2003 NISSAN ALMERA N16 Electronic Repair Manual

Page 3009 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Both High- and Low-pressure Sides are Too Low.NJHA0151S04
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure sides
are too low.
AC353A
There is a big tempe

Both High- and Low-pressure Sides are Too Low.NJHA0151S04
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high- and low-pressure sides
are too low.
AC353A
There is a big temperature
difference between receiver
drier outlet and inlet. Outlet
temperature is extremely
low.
Liquid tank inlet and
expansion valve are
frosted.Liquid tank inside is slightly
clogged.Replace liquid tank.
Check lubricant for con-
tamination.
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 receiver drier and
expansion valve is clogged.Check and repair malfunc-
tioning parts.
Check lubricant for con-
tamination.
Expansion valve and liquid
tank are warm or only cool
when touched.Low refrigerant charge
"
Leaking fittings or compo-
nentsCheck refrigerant for leaks.
Refer to “Checking Refriger-
ant Leaks”, HA-92.
There is a big temperature
difference 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.
Check lubricant for con-
tamination.
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 con-
tamination.
Air flow volume is not enough
or is too low.Evaporator is frozen. Replace compressor.
Low-pressure Side Sometimes Becomes Negative.NJHA0151S05
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side sometimes
becomes negative.
AC354A
Air conditioning system
does not function and
does not cyclically cool the
compartment air.
The system constantly
functions for a certain
period of time after com-
pressor 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.Drain water from refriger-
ant or replace refrigerant.
Replace liquid tank.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSESMANUAL
Insufficient Cooling (Cont’d)
HA-73

Page 3010 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Low-pressure Side Becomes Negative.NJHA0151S06
Gauge indication Refrigerant cycle Probable cause Corrective action
Low-pressure side becomes nega-
tive.
AC362A
Liquid tank or front/rear side
of expans

Page 3011 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Insufficient Heating
TROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT HEATING=NJHA0152SYMPTOM: Insufficient heating.
INSPECTION FLOW
RHA283I
*1: LC-17 (QG),
LC-43 (YD)
*2: LC-12 (QG),
LC-37 (YD)*3: LC-15

Page 3012 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Noise
TROUBLE DIAGNOSIS PROCEDURE FOR NOISE=NJHA0158SYMPTOM:
Noise
INSPECTION FLOW
RHA925H
*1: HA-84
*2: HA-85
*3: HA-79*4: EM-11 (QG),
EM-11 (YD)*5: LC-17 (QG),
LC-43 (YD)
TROUBLE DIAGNOSESMANUAL
Noi

Page 3013 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual HFC-134a (R-134a) Service ProcedureNJHA0159SETTING OF SERVICE TOOLS AND EQUIPMENTNJHA0159S01Discharging RefrigerantNJHA0159S0101WARNING:
Avoid breathing A/C refrigerant and lubricant vapor or mist. Ex

Page 3014 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual SHA383F
*1: HA-79
*2: HA-92*3: HA-93 *4: HA-67
SERVICE PROCEDUREMANUAL
HFC-134a (R-134a) Service Procedure (Cont’d)
HA-78

Page 3015 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual Maintenance of Lubricant Quantity in
Compressor
NJHA0160The lubricant in the compressor circulates through the system with
the refrigerant. Add lubricant to compressor when replacing any
component or

Page 3016 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual 4 CHECK ANY PART
Is there any part to be replaced? (Evaporator, condenser, liquid tank or incase there is evidence of a large amount of
lubricant leakage.)
YesorNo
Yes GO TO HA-81.
No Carry out the A/

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