2006 INFINITI QX56 Factory Service Manual

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INFINITI QX56 2006  Factory Service Manual ATC-64
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Mode Door Motor CircuitEJS003XO
SYMPTOM:
Air outlet does not change.
Mode door motor does not operate normally.
INSPECTION FLOW
*1AT C - 3 0

Page 466 of 3383

INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-65
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AT C
Revision: November 2009 2006 QX56
SYSTEM DESCRIPTION
Component Parts
Mode door control system components are:
Front air control
Mode door motor
P

Page 467 of 3383

INFINITI QX56 2006  Factory Service Manual ATC-66
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
COMPONENT DESCRIPTION
Mode Door Motor
The mode door motor is attached to the heater & cooling unit. It
rotates so that air is discharged from

Page 468 of 3383

INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-67
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Revision: November 2009 2006 QX56
3. CHECK FRONT AIR CONTROL FOR GROUND AND POWER 
1. Press the mode switch to the D/F ( ) mode.
2. Check voltage be

Page 469 of 3383

INFINITI QX56 2006  Factory Service Manual ATC-68
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
7. CHECK PBR REFERENCE VOLTAGE CIRCUIT FOR SHORT TO GROUND
1. Turn ignition switch OFF.
2. Disconnect the front air control harness connector.

Page 470 of 3383

INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-69
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Revision: November 2009 2006 QX56
11 .  CHECK PBR FEEDBACK SIGNAL CIRCUIT FOR SHORT TO GROUND
1. Turn ignition switch OFF.
2. Disconnect front air c

Page 471 of 3383

INFINITI QX56 2006  Factory Service Manual ATC-70
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Air Mix Door Motor CircuitEJS003XP
SYMPTOM:
Discharge air temperature does not change.
Air mix door motor does not operate.
INSPECTION FLOW

Page 472 of 3383

INFINITI QX56 2006  Factory Service Manual TROUBLE DIAGNOSISATC-71
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DE
F
G H
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K L
M A
B
AT C
Revision: November 2009 2006 QX56
SYSTEM DESCRIPTION
Component Parts
Air mix door control system components are:
Front air control.
Air mix door m