2003 NISSAN X-TRAIL check engine light

TC BOOST CONTROL SOLENOID VALVE
EC-1473
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
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MA
EC

Diagnostic ProcedureEBS0125W
1. CHECK OVERALL FUNCTION
1. Start engine and let it idle.
2. Make sure that turbocharger control actuator rod moves slightly
when engine is started.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2. CHECK TURBOCHARGER BOOST CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1. Disconnect turbocharger boost control solenoid valve harness
connector.
2. Turn ignition switch ON.
3. Check voltage between turbocharger boost control solenoid
valve terminals 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors F30, M63

Harness for open and short between turbocharger boost control solenoid valve and ECM relay

Harness for open and short between turbocharger boost control solenoid valve and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB1936E
PBIB1897E
Voltage: Battery voltage
PBIB1945E

AT-3
D
E
F
G
H
I
J
K
L
MA
B
AT
DTC CONTROL UNIT(EEPROM) ........................... 200
Description ........................................................... 200
On Board Diagnosis Logic ................................... 200
Possible Cause .................................................... 200
DTC Confirmation Procedure ............................... 200
Diagnostic Procedure ........................................... 201
TROUBLE DIAGNOSES FOR SYMPTOMS .......... 202
Wiring Diagram — AT — NONDTC ...................... 202
O/D OFF Indicator Lamp Does Not Come On ..... 204
Engine Cannot Be Started In “P” and “N” Position . 206
In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed .............................................. 207
In “N” Position, Vehicle Moves ............................. 208
Large Shock. “N” → “R” Position .......................... 209
Vehicle Does Not Creep Backward In “R” Position . 210
Vehicle Does Not Creep Forward In “D”, “2” Or “1”
Position ................................................................ 212
Vehicle Cannot Be Started From D
1 ..................... 214
A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown:
D
4 → D2 ............................................................... 217
A/T Does Not Shift: D
2 → D3 ............................... 220
A/T Does Not Shift: D
3 → D4 ............................... 222
A/T Does Not Perform Lock-up ............................ 224
A/T Does Not Hold Lock-up Condition ................. 225
Lock-up Is Not Released ...................................... 227
Engine Speed Does Not Return To Idle (Light Brak-
ing D
4 → D3 ) ....................................................... 228
Vehicle Does Not Start From D
1 ........................... 230
A/T Does Not Shift: D
4 → D3 , When Overdrive Con-
trol Switch “ON” → “OFF” ..................................... 231
A/T Does Not Shift: D
3 → 22 , When Selector Lever
“D” → “2” Position ................................................ 232
A/T Does Not Shift: 2
2 → 11 , When Selector Lever
“2” → “1” Position ................................................. 233
Vehicle Does Not Decelerate By Engine Brake ... 235
TCM Self-diagnosis Does Not Activate ................ 237
EXC.F/EURO-OBD
ON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TION ........................................................................ 242
CONSULT-II ......................................................... 242
Diagnostic Procedure Without CONSULT-II ......... 246
TROUBLE DIAGNOSIS — INTRODUCTION ......... 251
Introduction .......................................................... 251
Work Flow ............................................................ 255
TROUBLE DIAGNOSIS — BASIC INSPECTION .. 256
A/T Fluid Check .................................................... 256
Stall Test ............................................................... 257
Line Pressure Test ............................................... 260
Road Test ............................................................. 262
TROUBLE DIAGNOSIS — GENERAL DESCRIP-
TION ........................................................................ 277
Symptom Chart .................................................... 277
TCM Terminals and Reference Value ................... 286
TROUBLE DIAGNOSES FOR SYMPTOMS .......... 289
Wiring Diagram — AT — NONDTC ...................... 289
O/D OFF Indicator Lamp Does Not Come On ..... 291
Engine Cannot Be Started In “P” and “N” Position . 293In “P” Position, Vehicle Moves Forward Or Back-
ward When Pushed ..............................................294
In “N” Position, Vehicle Moves ..............................295
Large Shock. “N” → “R” Position ..........................296
Vehicle Does Not Creep Backward In “R” Position .297
Vehicle Does Not Creep Forward In “D”, “2” Or “1”
Position .................................................................299
Vehicle Cannot Be Started From D
1 .....................301
A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown:
D
4 → D2 ................................................................304
A/T Does Not Shift: D
2 → D3 ................................307
A/T Does Not Shift: D
3 → D4 ................................309
A/T Does Not Perform Lock-up ............................311
A/T Does Not Hold Lock-up Condition ..................312
Lock-up Is Not Released ......................................314
Engine Speed Does Not Return To Idle (Light Brak-
ing D
4 → D3 ) ........................................................315
Vehicle Does Not Start From D
1 ...........................317
A/T Does Not Shift: D
4 → D3 , When Overdrive Con-
trol Switch “ON” → “OFF” .....................................318
A/T Does Not Shift: D
3 → 22 , When Selector Lever
“D” → “2” Position .................................................319
A/T Does Not Shift: 2
2 → 11 , When Selector Lever
“2” → “1” Position .................................................320
Vehicle Does Not Decelerate By Engine Brake ....322
TCM Self-diagnosis Does Not Activate ................324
ALL
CAN COMMUNICATION LINE ...............................329
Description ............................................................329
On Board Diagnosis Logic ....................................329
Possible Cause .....................................................329
DTC Confirmation Procedure ...............................329
Wiring Diagram — AT — CAN ..............................330
Diagnostic Procedure ...........................................331
VEHICLE SPEED SENSOR·A/T (REVOLUTION
SENSOR) ................................................................332
Description ............................................................332
CONSULT-II Reference Value ..............................332
On Board Diagnosis Logic ....................................332
Possible Cause .....................................................332
DTC Confirmation Procedure ...............................332
Wiring Diagram — AT — VSSA/T ........................334
Diagnostic Procedure ...........................................335
DTC VEHICLE SPEED SENSOR MTR ..................339
Description ............................................................339
CONSULT-II Reference Value ..............................339
On Board Diagnosis Logic ....................................339
Possible Cause .....................................................339
DTC Confirmation Procedure ...............................339
Wiring Diagram — AT — VSSMTR ......................341
Diagnostic Procedure ...........................................343
ACCELE RATOR PEDAL POSITION (APP) SEN-
SOR .........................................................................345
Description ............................................................345
On Board Diagnosis Logic ....................................345
Possible Cause .....................................................345
DTC Confirmation Procedure ...............................345

