2006 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2006  Factory Service Manual EC-102Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
Vacuum Hose DrawingUBS00L07
Refer to EC-23, "System Diagram"  for Vacuum Control System.
PBIB2052E

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISEC-103
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Revision: November 2009 2006 QX56
Circuit DiagramUBS00L08
BBWA2125E

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INFINITI QX56 2006  Factory Service Manual EC-104Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
BBWA2126E

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISEC-105
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Revision: November 2009 2006 QX56
ECM Harness Connector Terminal LayoutUBS00L09
ECM Terminals and Reference ValueUBS00L0A
PREPARATION
1. ECM is locate

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INFINITI QX56 2006  Factory Service Manual EC-106Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
3LThrottle control motor relay 
power supply [Ignition switch: ON] BATTERY VOLTAGE
(11 - 14V)
4 L/W Throttle control motor (Close) [Ignition s

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISEC-107
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Revision: November 2009 2006 QX56
14 YCamshaft position sensor 
(PHASE) [Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle chang

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INFINITI QX56 2006  Factory Service Manual EC-108Revision: November 2009
TROUBLE DIAGNOSIS
2006 QX56
25 O/GHeated oxygen sensor 2 
heater (bank 2) [Engine is running]
Engine speed: Below 3,600 rpm after the 
following conditions are met.
–E

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISEC-109
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Revision: November 2009 2006 QX5647 YSensor power supply
(Throttle position sensor) [Ignition switch: ON]
Approximately 5V
48 SB Sensor power supply
(