sensor and TCM power source), AT-374
.
❏ Engine speed signal, AT-382
.
❏ Line pressure solenoid valve, AT-387
.
❏ CAN communication line, AT-329
.
❏ Control unit (RAM), control unit (ROM), AT- 1 9 8
.
❏ Control unit (EEP ROM), AT- 2 0 0
.
❏ PNP & overdrive control switches, and throttle position sensor, AT- 3 2 4
.
❏ Battery
❏ Others
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT-246
6.❏ Perform all Road Test and re-mark required procedures.AT-262
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-277
8.❏ Erase self-diagnosis code from TCM memories.AT-245, AT-
250