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![NISSAN X-TRAIL 2005 Service Repair Manual EC-1018
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TE NISSAN X-TRAIL 2005 Service Repair Manual EC-1018
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TE](/manual-img/5/57403/w960_57403-1421.png)
EC-1018
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE) Malfunction indicator illuminates.
Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Fuel pump 5 5 5 5 1 1 —
Fuel injector 3 3 3 4 4 4 1 1E C - 111 8
Glow control system1EC-1305
Engine body 3 3 3 3 1 3EM-222
Fuel transport pumpEC-1331
EGR system3EC-1186
Air cleaner and duct3EM-142
Fuel rail pressure relief valve 3 3 3 3 1 1EC-1071
ENGINE CONTROLFuel pump circuit 4 4 4 4 1 1EC-1270
Fuel injector circuit 1 1 1 1 1 1 1 1E C - 111 8
Mass air flow sensor circuit 1 1 1EC-1083
Engine coolant temperature circuit 1 1 1 1 1EC-1093
Vehicle speed signal circuit11LAN-4
Accelerator pedal position sensor circuit 1 1 1EC-1099
Fuel rail pressure sensor circuit11E C - 111 0
Page 1423 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1019
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1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1157
Camshaft NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
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ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1157
Camshaft](/manual-img/5/57403/w960_57403-1422.png)
TROUBLE DIAGNOSIS
EC-1019
[YD (WITH EURO-OBD)]
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1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1157
Camshaft position sensor circuit11EC-1169
Turbocharger boost sensor circuit 1 1EC-1151
Turbocharger boost control solenoid valve cir-
cuit11EC-1061
Start signal circuitEC-1345
Ignition switch circuitEC-1046
Power supply for ECM circuit11EC-1046
Cooling fan relay circuit 2EC-1124
EGR volume control valve circuit 1EC-1193
Glow relay circuit1EC-1182
ECM relay (Self-shutoff) circuit1EC-1245
ECM, connector circuit 2 2 2 2 2 2 2 2 2 2 2EC-1227,EC-
1303
NATS (Nissan Anti-theft System)1EC-1001
SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR DEAD BATTERY (UNDER CHARGE) Malfunction indicator illuminates. Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Page 1793 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1389
[YD (WITHOUT EURO-OBD)]
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SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE OV NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-1389
[YD (WITHOUT EURO-OBD)]
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SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE OV](/manual-img/5/57403/w960_57403-1792.png)
TROUBLE DIAGNOSIS
EC-1389
[YD (WITHOUT EURO-OBD)]
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SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR DEAD BATTERY (UNDER CHARGE) Malfunction indicator illuminates. Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Fuel pump 5 5 5 5 1 1 —
Fuel injector 33344411EC-1474
Glow control system1EC-1643
Engine body 3 3 3 3 1 3EM-222
Fuel transport pumpEC-1682
EGR system3EC-1651
Air cleaner and duct3EM-142
Fuel rail pressure relief valve 3 3 3 3 1 1EC-1434
ENGINE CONTROLFuel pump circuit 4 4 4 4 1 1EC-1609
Fuel injector circuit 1 1 1 1 1 1 1 1EC-1474
Mass air flow sensor circuit 1 1 1EC-1438
Engine coolant temperature circuit 1 1 1 1 1EC-1449
Vehicle speed signal circuit11LAN-4
Accelerator pedal position sensor circuit 1 1 1EC-1455
Fuel rail pressure sensor circuit11EC-1466
Page 1794 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-1390
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1512
Camshaft position sensor circui NISSAN X-TRAIL 2005 Service Repair Manual EC-1390
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1512
Camshaft position sensor circui](/manual-img/5/57403/w960_57403-1793.png)
EC-1390
[YD (WITHOUT EURO-OBD)]
TROUBLE DIAGNOSIS
1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROLCrankshaft position sensor circuit 1 1 1 1EC-1512
Camshaft position sensor circuit11EC-1525
Turbocharger boost sensor circuit 1 1EC-1506
Turbocharger boost control solenoid valve cir-
cuit11EC-1659
Start signal circuitEC-1696
Ignition switch circuitEC-1415
Power supply for ECM circuit11EC-1415
Cooling fan relay circuit 2EC-1480
EGR volume control valve circuit 1EC-1651
Glow relay circuit1EC-1643
ECM relay (Self-shutoff) circuit1EC-1584
ECM, connector circuit22222222222EC-1566,EC-
1641
NATS (Nissan Anti-theft System)1EC-1373
SYSTEM — Basic engine control systemSYMPTOM
Reference page
ROUGH IDLE/HUNTING IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE) Malfunction indicator illuminates.
Can be detected by CONSULT-II?
