2003 NISSAN ALMERA N16 flow

Insufficient Cooling
TROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT COOLING=NJHA0148SYMPTOM:
Insufficient Cooling.
INSPECTION FLOW
NHA390
*1: HA-43
*2: HA-71
*3: HA-67*4: HA-35
*5: HA-34
*6: HA-82*7: EM-11 (QG),
EM-11 (YD)
*8: EC-324 or EC-596 (QG),
EC-130 (YD)
TROUBLE DIAGNOSESMANUAL
Insufficient Cooling
HA-66

TROUBLE DIAGNOSES FOR UNUSUAL PRESSURENJHA0151Whenever system’s high and/or low side pressure is unusual, diagnose using a manifold gauge. The marker
above the gauge scale in the following tables indicates the standard (usual) pressure range. Since the stan-
dard (usual) pressure, however, differs from vehicle to vehicle, refer toHA-70 (“Ambient air temperature-to-
operating pressure table”).
Both High- and Low-pressure Sides are Too High.NJHA0151S01
Gauge indication Refrigerant cycle Probable cause Corrective action
Both high and low-pressure sides
are too high.
AC359A
Pressure is reduced soon
after water is splashed on
condenser.Excessive refrigerant charge
in refrigeration cycleReduce refrigerant until speci-
fied pressure is obtained.
Air suction by cooling fan is
insufficient.Insufficient condenser cooling
performance
"
1. Condenser fins are
clogged.
2. Improper fan rotation of
cooling fanClean condenser.
Check and repair cooling
fan as necessary.
Low-pressure pipe is not
cold.
When compressor is
stopped high-pressure
value quickly drops by
approximately 196 kPa (2.0
bar, 2 kg/cm
2, 28 psi). It
then decreases gradually
thereafter.Poor heat exchange in con-
denser
(After compressor operation
stops, high pressure
decreases too slowly.)
"
Air in refrigeration cycleEvacuate repeatedly and
recharge system.
Engine tends to overheat. Engine cooling systems mal-
function.Check and repair each
engine cooling system.
An area of the low-pres-
sure pipe is colder than
areas near the evaporator
outlet.
Plates are sometimes cov-
ered with frost.Excessive liquid refrigerant
on low-pressure side
Excessive refrigerant dis-
charge flow
Expansion valve is open a
little compared with the
specification.
"
1. Improper expansion valve
installation
2. Improper expansion valve
adjustmentReplace expansion valve.
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-71

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

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 expansion valve’s pipe is
frosted or dewed.High-pressure side is closed
and refrigerant does not flow.
"
Expansion valve or liquid
tank is frosted.Leave the system at rest
until no frost is present. Start
it again to check whether or
not the problem is caused by
water or foreign particles.
If water is the cause, ini-
tially cooling is okay. Then
the water freezes causing
a blockage. Drain water
from refrigerant or replace
refrigerant.
If due to foreign particles,
remove expansion valve
and remove particles with
dry and compressed air
(not shop air).
If either of the above
methods cannot correct
the problem, replace
expansion valve.
Replace liquid tank.
Check lubricant for con-
tamination.
TROUBLE DIAGNOSESMANUAL
Insufficient Cooling (Cont’d)
HA-74

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 (QG),
LC-40 (YD)
*4: LC-17 (QG),
LC-43 (YD)*5: HA-35
*6: HA-34
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
SC
EL
IDX
TROUBLE DIAGNOSESMANUAL
Insufficient Heating
HA-75

