2003 NISSAN X-TRAIL Electronic Repair Manual

torque oil filter dashboard warning lights tire type inflation pressure fuel filter

Page 665 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-87
C
D
E
F
G
H
I
K
L
MA
B
AT C
High-pressure Side is Too High and Low-pressure Side is Too Low.
High-pressure Side is Too Low and Low-pressure Side is Too High.
Gauge indication

Page 666 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual ATC-88
TROUBLE DIAGNOSIS
Both High- and Low-pressure Sides are Too Low.
Low-pressure Side Sometimes Becomes Negative.
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and

ATC-88
TROUBLE DIAGNOSIS
Both High- and Low-pressure Sides are Too Low.
Low-pressure Side Sometimes Becomes Negative.
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure sides
are too low.
lThere is a big temperature
difference between receiver
drier outlet and inlet. Outlet
temperature is extremely
low.
lLiquid tank inlet and expan-
sion valve are frosted.Liquid tank inside is slightly
clogged.
lReplace desiccant assem-
bly.
lCheck lubricant for contami-
nation.
lTemperature of expansion
valve inlet is extremely low
as compared with areas
near liquid tank.
lExpansion valve inlet may
be frosted.
lTemperature difference
occurs somewhere in high-
pressure sideHigh-pressure pipe located
between receiver drier and
expansion valve is clogged.
lCheck and repair malfunc-
tioning parts.
lCheck 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 Checking Refrigerant
Leaks,AT C - 1 4 0
.
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 thermal
valve
3. Outlet and inlet may be
clogged.
lRemove foreign particles by
using compressed air.
lCheck 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.
lCheck and repair malfunc-
tioning parts.
lCheck lubricant for contami-
nation.
Air flow volume is not enough
or is too low.Evaporator is frozen.
lCheck intake sensor circuit.
lReplace compressor.
AC353A
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side sometimes
becomes negative.
lAir conditioning system
does not function and does
not cyclically cool the com-
partment air.
lThe system constantly func-
tions for a certain period of
time after compressor is
stopped and restarted.Refrigerant does not dis-
charge cyclically.
¯
Moisture is frozen at expan-
sion valve outlet and inlet.
¯
Water is mixed with refriger-
ant.
lDrain water from refrigerant
or replace refrigerant.
lReplace desiccant assy.
AC354A

Page 667 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-89
C
D
E
F
G
H
I
K
L
MA
B
AT C
Low-pressure Side Becomes Negative.
Insufficient HeatingEJS001H7
SYMPTOM: Insufficient heating
Gauge indication Refrigerant cycle Probable cause Co

Page 668 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual ATC-90
TROUBLE DIAGNOSIS
INSPECTION FLOW
*1 Operational checkAT C - 5 1*6 Self-diagnosisAT C -4 2, see No.14. *10 Thermostat,CO-21QR engine;CO-
42YD engine
*2 Self-diagnosisAT C -4 2
, see No.1. *7 LA

Page 669 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-91
C
D
E
F
G
H
I
K
L
MA
B
AT C
NoiseEJS001H8
SYMPTOM: Noise
INSPECTION FLOW

Page 670 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual ATC-92
TROUBLE DIAGNOSIS
Self-diagnosis
EJS001H9
Symptom: Self-diagnosis can not be performed.
INSPECTION FLOW
Memory FunctionEJS001HA
Symptom: Memory function does not operate.
*1ATC-129, "Removal an

Page 671 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
ATC-93
C
D
E
F
G
H
I
K
L
MA
B
AT C
INSPECTION FLOW
Ambient Sensor CircuitEJS001HB
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor is attached on the hood lock stay. It detect

Page 672 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual ATC-94
TROUBLE DIAGNOSIS
DIAGNOSTIC PROCEDURE
SYMPTOM: Ambient sensor circuit is open or shorted. (21 or -21 is
indicated on auto amp. As a result of conducting Self-diagnosis
STEP 2.)
1.CHECK VOLTAGE

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