Page 489 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-85
[QR (WITH EURO-OBD)]
C
D
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F
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EC
1 - 6: The numbers refer to the order of inspection.
(continued on next page)Mass air flow sensor circuit 11222 22 2EC-151
Engi NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-85
[QR (WITH EURO-OBD)]
C
D
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H
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J
K
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EC
1 - 6: The numbers refer to the order of inspection.
(continued on next page)Mass air flow sensor circuit 11222 22 2EC-151
Engi](/manual-img/5/57403/w960_57403-488.png)
TROUBLE DIAGNOSIS
EC-85
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
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EC
1 - 6: The numbers refer to the order of inspection.
(continued on next page)Mass air flow sensor circuit 11222 22 2EC-151
Engine coolant temperature sensor circuit 11222322312EC-165
Throttle position sensor circuit 12 22222 2EC-171
,
EC-231
,
EC-368
,
EC-370
,
EC-424
Accelerator pedal position sensor circuit 3212 2EC-372
,
EC-409
,
EC-416
,
EC-432
Heated oxygen sensor 1 circuit1232 22 2EC-179
,
EC-186
,
EC-196
,
EC-322
,
EC-328
Knock sensor circuit 2 2 3EC-245
Crankshaft position sensor (POS) circuit 2 2EC-250
Camshaft position sensor (PHASE) circuit 2 2EC-257
Vehicle speed signal circuit 2 3 3 3EC-276
Power steering pressure sensor circuit 2 3 3 3 3EC-278
ECM 22333333333EC-283,
EC-286
Intake valve timing control solenoid valve cir-
cuit332 13223 3EC-290
PNP switch circuit 3 33333 3EC-398
Refrigerant pressure sensor circuit 2 3 3 3 3 4EC-474
Electrical load signal circuit 3 3 3 3EC-480
Air conditioner circuit223333333 3 2AT C - 3 4,
MTC-3
ESP/TCS/ABS CONTROL UNIT
(models with ESP)
ABS actuator and electric unit (control unit)
(models without ESP)4BRC-12
,
BRC-60
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
Page 490 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual EC-86
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETON NISSAN X-TRAIL 2005 Service Repair Manual EC-86
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETON](/manual-img/5/57403/w960_57403-489.png)
EC-86
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
SYSTEM — ENGINE MECHANICAL & OTHER
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 tank
5
5FL-11
Fuel piping 5 5 5 5 5 5FL-3, EM-
34
Vapor lock—
Valve deposit
5 555 55 5—
Poor fuel (Heavy weight gaso-
line, Low octane)—
Air Air duct
55555 5EM-16
Air cleaner
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)
5555
Electric throttle control actuator
EM-18
Air leakage from intake manifold/
Collector/Gasket
Cranking Battery
111111 11SC-4
Alternator circuitSC-13
Starter circuit 3SC-23
Signal plate/Flywheel/Drive plate 6EM-89
PNP switch 4MT-15 or
AT- 1 0 0
Engine Cylinder head
55555 55 5EM-70
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-89
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Page 491 of 4555
![NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-87
[QR (WITH EURO-OBD)]
C
D
E
F
G
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MA
EC
1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nismTiming chain
55555 55 5EM-46
CamshaftEM-56
Intake val NISSAN X-TRAIL 2005 Service Repair Manual TROUBLE DIAGNOSIS
EC-87
[QR (WITH EURO-OBD)]
C
D
E
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EC
1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nismTiming chain
55555 55 5EM-46
CamshaftEM-56
Intake val](/manual-img/5/57403/w960_57403-490.png)
TROUBLE DIAGNOSIS
EC-87
[QR (WITH EURO-OBD)]
C
D
E
F
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MA
EC
1 - 6: The numbers refer to the order of inspection.Va l v e
mecha-
nismTiming chain
55555 55 5EM-46
CamshaftEM-56
Intake valve timing controlEM-46
Intake valve
3EM-70
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-25
, EX-
2Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery
55555 55 52EM-27
, LU-
13 , LU-10 ,
LU-5
Oil level (Low)/Filthy oilLU-7
Cooling Radiator/Hose/Radiator filler cap
55555 55 25CO-12
Thermostat 5CO-23
Water pumpCO-21
Water galleryCO-7
Cooling fan 5CO-19
Coolant level (low)/Contaminated
coolantCO-9
NATS (Nissan Anti-theft System) 1 1EC-64 or
BL-108
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
Page 492 of 4555
EC-88
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
Engine Control Component Parts LocationEBS010LU
PBIB1978E
Page 493 of 4555
TROUBLE DIAGNOSIS
EC-89
[QR (WITH EURO-OBD)]
C
D
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F
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EC
PBIB1979E
Page 494 of 4555
EC-90
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
PBIB1980E
Page 495 of 4555
TROUBLE DIAGNOSIS
EC-91
[QR (WITH EURO-OBD)]
C
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PBIB1997E
Page 496 of 4555
EC-92
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
PBIB2887E