Page 1161 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
EC-811
[QR20(WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/F NISSAN X-TRAIL 2001 Service Repair Manual TROUBLE DIAGNOSIS
EC-811
[QR20(WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
SYSTEM — ENGINE MECHANICAL & OTHER
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/F](/manual-img/5/57405/w960_57405-1160.png)
TROUBLE DIAGNOSIS
EC-811
[QR20(WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
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-9
Fuel piping 5 5 5 5 5 5FL-3,EM-
32
Vapor lock—
Valve deposit
555555 5—
Poor fuel (Heavy weight gaso-
line, Low octane)—
Air Air duct
55555 5EM-14
Air cleanerEM-14
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)
5555EM-14
Electric throttle control actuatorEM-16
Air leakage from intake manifold/
Collector/GasketEM-16
Cranking Battery
111111 11SC-3
Alternator circuitSC-12
Starter circuit 3SC-20
Signal plate 6EM-73
PNP switch
4MT-12 or
AT- 11 5
Engine Cylinder head
55555 55 5EM-59
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-73
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Va l v e
mecha-
nismTiming chain
55555 55 5EM-37
CamshaftEM-46
Intake valve
3EM-59
Exhaust valve
Page 1162 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-812
[QR20(WITH EURO-OBD)]
TROUBLE DIAGNOSIS
1 - 6: The numbers refer to the order of inspection.Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-24
,EX-
2Three way catalyst
Lubrica-
tionO NISSAN X-TRAIL 2001 Service Repair Manual EC-812
[QR20(WITH EURO-OBD)]
TROUBLE DIAGNOSIS
1 - 6: The numbers refer to the order of inspection.Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-24
,EX-
2Three way catalyst
Lubrica-
tionO](/manual-img/5/57405/w960_57405-1161.png)
EC-812
[QR20(WITH EURO-OBD)]
TROUBLE DIAGNOSIS
1 - 6: The numbers refer to the order of inspection.Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-24
,EX-
2Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
55555 55 52EM-26
,LU-
9 , LU-10 ,
LU-13
Oil level (Low)/Filthy oilLU-7
Cooling Radiator/Hose/Radiator filler cap
55555 55 25CO-11
Thermostat 5CO-20
Water pumpCO-18
Water galleryCO-7
Cooling fan 5CO-11
Coolant level (low)/Contaminated
coolantCO-9
NATS (Nissan Anti-theft System) 1 1EC-790 or
BL-80
ESP/TCS/ABS control unit 2 2EC-1049 o r
BRC-64
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 1163 of 3833
TROUBLE DIAGNOSIS
EC-813
[QR20(WITH EURO-OBD)]
C
D
E
F
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K
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MA
EC
Engine Control Component Parts LocationEBS00MSW
PBIB0484E
Page 1164 of 3833
EC-814
[QR20(WITH EURO-OBD)]
TROUBLE DIAGNOSIS
PBIB0485E
Page 1165 of 3833
TROUBLE DIAGNOSIS
EC-815
[QR20(WITH EURO-OBD)]
C
D
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F
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MA
EC
PBIB0486E
Page 1166 of 3833
EC-816
[QR20(WITH EURO-OBD)]
TROUBLE DIAGNOSIS
PBIB0487E
Page 1167 of 3833
TROUBLE DIAGNOSIS
EC-817
[QR20(WITH EURO-OBD)]
C
D
E
F
G
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MA
EC
Circuit DiagramEBS00MSX
TBWA0052E
Page 1168 of 3833
EC-818
[QR20(WITH EURO-OBD)]
TROUBLE DIAGNOSIS
TBWA0053E