2006 INFINITI FX35 Service Manual

Page 521 of 4462

INFINITI FX35 2006  Service Manual TROUBLE DIAGNOSIS ATC-75
C 
D  E 
F 
G  H 
I 
K  L 
M  A 
B
AT C 
Revision: 2006 December 2006 FX35/FX45
SYSTEM DESCRIPTION 
Component Parts
Intake door control system components are:
Unified meter a

Page 522 of 4462

INFINITI FX35 2006  Service Manual ATC-76
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
COMPONENT DESCRIPTION 
Intake Door Motor
The intake door motor is attached to the blower unit. It rotates so that 
air is drawn from inl

Page 523 of 4462

INFINITI FX35 2006  Service Manual TROUBLE DIAGNOSIS ATC-77
C 
D  E 
F 
G  H 
I 
K  L 
M  A 
B
AT C 
Revision: 2006 December 2006 FX35/FX45
Blower Motor CircuitNJS000E8
SYMPTOM: Blower motor operation is malfunctioning.
INSPECTION FLOW

Page 524 of 4462

INFINITI FX35 2006  Service Manual ATC-78
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
SYSTEM DESCRIPTION 
Component Parts
Fan speed control system components are:
Unified meter and A/C amp.
A/C LAN system (PBR built-in m

Page 525 of 4462

INFINITI FX35 2006  Service Manual TROUBLE DIAGNOSIS ATC-79
C 
D  E 
F 
G  H 
I 
K  L 
M  A 
B
AT C 
Revision: 2006 December 2006 FX35/FX45
Starting Fan Speed Control
Start up from COLD SOAK Condition (Automatic mode) 
In a cold start

Page 526 of 4462

INFINITI FX35 2006  Service Manual ATC-80
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
1. CHECK POWER SUPPLY FOR BLOWER MOTOR 
1. Disconnect blower motor connector. 
2. Turn ignition switch ON.
3. Check voltage between blow

Page 527 of 4462

INFINITI FX35 2006  Service Manual TROUBLE DIAGNOSIS ATC-81
C 
D  E 
F 
G  H 
I 
K  L 
M  A 
B
AT C 
Revision: 2006 December 2006 FX35/FX45
4. CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL 
1. Reconnect blower motor connector and unif

Page 528 of 4462

INFINITI FX35 2006  Service Manual ATC-82
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
Magnet Clutch CircuitNJS000E9
SYMPTOM: Magnet clutch does not engage.
INSPECTION FLOW
*1 ATC-112, "Intake Sensor Circuit"*2 ATC-103, "Am