2003 NISSAN X-TRAIL Electronic Repair Manual

Page 2649 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
MTC-13
C
D
E
F
G
H
I
K
L
MA
B
MTC
4.CHECK POWER SUPPLY FOR INTAKE DOOR MOTOR
Reconnect heater control panel connector.
OK or NG
OK >> Replace intake door motor.
NG >> GO TO 5.
5.CHEC

Page 2650 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual MTC-14
TROUBLE DIAGNOSIS
INSPECTION FLOW
DIAGNOSTIC PROCEDURE
SYMPTOM: Blower motor operation is malfunctioning.
*1 Blower motor circuitMTC-13*2 Operational checkMTC-7*3 Symptom tableMTC-3
*4 Operatio

Page 2651 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
MTC-15
C
D
E
F
G
H
I
K
L
MA
B
MTC
1.CHECK POWER SUPPLY FOR BLOWER MOTOR
Disconnect blower motor harness connector.
OK or NG
OK >> GO TO 2.
NG >> Check power supply circuit and 15A fu

Page 2652 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual MTC-16
TROUBLE DIAGNOSIS
5.CHECK FAN RESISTOR
Refer toMTC-17, "
Blower Fan Resistor".
OK or NG
OK >> GO TO 6.
NG >> Replace fan resistor.
6.CHECK CIRCUIT CONTINUITY BETWEEN FAN RESISTOR AND HEATER CON

Page 2653 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual TROUBLE DIAGNOSIS
MTC-17
C
D
E
F
G
H
I
K
L
MA
B
MTC
COMPONENT INSPECTION
Blower Motor
Confirm smooth rotation of the blower motor.
lEnsure that there are no foreign particles inside the intake unit.
F

Page 2654 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual MTC-18
TROUBLE DIAGNOSIS
INSPECTION FLOW
*1 QR20DE:CO-9, "Changing Engine
Coolant",YD22DDTi:
CO-30, "
Changing Engine Coolant"
*2 QR20DE:CO-13, "CHECKING RADI-
AT O R C A P", YD22DTi:CO-34,
"Checking

Page 2655 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual CONTROLLER
MTC-19
C
D
E
F
G
H
I
K
L
MA
B
MTC
CONTROLLERPFP:27500
Removal and InstallationEJS001F7
1. Remove the mode control cable and air mix control cable from
heater unit.
2. Remove the cluster lid

Page 2656 of 3066

NISSAN X-TRAIL 2003  Electronic Repair Manual MTC-20
BLOWER MOTOR
BLOWER MOTOR
PFP:27226
Removal and InstallationEJS000XK
1. Remove the blower unit.
2. Separate the blower unit.
3. Remove the cooling hose, blower fan resistor and blower fan.
RJIA