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
Noise
HA-76

RESTRAINT SYSTEM
SECTION
RS
CONTENTS
SEAT BELTS<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[....3
Precautions <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[..............3
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
″AIR BAG″AND″SEAT BELT PRE-TENSIONER″
........3
PRECAUTION FOR SEAT BELT SERVICE..................3
Maintenance <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............4
Front Seat Belt.............................................................5
REMOVAL AND INSTALLATION/4-DOOR SEDAN.......5
REMOVAL AND INSTALLATION/5-DOOR
HATCHBACK
<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011001100110011>7
REMOVAL AND INSTALLATION/3-DOOR
HATCHBACK
<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011001100110011>9
Rear Seat Belt <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11[........ 11
REMOVAL AND INSTALLATION/4-DOOR SEDAN
WITH 2-POINT TYPE REAR CENTER SEAT BELT
.... 11
REMOVAL AND INSTALLATION/4-DOOR SEDAN
WITH 3-POINT TYPE REAR CENTER SEAT BELT
....13
REMOVAL AND INSTALLATION/HATCHBACK
WITH 3–POINT TYPE REAR CENTER SEAT
............15
ISO Fix Child Restraint Anchor .................................18
REMOVAL AND INSTALLATION...............................18
Tether Anchor Plate ...................................................19
REMOVAL AND INSTALLATION...............................19
SUPPLEMENTAL RESTRAINT SYSTEM (SRS).........20
Precautions <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............20
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
″AIR BAG″AND″SEAT BELT PRE-TENSIONER″
......20
PRECAUTIONS FOR SRS″AIR BAG″AND″SEAT
BELT PRE-TENSIONER″SERVICE
...........................20
WIRING DIAGRAMS AND TROUBLE DIAGNOSIS.....20
Preparation <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011[............21
SPECIAL SERVICE TOOLS......................................21
COMMERCIAL SERVICE TOOL................................22
SRS Configuration .....................................................22
Seat Belt Pre-tensioner with Load Limiter.................23
Built-in Type Side Air Bag..........................................23
SRS Component Parts Location ...............................24
Maintenance Items ....................................................25
Diagnosis Sensor Unit ...............................................26
REMOVAL AND INSTALLATION...............................26
Front Seat Belt Pre-tensioner ....................................27
REMOVAL AND INSTALLATION...............................27
Side Air Bag (Satellite) Sensor ..................................27
REMOVAL AND INSTALLATION...............................27
Driver Air Bag Module and Spiral Cable ...................29
REMOVAL AND INSTALLATION/WITH 4-SPOKE
STEERING WHEEL
.................................................29
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[29
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011>1
Front Passenger Air Bag Module ..............................32
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[32
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011>3
Front Side Air Bag Module ........................................33
REMOVAL<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[33
INSTALLATION<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011001100110011>4
Disposal of Air Bag Module and Seat Belt Pre-
tensioner <0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011[..............35
CHECKING DEPLOYMENT TOOL.............................35
DEPLOYMENT PROCEDURES FOR AIR BAG
MODULE (OUTSIDE OF VEHICLE)
...........................36
DEPLOYMENT PROCEDURES FOR SEAT BELT
PRE-TENSIONER (OUTSIDE OF VEHICLE)
..............39
DEPLOYMENT OF AIR BAG MODULE AND SEAT
BELT PRE-TENSIONER WHILE MOUNTED IN
VEHICLE
<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11001100110011001100110011001100110011001100110011[..39
DISPOSING OF AIR BAG MODULE AND SEAT
BELT PRE-TENSIONER
...........................................40
Trouble Diagnoses Introduction.................................41
DIAGNOSIS FUNCTION...........................................41
DIAGNOSIS MODE FOR CONSULT-II.......................41
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITH CONSULT-II
<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
11>2
HOW TO CHANGE SELF-DIAGNOSIS MODE
WITHOUT CONSULT-II
............................................42
HOW TO ERASE SELF-DIAGNOSIS RESULTS.........43
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ..................................................44
INFORMATION FROM CUSTOMER..........................44
PRELIMINARY CHECK............................................44
WORK FLOW<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
110011001100110011001100110011>5
Wiring Diagram - SRS -.............................................46
SEDAN MODELS<0011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100110011001100
1100110011>7
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
BT
HA
SC
EL
IDX

WORK FLOW=NJRS0044S03NOTE:
Seat belt pre-tensioner malfunction is indicated by “AIR BAG” warning lamp.
SRS799
*1: RS-44
*2: RS-49*3: RS-50
*4: RS-60*5: RS-54
*6: RS-65
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
BT
HA
SC
EL
IDX
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
How to Perform Trouble Diagnoses for Quick and Accurate Repair (Cont’d)
RS-45