2006 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2006  Factory Service Manual ATC-104
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Trouble Diagnosis Procedure For Rear Blower Motor (1 - 4 Speed)
SYMPTOM:
Rear blower motor does not rotate when rear blower control dial (fr

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-105
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Revision: November 2009 2006 QX56
1. DIAGNOSTIC PROCEDURE
Blower motor rotates normally at each speed.
OK or NG
OK >> Inspection End.
NG >> 1. Does

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INFINITI QX56 2006  Factory Service Manual ATC-106
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
6. CHECK REAR BLOWER MOTOR RELAY (COIL SIDE) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect fuse block (J/B) connector M39.

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-107
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Revision: November 2009 2006 QX56
10. CHECK REAR BLOWER MOTOR RELAY (SWITCH SIDE) POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect f

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INFINITI QX56 2006  Factory Service Manual ATC-108
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
15. CHECK REAR BLOWER MOTOR GROUND CIRCUIT TO REAR BLOWER MOTOR RESISTOR
1. Turn ignition switch OFF.
2. Disconnect rear blower motor and rea

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INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-109
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Revision: November 2009 2006 QX56
18. CHECK REAR BLOWER SWITCH (FRONT)
Refer to  AT C - 11 0 ,  "
Rear Blower Switch (Front)" .
OK or NG
OK >> GO T

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INFINITI QX56 2006  Factory Service Manual ATC-110
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
COMPONENT INSPECTION
Rear Blower Motor Relay
Check circuit continuity between terminals by supplying 12 volts and
ground to coil side termina

Page 512 of 3383

INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-111
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Revision: November 2009 2006 QX56
Rear Blower Motor
Check that there are no foreign particles inside the intake unit.
Apply 12 volts to terminal 2