2003 NISSAN X-TRAIL ec-478

EC-84
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

17. DETECT MALFUNCTIONING PART
Check the following.

Check camshaft position sensor (PHASE) and circuit. Refer to EC-254 .

Check crankshaft position sensor (POS) and circuit. Refer to EC-247 .
OK or NG
OK >> GO TO 18.
NG >> 1. Repair or replace.
2. GO TO 4.
18. CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a rare case.)
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer to EC-64, "
NATS
(Nissan Anti-theft System)" .
>> GO TO 4.
Symptom Matrix ChartEBS010LT
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel pump circuit 11232 22 3 2EC-443
Fuel pressure regulator system334444444 4EC-48
Injector circuit 11232 22 2EC-428
Evaporative emission system 334444444 4EC-473
Air Positive crankcase ventilation sys-
tem334444444 41EC-478
Incorrect idle speed adjustment 33 1111 1EC-79
Electric throttle control actuator 112332222 2 2EC-290
,
EC-292
,
EC-302
,
EC-310
IgnitionIncorrect ignition timing adjustment33111 11 1EC-79
Ignition circuit 11222 22 2EC-417
Main power supply and ground circuit 22333 33 23EC-124
Mass air flow sensor circuit 11222 22 2EC-149
Engine coolant temperature sensor circuit 11222322312EC-162

EC-190
[QR (WITH EURO-OBD)]
DTC P0133 HO2S1

7. CHECK HO2S1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between HO2S1 terminal 2 and ECM terminal 35.
Refer to Wiring Diagram.
2. Check harness continuity between ECM terminal 35 or HO2S1 terminal 2 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK MASS AIR FLOW SENSOR
Refer to EC-155, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace mass air flow sensor.
9. CHECK PCV VALVE
Refer to EC-478, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace PCV valve.
10. CHECK HEATED OXYGEN SENSOR 1
Refer to EC-190, "
Component Inspection" .
OK or NG
OK >> GO TO 11.
NG >> Replace heated oxygen sensor 1.
11 . CHECK INTERMITTENT INCIDENT
Refer to EC-123, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionEBS010OA
HEATED OXYGEN SENSOR 1
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select “MANU TRIG” and adjust “TRIGGER POINT” to 100% in “DATA MONITOR” mode with CONSULT-
II. Continuity should exist.
Continuity should not exist.

EC-478
[QR (WITH EURO-OBD)]
POSITIVE CRANKCASE VENTILATION

POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionEBS010VZ
SYSTEM DESCRIPTION
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold. During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the
PCV valve. Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of venti-
lating air. The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air
passes through the hose connecting air inlet tubes to rocker cover. Under full-throttle condition, the manifold
vacuum is insufficient to draw the blow-by flow through the valve. The flow goes through the hose connection
in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
Component InspectionEBS010W0
PCV (POSITIVE CRANKCASE VENTILATION) VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
PBIB0492E
PBIB1588E
PBIB1589E