AT-44
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION

Malfunction Indicator lamp (MIL)ECS004QL
1. The malfunction indicator lamp will light up when the ignition
switch is turned ON without the engine running. This is for
checking the lamp.

If the malfunction indicator does not light up, refer to DI-33,
"Schematic" .
(Or see MIL & CONSULT-II in EC section. Refer to EC-64,
"Malfunction Indicator (MI)" (WITH EURO-OBD) or EC-516,
"Malfunction Indicator (MI)" (WITHOUT EURO-OBD) or EC-
102, "CONSULT-II Function" (WITH EURO-OBD) or EC-551,
"CONSULT-II Function" (WITHOUT EURO-OBD).
2. When the engine is started, the malfunction indicator should go
off.
If the lamp remains on, the on board diagnostic system has detected an emission-related (EURO-OBD)
malfunction. For detail, refer to EC-51, "
ON BOARD DIAGNOSTIC (OBD) SYSTEM" .
CONSULT-IIECS004QM
After performing “SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)” AT- 4 5 , place check marks for
results on the “DIAGNOSTIC WORKSHEET”, AT- 5 8
. 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
SAT652J
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- 4 5
Data monitor Input/Output data in the ECM can be read.AT- 4 6
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. —

AT-60
[EURO-OBD]
TROUBLE DIAGNOSIS — INTRODUCTION

4. 4-3. Cruise testAT- 7 4
AT- 7 8Part-1
❏ Vehicle Cannot Be Started From D
1 , AT-214 .
❏ A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown: D4 → D2 , AT- 2 1 7 .
❏ A/T Does Not Shift: D
2 → D3 , AT-220 .
❏ A/T Does Not Shift: D
3 → D4 , AT-222 .
❏ A/T Does Not Perform Lock-up, AT- 2 2 4
.
❏ A/T Does Not Hold Lock-up Condition, AT- 2 2 5
.
❏ Lock-up Is Not Released, AT- 2 2 7
.
❏ Engine Speed Does Not Return To Idle (Light Braking D
4 → D3 ), AT- 2 2 8 .
Part-2AT- 8 1
❏ Vehicle Does Not Start From D1 , AT-230 .
❏ A/T Does Not Shift: D
1 → D2 Or Does Not Kickdown: D4 → D2 , AT- 2 1 7 .
❏ A/T Does Not Shift: D
2 → D3 , AT-220 .
❏ A/T Does Not Shift: D
3 → D4 , AT-222 .
Part-3AT- 8 2
❏ A/T Does Not Shift: D4 → D3 When Overdrive Control Switch “ON” → “OFF”, AT- 2 3 1 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In D
3 ), AT-228 .
❏ A/T Does Not Shift: D
3 → 22 , When Selector Lever “D” → “2” Position, AT-232 .
❏ Engine Speed Does Not Return To Idle (Engine Brake In 2
2 ), AT- 2 2 8 .
❏ A/T Does Not Shift: 2
2 → 11 , When Selector Lever “2” → “1” Position, AT- 2 3 3 .
❏ Vehicle Does Not Decelerate By Engine Brake, AT-235
.
❏ TCM Self-diagnosis Does Not Activate (PNP & Overdrive control switches, and throttle position sensor
circuit checks), AT-237
.
❏ SELF-DIAGNOSTIC PROCEDURE/DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PRO-
CEDURE — Mark detected items.
❏ PNP switch, AT-100
.
❏ A/T fluid temperature sensor, AT-106
.
❏ Vehicle speed sensor·A/T (Revolution sensor), AT- 11 2
.
❏ Engine speed signal, AT- 11 9
.
❏ Torque converter clutch solenoid valve, AT- 1 4 8
.
❏ Line pressure solenoid valve, AT-154
.
❏ Shift solenoid valve A, AT-161
.
❏ Shift solenoid valve B, AT-167
.
❏ Accelerator pedal position (App) sensor, AT-173
.
❏ Overrun clutch solenoid valve, AT-178
.
❏ PNP & overdrive control switches, and throttle position sensor, AT- 2 3 7
.
❏ A/T fluid temperature sensor and TCM power source, AT-184
.
❏ Vehicle speed sensor·MTR, AT- 1 9 2
.
❏ CAN communication line, AT- 9 7
.
❏ Control unit (RAM), control unit (ROM), AT- 1 9 8
.
❏ Control unit (EEP ROM), AT- 2 0 0
.
❏ Battery
❏ Others
5.❏ For self-diagnosis NG items, inspect each component. Repair or replace the damaged parts.AT- 5 2
6.❏ Perform all Road Test and re-mark required procedures.AT- 7 0
7.❏ Perform DTC Confirmation Procedure for following MILL indicating items and check out NG items.EC-52
❏ DTC (P0731) A/T 1st gear function, AT-125 .
❏ DTC (P0732) A/T 2nd gear function, AT- 1 3 0
.
❏ DTC (P0733) A/T 3rd gear function, AT-135
.
❏ DTC (P0734) A/T 4th gear function, AT-140
.
8.❏ 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- 8 5
9.❏ Erase DTC from TCM and ECM memories.AT- 4 2

