2005 NISSAN X-TRAIL blower

TROUBLE DIAGNOSIS
ATC-99
C
D
E
F
G
H
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K
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MA
B
AT C

*1ATC-146, "Removal and Installation
of Compressor Clutch".*2 AT C - 8 2 , "
Blower Motor Circuit" . *3 QR engine; EM-13, "Checking Drive
Belts" or YD engine; EM-140,
"Checking Drive Belts" .
RJIA3107E

ATC-100
TROUBLE DIAGNOSIS

PERFORMANCE CHART
Test Condition
Testing must be performed as follows:
Test Reading (QR Engine)
Recirculating-to-discharge Air Temperature Table
Ambient Air Temperature-to-operating Pressure Table
Vehicle location Indoors or in the shade (in a well-ventilated place)
Doors Closed
Door windows Open
Hood Open
TEMP. Max. COLD
Mode control dial
(Ventilation) set
Intake switch
(Recirculation) set
Fan (blower) speedMax. speed set
Engine speed Idle speed
Operate the air conditioning system for 10 minutes before taking measurements.
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature at center ventilator
°C (°F) Relative humidity
%Air temperature
°C (°F)
50 - 6025 (77) 10.0 - 11.6 (50 - 53)
30 (86) 13.9 - 16.2 (57 - 61)
35 (95) 17.8 - 21.4 (64 - 71)
60 - 7025 (77) 11.6 - 13.9 (53 - 57)
30 (86) 16.2 - 18.9 (61 - 66)
35 (95) 21.4 - 24.5 (71 - 76)
Ambient air
High-pressure (Discharge side)
kPa (bar, kg/cm
2 , psi)Low-pressure (Suction side)
kPa (bar, kg/cm2 , psi) Relative humidity
%Air temperature
°C (°F)
50 - 7030 (86)980 - 1,180
(9.8 - 11.8, 9.99 - 12.04, 142 - 171)230 - 270
(2.3 - 2.7, 2.35 - 2.75, 33 - 39)
35 (95)1,180 - 1,390
(11.8 - 13.9, 12.04 - 14.18, 171 - 202)260 - 310
(2.6 - 3.1, 2.65 - 3.16, 38 - 45)
40 (104)1,400 - 1,580
(14.0 - 15.8, 14.28 - 16.12, 203 - 229)300 - 350
(3.0 - 3.5, 3.06 - 3.57, 44 - 51)

TROUBLE DIAGNOSIS
ATC-101
C
D
E
F
G
H
I
K
L
MA
B
AT C

Test Reading (YD Engine)
Recirculating-to-discharge Air Temperature Table
Ambient Air Temperature-to-operating Pressure Table
Inside air (Recirculating air) at blower assembly inlet
Discharge air temperature at center ventilator
°C (°F) Relative humidity
%Air temperature
°C (°F)
50 - 6020 (68) 6.5 - 9.0 (44 - 48)
25 (77) 12 - 14 (54 - 57)
30 (86) 15.5 - 18.8 (60 - 66)
35 (95) 20.4 - 24.0 (69 - 75)
60 - 7020 (68) 9.0 - 11.0 (48 - 52)
25 (77) 14.0 - 16.5 (57 - 62)
30 (86) 18.8 - 21.5 (66 - 71)
35 (95) 24 - 27 (75 - 81)
Ambient air
High-pressure (Discharge side)
kPa (bar, kg/cm
2 , psi)Low-pressure (Suction side)
kPa (bar, kg/cm2 , psi) Relative humidity
%Air temperature
°C (°F)
50 - 7020 (68) 765 - 922
(7.65 - 9.22, 7.8 - 9.4, 111 - 134) 177 - 226
(1.77 - 2.26, 1.8 - 2.3, 26 - 33)
25 (77) 922 - 1,020
(9.22 - 10.20, 9.4 - 10.4, 134 - 148) 196 - 245
(1.96 - 2.45, 2.0 - 2.5, 28 - 36)
30 (86)1,177 - 1,451
(11.77 - 14.51, 12.0 - 14.8, 171 - 210) 235 - 284
(2.35 - 2.84, 2.4 - 2.9, 34 - 41)
35 (95)1,373 - 1,667
(13.73 - 16.67, 14.0 - 17.0, 199 - 242) 275 - 333
(2.75 - 3.33, 2.8 - 3.4, 40 - 48)
40 (104)1,618 - 1,961
(16.18 - 19.61, 16.5 - 20.0, 235 - 284)333 - 392
(3.33 - 3.92, 3.4 - 4.0, 48 - 57)

TROUBLE DIAGNOSIS
ATC-103
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F
G
H
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MA
B
AT C

High-pressure Side is Too Low and Low-pressure Side is Too High
Both High- and Low-pressure Sides are Too Low
Gauge indication Refrigerant cycle Probable cause Corrective action
High-pressure side is too low and
low-pressure side is too high.High- and low-pressure sides
become equal soon after com-
pressor operation stops.Compressor pressure opera-
tion is improper.
↓
Damaged inside compressor
packingsReplace compressor.
No temperature difference
between high- and low-pres-
sure sidesCompressor pressure opera-
tion is improper.
↓
Damaged inside compressor
packings.Replace compressor.
AC356A
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure sides
are too low.

