Page 1185 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-71
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Air Air duct
55555 5EM-15
Air cleanerEM-15
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator) NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
EC-71
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Air Air duct
55555 5EM-15
Air cleanerEM-15
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)](/manual-img/5/57402/w960_57402-1184.png)
TROUBLE DIAGNOSIS
EC-71
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Air Air duct
55555 5EM-15
Air cleanerEM-15
Air leakage from air duct
(Mass air flow sensor —electric
throttle control actuator)
5555EM-15
Electric throttle control actuatorEM-17
Air leakage from intake manifold/
Collector/GasketEM-17
Cranking Battery
111111 11SC-3
Alternator circuitSC-12
Starter c irc uit 3SC-21
Signal plate 6EM-64
PNP switch
4MT-13or
AT- 1 3 5
Engine Cylinder head
55555 55 5EM-52
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-64
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Va l v e
mecha-
nismTiming chain
55555 55 5EM-43
CamshaftEM-33
Intake valve
3EM-52
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/
Gasket
55555 55 5EM-22
,EX-
2Three way catalyst
Lubrica-
tionOil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler
55555 55 52EM-24
,LU-
9,LU-10,
LU-13
Oil level (Low)/Filthy oilLU-7
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 1186 of 3066
EC-72
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TROUBLE DIAGNOSIS
1 - 6: The numbers refer to the order of inspection.Cooling Radiator/Hose/Radiator filler cap
55555 55 25CO-12
Thermostat 5CO-21
Water pum pCO-19
Water galleryCO-7
Cooling fan 5CO-12
Coolant level (low)/Contaminated
coolantCO-9
NATS (Nissan Anti-theft System) 1 1EC-48or
BL-70
ESP/TCS/ABS control unit 2 2EC-310or
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 1187 of 3066
TROUBLE DIAGNOSIS
EC-73
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Engine Control Component Parts LocationEBS00BMM
PBIB0484E
Page 1188 of 3066
EC-74
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TROUBLE DIAGNOSIS
PBIB0485E
Page 1189 of 3066
TROUBLE DIAGNOSIS
EC-75
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PBIB0486E
Page 1190 of 3066
EC-76
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TROUBLE DIAGNOSIS
PBIB0487E
Page 1191 of 3066
TROUBLE DIAGNOSIS
EC-77
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Circuit DiagramEBS00BMN
TBWA0052E
Page 1192 of 3066
EC-78
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TROUBLE DIAGNOSIS
TBWA0053E