BLACK SMOKE WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Page 2035 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
EC-1631
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DTC P2146, P2149 FUEL INJECTOR POWER SUPPLYPFP:16600
Component DescriptionEBS0124X
The fuel inje NISSAN X-TRAIL 2005 Service Repair Manual DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
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DTC P2146, P2149 FUEL INJECTOR POWER SUPPLYPFP:16600
Component DescriptionEBS0124X
The fuel inje](/manual-img/5/57403/w960_57403-2034.png)
DTC P2146, P2149 FUEL INJECTOR POWER SUPPLY
EC-1631
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DTC P2146, P2149 FUEL INJECTOR POWER SUPPLYPFP:16600
Component DescriptionEBS0124X
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the cylinder. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the fuel injector remains open.
The ECM controls the injection pulse duration based on engine fuel
needs.
CONSULT-II Reference Value in Data Monitor ModeEBS0124Y
Specification data are reference values.
On Board Diagnosis LogicEBS01250
DTC Confirmation ProcedureEBS01251
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION
Before performing the following procedure, confirm the ambient temperature is more than -20°C (-4°F).
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If DTC is detected, go to EC-1634, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go to EC-1634, "
Diagnostic Procedure" .
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
Engine: After warming up
Shift lever: Neutral position
Idle speedNo-load 0.68 - 0.78 msec
Blower fan switch: ON
Rear window defogger switch: ON0.78 - 0.88 msec
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2146
2146No. 1 and 4 cylinder fuel
injector power supply cir-
cuit openAn improper voltage signal is sent to ECM
through No. 1 and 4 cylinder fuel injector.
Harness or connectors
(The fuel injector circuit is open.)
P2149
2149No. 2 and 3 cylinder fuel
injector power supply cir-
cuit openAn improper voltage signal is sent to ECM
through No. 2 and 3 cylinder fuel injector.
SEF817Y
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AT-5
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SERVICE DATA AND SPECIFICATIONS (SDS) .... 530
General Specifications ......................................... 530
Shift Schedule ...................................................... 530
Stall Revolution .................................................... 531
Line Pressure ....................................................... 531
Control Valves ...................................................... 531
Accumulator ......................................................... 532
Clutch and Brakes ................................................ 533
Final Drive ............................................................ 535
Planetary Carrier and Oil Pump ........................... 536
Input Shaft ............................................................ 537
Reduction Pinion Gear ......................................... 537Band Servo ...........................................................538
Output Shaft .........................................................538
Bearing Retainer ...................................................538
Total End Play .......................................................538
Reverse Clutch End Play ......................................539
Removal and Installation ......................................539
Shift Solenoid Valves ............................................539
Solenoid Valves ....................................................539
A/T Fluid Temperature Sensor ..............................540
Revolution Sensor ................................................540
Dropping Resistor .................................................540
Page 2300 of 4555

AT-36
OVERALL SYSTEM
CONTROL OF SHIFT SOLENOID VALVES A AND B
The TCM activates shift solenoid valves A and B according to sig-
nals from the throttle position sensor and revolution sensor to select
the optimum gear position on the basis of the shift schedule memo-
rized in the TCM.
The shift solenoid valve performs simple ON-OFF operation. When
set to “ON”, the drain circuit closes and pilot pressure is applied to
the shift valve.
RELATION BETWEEN SHIFT SOLENOID VALVES A AND B GEAR POSITIONS
CONTROL OF SHIFT VALVES A AND B
Pilot pressure generated by the operation of shift solenoid valves A and B is applied to the end face of shift
valves A and B.
The drawing above shows the operation of shift valve B. When the shift solenoid valve is “ON”, pilot pressure
applied to the end face of the shift valve overcomes spring force, moving the valve upward.
Lock-Up ControlECS00CTE
The torque converter clutch piston in the torque converter is locked to eliminate torque converter slip to
increase power transmission efficiency. The solenoid valve is controlled by an ON-OFF duty signal sent from
the TCM. The signal is converted to an oil pressure signal which controls the torque converter clutch piston.
CONDITIONS FOR LOCK-UP OPERATION
When vehicle is driven in 3rd and 4th gear position, vehicle speed and throttle opening are detected. If the
detected values fall within the lock-up zone memorized in the TCM, lock-up is performed.
SAT008J
Shift solenoid valveGear position
D1 , 21 , 11D2 , 22 , 12D3D4 (O/D) N-P
A ON (Closed) OFF (Open) OFF (Open) ON (Closed) ON (Closed)
B ON (Closed) ON (Closed) OFF (Open) OFF (Open) ON (Closed)
SAT009J
Overdrive control switch ON OFF
Selector lever “D” position
Gear position D
4D3
Vehicle speed sensor More than set value
Throttle position sensor Less than set opening
Closed throttle position switch OFF
A/T fluid temperature sensor More than 40°C (104°F)
Page 2329 of 4555
TROUBLE DIAGNOSIS — BASIC INSPECTION
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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. Refer to AT- 1 6 , "
Checking A/T Fluid" .
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
It 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.
During test, never hold throttle wide open for more than 5
seconds.
SAT647B
SAT513G
SAT775B
Stall revolution:
QR20DE: 2,450 - 2,950 rpm
QR25DE: 2,300 - 2,750 rpm
SAT514G