There is a big temperature
difference between liquid
tank outlet and inlet. Outlet
temperature is extremely
low.

Liquid tank inlet and expan-
sion valve are frosted.Liquid tank inside is slightly
clogged.

Replace liquid tank.

Check lubricant for contami-
nation.

Temperature of expansion
valve inlet is extremely low
as compared with areas
near liquid tank.

Expansion valve inlet may
be frosted.

Temperature difference
occurs somewhere in high-
pressure sideHigh-pressure pipe located
between liquid tank and
expansion valve is clogged.

Check and repair malfunc-
tioning parts.

Check lubricant for contami-
nation.
Expansion valve and liquid
tank are warm or only cool
when touched.Low refrigerant charge
↓
Leaking fittings or componentsCheck refrigerant for leaks.
Refer to ATC-160, "
Checking
for Refrigerant Leaks" .
There is a big temperature dif-
ference between expansion
valve inlet and outlet while the
valve itself is frosted.Expansion valve closes a little
compared with the specifica-
tion.
↓
1. Improper expansion valve
adjustment
2. Malfunctioning expansion
valve
3. Outlet and inlet may be
clogged.

Remove foreign particles by
using compressed air.

Replace expantion valve.

Check lubricant for contami-
nation.
An area of the low-pressure
pipe is colder than areas near
the evaporator outlet.Low-pressure pipe is clogged
or crushed.

Check and repair malfunc-
tioning parts.

Check lubricant for contami-
nation.
Air flow volume is not enough
or is too low.Evaporator is frozen.

Check intake sensor circuit.
Refer to AT C - 11 7 , "
Intake
Sensor Circuit" (With die-
sel engine)

Replace compressor.

Repair evaporator fins.

Refer to AT C - 8 2 , "Blower
Motor Circuit" .
AC353A

ATC-106
TROUBLE DIAGNOSIS

*1AT C - 6 5 , "Operational Check".*2ATC-59, "FUNCTION CONFIRMA-
TION PROCEDURE", see No. 1.*3ATC-59, "
FUNCTION CONFIRMA-
TION PROCEDURE", see No. 5 to 7.
*4 QR engine: CO-9, "
Changing
Engine Coolant" or YD engine: CO-
32, "Changing Engine Coolant" .*5 QR engine; CO-13, "
Checking Radi-
ator Cap" or YD engine; CO-36,
"Checking Radiator Cap" .*6 QR engine; (WITH EURO-OBD) EC-
165, "DTC P0117, P0118 ECT SEN-
SOR" .
QR engine; (WITHOOUT EURO-
OBD) EC-652, "
DTC P0117, P0118
ECT SENSOR" .
YD engine; (WITH EURO-OBD) EC-
1093, "DTC P0117, P0118 ECT
SENSOR" .
YD engine; (WITHOUT EURO-OBD)
EC-1449, "
DTC P0117, P0118 ECT
SENSOR" .
*7AT C - 5 9 , "
FUNCTION CONFIRMA-
TION PROCEDURE", see No. 9.*8ATC-69, "
LAN System Circuit".*9ATC-82, "Blower Motor Circuit".
*10AT C - 7 6 , "
Air Mix Door Motor Cir-
cuit".

BLOWER UNIT
ATC-125
C
D
E
F
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MA
B
AT C

BLOWER UNITPFP:27200
Removal and InstallationEJS000UL
REMOVAL
1. Remove glove box assembly.
2. Remove glove box cover, instrument passenger lower panel and instrument reinforcement. Refer to IP-11,
"Removal and Installation" .
3. Remove ECM with ECM bracket attached.
4. Remove instrument panel mounting screw.
5. Remove blower unit mounting bolt and screw.
6. Disconnect blower motor connector and fan control amp. con-
nector.
7. Disconnect intake door motor connector and harness clips.
8. Remove blower unit.
CAUTION:
Slide the blower unit toward the right, remove location pins
(2 pieces), then move it downward.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Make sure location pins (2 pieces) are securely installed.
RJIA3161E

ATC-126
BLOWER UNIT

Disassembly and AssemblyEJS000UM
NOTE:
This illustration is for RHD models. The layout for LHD models is symmetrically opposite.
CAUTION:
If retaining tabs are damaged while disassembling blower unit,
use 9 screws (27111-2Y000) to assemble blower unit.
1. Fan control amplifier 2. Screw 3. Cooling hose
4. Blower motor assembly 5. Washer 6. Blower fan
7. Nut 8. Screw 9. Bell mouth
10. Intake door lever 2 11. Intake door lever 1 12. Intake door link
13. Intake door motor 14. Screw 15. Upper case 2
16. Intake door 2 17. Intake door 1 18. Upper case 1
19. Screw 20. Air conditioner filter 21. Filter cover
RJIA0053J
RJIA0097E

BLOWER MOTOR
ATC-127
C
D
E
F
G
H
I
K
L
MA
B
AT C

BLOWER MOTORPFP:27226
Removal and InstallationEJS004GH
REMOVAL
1. Remove blower unit. Refer to ATC-125, "BLOWER UNIT" .
2. Separate blower unit.
3. Remove cooling hose, fan control amp. and blower fan.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
If retaining tabs are damaged while disassembling blower unit,
use 9 screws (27111-2Y000) to assemble blower unit.
RJIA0054E
RJIA0055E
RJIA0097E