2006 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2006  Factory Service Manual ATC-88
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
SYSTEM DESCRIPTION
Component Parts
Defroster door control system components are:
Front air control
Defroster door motor
PBR (Built into def

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-89
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DIAGNOSTIC PROCEDURE FOR DEFROSTER DOOR MOTOR
1. CHECK FRONT AIR CONTROL FOR POWER AND GROUND 
1. Turn ignition sw

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INFINITI QX56 2006  Factory Service Manual ATC-90
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
4. CHECK DEFROSTER DOOR MOTOR AND CIRCUITS FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the front air control harness connector.
3. Che

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8. CHECK PBR REFERENCE VOLTAGE AND GROUND CIRCUITS
1. Turn ignition switch OFF.
2. Disconnect the front air contro

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INFINITI QX56 2006  Factory Service Manual ATC-92
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Revision: November 20092006 QX56
12. CHECK PBR FEEDBACK CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect the defroster door motor harness connector and front air co

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Front Blower Motor CircuitEJS003XS
SYMPTOM:
Blower motor operation is malfunctioning.
INSPECTION FLOW
*1 .AT C -

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INFINITI QX56 2006  Factory Service Manual ATC-94
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
SYSTEM DESCRIPTION
Component Parts
Blower speed control system components are:
Front air control
Variable blower control 
Front blower moto

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Blower Speed Compensation - Sunload
When the in-vehicle temperature and the set temperature are very close, the bl