2003 NISSAN X-TRAIL Service Repair Manual

Page 3473 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual TROUBLE DIAGNOSIS
ATC-77
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
SYSTEM DESCRIPTION
Component Parts
Air mix door control system components are:
Auto amp.
Air mix door motor (LCU)
A/C LAN system (PBR built-in

Page 3474 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual ATC-78
TROUBLE DIAGNOSIS
 
COMPONENT DESCRIPTION
Air Mix Door Motor
The air mix door motor is attached to the heater & cooling unit. It
rotates so that the air mix door is opened or closed to a positi

Page 3475 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual TROUBLE DIAGNOSIS
ATC-79
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
Intake Door Motor CircuitEJS004YM
SYMPTOM:
Intake door does not change.
Intake door motor does not operate normally.
INSPECTION FLOW
*1ATC-65,

Page 3476 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual ATC-80
TROUBLE DIAGNOSIS
 
SYSTEM DESCRIPTION
Component Parts
Intake door control system components are:
Auto amp.
Intake door motor (LCU)
A/C LAN system (PBR built-in air mix door motor, mode door

Page 3477 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual TROUBLE DIAGNOSIS
ATC-81
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
COMPONENT DESCRIPTION
Intake Door Motor
The intake door motor is attached to the intake unit. It rotates so that
air is drawn from inlets set by

Page 3478 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual ATC-82
TROUBLE DIAGNOSIS
 
Blower Motor CircuitEJS004YN
SYMPTOM:
Blower motor operation is malfunctioning.
Blower motor operation is malfunctioning under out of starting fan speed control.
INSPECTIO

Page 3479 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual TROUBLE DIAGNOSIS
ATC-83
C
D
E
F
G
H
I
K
L
MA
B
AT C
 
SYSTEM DESCRIPTION
Component Parts
Fan speed control system components are:
Auto amp.
A/C LAN system (PBR built-in air mix door motor, mode doo

Page 3480 of 4179

NISSAN X-TRAIL 2003  Service Repair Manual ATC-84
TROUBLE DIAGNOSIS
 
Starting Fan Speed Control
Start Up from COLD SOAK Condition (Automatic mode)
In a cold start up condition where the engine coolant temperature is below 56°C (133°F), the