2005 INFINITI QX4 Factory Service Manual

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INFINITI QX4 2005  Factory Service Manual ATC-54
TROUBLE DIAGNOSIS
Revision: October 2005 2005 QX56
22 Y/R Power supply for BAT - - Battery voltage
23 R/L Illumination + ON Park lamps ON Battery voltage
24 BR Illumination - - Park lamps ON
25

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INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS
ATC-55
C
D
E
F
G
H
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K
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MA
B
AT C
Revision: October 20052005 QX56
A/C System Self-diagnosis FunctionEJS003XK
DESCRIPTION
The self-diagnostic system diagnoses sensors, door motors, b

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INFINITI QX4 2005  Factory Service Manual ATC-56
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
SELF-DIAGNOSIS CODE CHART
Code No. Reference page
02 EE changed by calibrationATC-147, "
FRONT AIR CONTROL"
03 Battery voltage out of rangeSC-4

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INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS
ATC-57
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E
F
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AT C
Revision: October 20052005 QX56
Operational Check (Front)EJS003XL
The purpose of the operational check is to confirm that the system operates prope

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INFINITI QX4 2005  Factory Service Manual ATC-58
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
CHECKING DISCHARGE AIR
1. Press MODE switch four times and the DEF switch.
2. Each position indicator should change shape (on display).
3. Conf

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INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS
ATC-59
C
D
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F
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AT C
Revision: October 20052005 QX56
CHECKING TEMPERATURE INCREASE
1. Rotate temperature control dial clockwise (driver side or passen-
ger side) until

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INFINITI QX4 2005  Factory Service Manual ATC-60
TROUBLE DIAGNOSIS
Revision: October 20052005 QX56
Operational Check (Rear)EJS003XM
The purpose of the operational check is to confirm that the system operates properly.
CHECKING BLOWER
1. Turn

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INFINITI QX4 2005  Factory Service Manual TROUBLE DIAGNOSIS
ATC-61
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: October 20052005 QX56
Power Supply and Ground Circuit for Front Air ControlEJS003XN
SYMPTOM: A/C system does not come on.
INSPECTION FLOW