AT-64
[EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION

TROUBLE DIAGNOSIS — BASIC INSPECTIONPFP:00000
A/T Fluid CheckECS004QQ
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 position
and wait a few minutes.
3. Stop engine.
4. Check for fresh leakage.
FLUID CONDITION CHECK
FLUID LEVEL CHECK
Refer to AT- 1 6 , "Checking 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

AT-80
[EURO-OBD]
TROUBLE DIAGNOSIS — BASIC INSPECTION

5. CHECK LOCK-UP (D4 TO D4 L/U)
Check lock-up (D
4 to D4 L/U).
Specified speed when lock-up occurs. Refer to AT- 5 3 0 , "
VEHICLE SPEED WHEN PERFORMING LOCK-UP"
.
Read vehicle speed, throttle opening when lock-up duty
becomes 94%. Refer to AT- 4 6 , "
DATA MONITOR MODE (A/T)" .
Does A/T perform lock-up at the specified speed?
YES >> GO TO 6.
NO >>

Mark the box on the “DIAGNOSTIC WORKSHEET”.
Refer to AT- 5 8
.

GO TO AT- 2 2 4 , "A/T Does Not Perform Lock-up" .

Continue “Road Test”.
6. CHECK LOCK-UP HOLD
Check lock-up hold.
When lock-up duty becomes 94%. Refer to AT- 4 6 , "
DATA MONITOR MODE (A/T)" .
Does A/T hold lock-up condition for more than 30 seconds?
YES >> GO TO 7.
NO >>

Mark the box on the “DIAGNOSTIC WORKSHEET”. Refer to AT- 5 8 .

GO TO AT- 2 2 5 , "A/T Does Not Hold Lock-up Condition" .

Continue “Road Test”.
7. CHECK SHIFT-DOWN (D4 L/U TO D4 )
Release accelerator pedal.
When lock-up duty becomes 4%. Refer to AT- 4 6 , "
DATA
MONITOR MODE (A/T)" .
Is lock-up released when accelerator pedal is released?
YES >> GO TO 8.
NO >>

Mark the box on the “DIAGNOSTIC WORKSHEET”.
Refer to AT- 5 8
.

GO TO AT- 2 2 7 , "Lock-up Is Not Released" .

Continue “Road Test”.
8. CHECK SHIFT-DOWN (D4 TO D3 )
Decelerate vehicle by applying foot brake lightly.
Read gear position and engine speed. Refer to AT- 4 6 , "
DATA
MONITOR MODE (A/T)" .
Does engine speed return to idle smoothly when A/T is shifted from
D4 to D3 ?
YES >> 1. Stop vehicle.
2. Go to AT- 8 1 , "
Cruise Test — Part 2" .
NO >>

Mark the box on the “DIAGNOSTIC WORKSHEET”.
Refer to AT- 5 8
.

GO TO AT- 2 2 8 , "Engine Speed Does Not Return To
Idle (Light Braking D4 → D3 )" .

Continue “Road Test”.
SAT957I
SAT958I
SAT959I

AT-228
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS

Engine Speed Does Not Return To Idle (Light Braking D4 → D3 )ECS004T8
SYMPTOM:
Engine speed does not smoothly return to idle when A/T shifts from D
4 to D3 .
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 overrun clutch solenoid valve circuit after cruise test?
YES >> Check overrun clutch solenoid valve circuit. Refer to AT- 1 7 8 , "DTC P1760 OVERRUN CLUTCH
SOLENOID VALVE" .
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. 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 4.
NG >> GO TO 6.
4. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT- 4 0 4 , "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Overrun clutch control valve
–Overrun clutch reducing valve
–Overrun clutch solenoid valve
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
PBIB0498E
SAT171B

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