2004 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2004  Factory Service Manual EC-82Revision: August 2007
TROUBLE DIAGNOSIS
2004 QX56
10. CHECK IGNITION TIMING
1. Run engine at idle.
2. Check ignition timing with a timing light.
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
11 .

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INFINITI QX56 2004  Factory Service Manual TROUBLE DIAGNOSIS
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Revision: August 20072004 QX56
15. CHECK IGNITION TIMING AGAIN
1. Run engine at idle.
2. Check ignition timing with a timing light.
OK or NG
OK >>INSP

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INFINITI QX56 2004  Factory Service Manual EC-84Revision: August 2007
TROUBLE DIAGNOSIS
2004 QX56
Symptom Matrix ChartUBS00H00
SYSTEM — BASIC ENGINE CONTROL SYSTEM
SYMPTOM
Reference 
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITAT

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INFINITI QX56 2004  Factory Service Manual TROUBLE DIAGNOSIS
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1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
Vehi

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INFINITI QX56 2004  Factory Service Manual EC-86Revision: August 2007
TROUBLE DIAGNOSIS
2004 QX56
Air Air duct
55555 5EM-14
Air cleanerEM-14
Air leakage from air duct
(Mass air flow sensor — electric 
throttle control actuator)
5555EM-14
Ele

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INFINITI QX56 2004  Factory Service Manual TROUBLE DIAGNOSIS
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1 - 6: The numbers refer to the order of inspection.Cooling Radiator/Hose/Radiator filler cap
55555 55 45CO-10
Thermost

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INFINITI QX56 2004  Factory Service Manual EC-88Revision: August 2007
TROUBLE DIAGNOSIS
2004 QX56
Engine Control Component Parts LocationUBS00H01
BBIA0449E

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INFINITI QX56 2004  Factory Service Manual TROUBLE DIAGNOSIS
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