IDX-3
A
C
D
E
F
G
H
I
J
K
L B
IDX
ALPHABETICAL INDEX
Blower unit ....................... ATC-125, MTC-22, MTC-24
BOOST - Wiring diagram ............... EC-1040, EC-1347
Boring/horning cylinder block(QR20DEQR25DE) .......
EM-103
Brake booster .................................................... BR-23
Brake fluid change ............................................... BR-8
Brake fluid level ................................................. MA-41
Brake fluid level and line check ........................... BR-8
Brake hydraulic line ........................................... BR-10
Brake inspection ................................................ MA-43
Brake lines and cables inspection ..................... MA-41
Brake master cylinder ........................................ BR-14
Brake pedal ......................................................... BR-6
Brake switch ..... EC-380, EC-733, EC-1177, EC-1475
BRK/SW - Wiring diagram EC-381, EC-735, EC-1178,
EC-1476
Bulb specifications .............................................. LT-92
Bumper, front ....................................................... EI-14
Bumper, rear ........................................................ EI-17
C
Camshaft inspection(QR20DEQR25DE) .......... EM-55
Camshaft inspection(YD22DDTi) .................... EM-171
Camshaft position sensor (CMPS) EC-1056, EC-1062,
EC-1363
, EC-1369
Camshaft position sensor (PHASE) .. EC-254, EC-646
Camshaft(QR20DEQR25DE) ........................... EM-53
Camshaft(YD22DDTi) ...................................... EM-170
CAN - Wiring diagram ......... EC-133, EC-580, EC-945,
EC-1269
, LAN-10, LAN-26, LAN-51, LAN-69, LAN-87
CAN (Controller Area Network) ........... BRC-8, LAN-9,
LAN-25
, LAN-50, LAN-68, LAN-86
CAN communication EC-38, EC-132, EC-500, EC-579,
EC-888
, EC-944, EC-1268, AT-32, AT-97, AT-329,
TF-43
, BRC-8, LAN-9, LAN-25, LAN-50, LAN-68,
LAN-86
Canister-See EVAP canister ............. EC-476, EC-868
CHARGE - Wiring diagram .................... SC-13, SC-14
Charging system ................................................ SC-12
Chassis and body maintenance ........................ MA-37
CHIME - Wiring diagram ................ DI-52, DI-55, DI-56
CIGAR - Wiring diagram .................................. WW-27
Cigarette lighter ............................................... WW-27
Circuit breaker ................................................... PG-12
CKPS - Wiring diagram .. EC-947, EC-1046, EC-1052,
EC-1271
, EC-1353, EC-1359
Clearance lamp ........................................ LT-4, LT-60
Clock ................................................................... DI-61
CLOCK - Wiring diagram .................................... DI-61
Closed loop control .............................. EC-35, EC-497
Clutch cover ....................................................... CL-14
Clutch disc ......................................................... CL-14
Clutch master cylinder ......................................... CL-8
Clutch operating cylinder ................................... CL-10
Clutch pedal ......................................................... CL-5
Clutch release bearing ....................................... CL-12
Clutch release mechanism ................................ CL-12
Clutch withdrawal lever ...................................... CL-12
CMPS - Wiring diagram . EC-947, EC-1058, EC-1064,
EC-1271
, EC-1365, EC-1371
Coil spring (rear) ............................................... RSU-8
Collision diagnosis .......................................... SRS-48
Combination meter ............................................... DI-4
Combination switch ............................................. LT-40
Component Location (auto A/C) ......... ATC-35, MTC-4
Compression pressure(QR20DEQR25DE) ..... EM-67
Compression pressure(YD22DDTi) ................ EM-196
Compressor clutch removal and installation .. ATC-146
Compressor special service tool ...................... ATC-14
Condenser ..................................................... ATC-155
Connecting rod bearing clearance(QR20DEQR25DE)
EM-101
Connecting rod bearing clearance(YD22DDTi) EM-232
Connecting rod bushing clearance(YD22DDTi) EM-226
Connecting rod(QR20DEQR25DE) ............... EM-101
Connecting rod(YD22DDTi) .............. EM-223, EM-228
CONSULT for engine ......................... EC-102, EC-551
CONSULT-II for engine ................... EC-926, EC-1251
Control lever (M/T) ............................................. MT-14
Control unit ..................................... ATC-120, MTC-21
Control units (terminal arrangement) ................. PG-72
Controller Area Network (CAN) ........... BRC-8, LAN-9,
LAN-25
, LAN-50, LAN-68, LAN-86
Converter housing installation ......................... AT-523
COOL/F - Wiring diagram EC-352, EC-704, EC-1014,
EC-1322
Coolant replacement(QR20DEQR25DE) ........ MA-20
Coolant replacement(YD22DDTi) ..................... MA-28
Cooling circuit (engine)(QR20DEQR25DE) ....... CO-7
Cooling circuit (engine)(YD22DDTi) ................. CO-29
Cooling fan ............................................ CO-18, CO-36
Cooling fan relay EC-363, EC-715, EC-1024, EC-1331
Coupling sleeve (M/T) ........................... MT-20, MT-25
Cowl top .............................................................. EI-20
Cowl top cover .................................................... EI-20
Crankcase ventilation system .......... EC-888, EC-1219
Crankcase ventilation system - See Positive crankcase
ventilation ........................................... EC-478
, EC-870
Crankshaft position sensor (POS) ..... EC-247, EC-638
Crankshaft position sensor (TDC) EC-1044, EC-1050,
EC-1351
, EC-1357
Crankshaft(QR20DEQR25DE) ........................ EM-83
Cylinder block boring(QR20DEQR25DE) ...... EM-104
Cylinder block boring(YD22DDTi) ................... EM-230
Cylinder block(QR20DEQR25DE) ................... EM-82
Cylinder block(YD22DDTi) .............................. EM-212
Cylinder head bolt tightening(QR20DEQR25DE) ........
EM-69
Cylinder head bolt tightening(YD22DDTi) ....... EM-198
Cylinder head gasket selection(YD22DDTi) ... EM-199
Cylinder head(QR20DEQR25DE) ................... EM-67
Cylinder head(YD22DDTi) .............................. EM-196
D
Data link connector ............................ EC-469
, EC-861
Data link connector for Consult ......... EC-104, EC-553,

IDX-7
A
C
D
E
F
G
H
I
J
K
L B
IDX
ALPHABETICAL INDEX
Park/neutral position switch (A/T) .................... AT-100
Park/neutral position switch (M/T) ..................... MT-13
PCV (positive crankcase ventilation) . EC-478, EC-870
PGC/V - Wiring diagram .................................. EC-267
PHASE - Wiring diagram ................... EC-255, EC-648
Pilot bushing replacement - See Pilot
converter(QR20DEQR25DE) ........................... EM-82
Piston assembly(QR20DEQR25DE) .............. EM-103
Piston pin inspection(QR20DEQR25DE) ......... EM-99
Piston pin inspection(YD22DDTi) .................... EM-222
Piston ring inspection(QR20DEQR25DE) ...... EM-100
Piston ring inspection(YD22DDTi) ................... EM-227
Piston to bore clearance(QR20DEQR25DE) . EM-103
Piston to bore clearance(YD22DDTi) .............. EM-230
PNP/SW - Wiring diagram EC-375, EC-727, EC-1183,
EC-1480
PNPSW1 - Wiring diagram .............................. EC-817
POS - Wiring diagram ........................ EC-248, EC-640
POWER - Wiring diagram .................................... PG-3
Power antenna .................................................. AV-41
Power door lock .................................................. BL-22
Power seat ......................................................... SE-10
Power socket ................................................... WW-29
Power steering fluid level ......................... PS-6, MA-44
Power steering gear .......................................... PS-13
Power steering oil pressure switch EC-1186, EC-1483
Power steering oil pump .................................... PS-24
Power steering pressure (PSP) sensor .......... EC-274,
EC-656
Power supply routing ........................................... PG-2
Power window .................................................. GW-40
Precations for Leak detection dye ................... ATC-12
Precautions (General) .......................................... GI-4
Pre-delivery inspection ........................................ MA-4
Pressure plate - See Clutch cover ..................... CL-14
PRGVLV - Wirng diagram ............................... EC-810
Propeller shaft ..................................................... PR-3
Propeller shaft on vehicle service ........................ PR-3
PS/SEN - Wiring diagram .................. EC-275, EC-657
PST/SW - Wiring diagram ............. EC-1187, EC-1484
Q
Quick-glow system ........................ EC-1169
, EC-1457
R
R/FOG - Wiring diagram ..................................... LT-56
Radiator(QR20DEQR25DE) ................ CO-12, CO-14
Radiator(YD22DDTi) ............................ CO-34, CO-38
Radio - See Audio ............................................... AV-4
Rear air spoiler .................................................... EI-30
Rear bumper ........................................................ EI-17
Rear disc brake ................................................. BR-32
Rear door ............................................................ BL-18
Rear fog lamp ..................................................... LT-56
Rear panel finisher .............................................. EI-31
Rear seat ........................................................... SE-31
Rear seat belt ...................................................... SB-4
Rear side window ............................................. GW-13
Rear suspension ............................................... RSU-5
Rear washer .................................................... WW-14
Rear window defogger ...................................... GW-17
Rear wiper ....................................................... WW-14
Refrigerant connection precaution ..................... ATC-5
Refrigerant discharging evacuating charging ATC-141
Refrigerant general precaution .......................... ATC-5
Refrigerant lines ............................................. ATC-141
Refrigerant pressure sensor EC-451, EC-843, ATC-18,
ATC-94
, ATC-157
Refrigeration cycle ........................................... ATC-18
Release bearing (clutch) .................................... CL-12
Removal and installation (A/T) ......................... AT-413
Removal and installation (Transfer) ................... TF-55
Reverse idler shaft (M/T) ...................... MT-20, MT-25
Reverse lamp switch (M/T) - See Back-up lamp switch
(M/T) .................................................................. MT-13
Reverse main gear (M/T) ...................... MT-20, MT-25
Rocker cover(QR20DEQR25DE) .................... EM-42
Rocker cover(YD22DDTi) ............................... EM-168
Room lamp ......................................................... LT-76
Room lamp - See Interior lamp ........................... LT-76
ROOM/L - Wiring diagram .................................. LT-76
RP/SEN - Wiring diagram .................. EC-452, EC-844
RRO2 - Wiring diagram ..................... EC-777, EC-793
S
S/LOCK - Wiring diagram ....................... BL-24
, BL-45
S/SIG - Wiring diagram .................. EC-1199, EC-1496
SCTC/V - Wiring diagram ............. EC-1095, EC-1129,
EC-1136
, EC-1141, EC-1146, EC-1384, EC-1418,
EC-1424
, EC-1429, EC-1434
SEAT - Wiring diagram ...................................... SE-11
Seat belt inspection .......................................... MA-45
Seat belt pre-tensioner disposal ..................... SRS-42
Seat belt, front ..................................................... SB-3
Seat belt, rear ...................................................... SB-4
Seat, front .......................................................... SE-24
Seat, rear ........................................................... SE-31
Self-diagnosis (Transfer) ................................... TF-30
SEN/PW - Wiring diagram ................. EC-369, EC-721
Sheft warning system ...................................... BL-104
SHIFT - Wiring diagram ................................... AT-399
Shift control components (M/T) ............. MT-22, MT-27
Shift fork (M/T) ...................................... MT-22, MT-27
Shift lever ........................................................... MT-14
Shift lock system .............................................. AT-398
Shift schedule .................................................. AT-530
Shift solenoid valve A (A/T) ............................. AT-128
Shift solenoid valve B (A/T) ............................. AT-128
Side air bag (satellite) sensor ......................... SRS-39
Side window - See Rear side window ............... GW-13
Spark plug replacement(QR20DEQR25DE) ... MA-26
Spark plug(QR20DEQR25DE) ........................ EM-30
Specification value ............................. EC-119, EC-566
Speedometer ........................................................ DI-4
Spiral cable ..................................................... SRS-33