sensor NISSAN TEANA 2003 Service Manual

ATC-110
IN-VEHICLE SENSOR

IN-VEHICLE SENSORPFP:27720
Removal and InstallationBJS000H8
REMOVAL
1. Remove instrument driver lower panel. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove mounting screw, and then remove in-vehicle sensor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA3291E

SUNLOAD SENSOR
ATC-111
C
D
E
F
G
H
I
K
L
MA
B
AT C

SUNLOAD SENSORPFP:27721
Removal and InstallationBJS000H9
REMOVAL
1. Remove sunload sensor garnish.
2. Disconnect sunload sensor connector, and then remove sunload
sensor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA3279E

ATC-112
INTAKE SENSOR

INTAKE SENSORPFP:27723
Removal and InstallationBJS000HA
REMOVAL
1. Remove low-pressure pipe 2 and high-pressure pipe 2. Refer to ATC-140, "Removal and Installation of
Low-pressure Pipe 2 and High-pressure Pipe 2" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
2. Slide evaporator to passenger side, and then remove intake
sensor.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sen-
sor can be located in the same position.

Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

When recharging refrigerant, check for leaks.
RJIA3281E

HEATER & COOLING UNIT ASSEMBLY
ATC-121
C
D
E
F
G
H
I
K
L
MA
B
AT C

Disassembly and AssemblyBJS000HI
1. Adaptor duct 2. Heater & cooling case (left) 3. Mode door motor bracket
4. Mode door motor 5. Instrument lower cover bracket 6. Aspirator
7. Aspirator duct 8. Sub harness 9. Heater core
10. Foot duct (right) 11. Heater core cover 12. Air mix door motor (passenger side)
13. Evaporator cover 14. Bolt 15. Low-pressure pipe 2
16. High-pressure pipe 2 17. Cooler pipe grommet 18. Heater & cooling case (right)
19. Insulator 20. Air mix door motor (driver side) 21. Defroster door lever
22. Max. cool door lever 23. Main link 24. Ventilator door lever
25. Ventilator door link 26. Foot duct (left) 27. Ventilator door
28. Heater pipe support 29. Intake sensor 30. Intake sensor bracket
31. Adaptor cover 32. O-ring 33. Expansion valve
34. Evaporator 35. Defroster door 36. Defroster door link
SJIA1657E

DUCTS AND GRILLES
ATC-129
C
D
E
F
G
H
I
K
L
MA
B
AT C

Removal of Rear Ventilator Ducts
1. Remove center console. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove mounting clips, and then remove rear ventilator duct 2.
3. Remove mounting clips and screw, and then remove rear venti-
lator duct 1.
Removal of Foot Ducts
1. Remove instrument driver lower panel. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove instrument lower cover (driver side)
3. Remove mounting screws, and then remove foot duct (left).
4. Remove blower unit. Refer to AT C - 11 3 , "
BLOWER UNIT" .
5. Remove intake sensor connector from foot duct.
6. Remove mounting screws, and then remove foot duct (right).
RJIA3315E
RJIA3316E
RJIA3317E
RJIA3318E

ATC-140
REFRIGERANT LINES

Removal and Installation of Low-pressure Pipe 2 and High-pressure Pipe 2BJS000HU
REMOVAL
1. Set the temperature (passenger side) at 18°C, and then disconnect the battery cable from the negative
terminal.
2. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
3. Remove extension cowl top lower panel. Refer to EI-21, "
COWL TOP" .
4. Remove mounting bolt from low-pressure pipe 1 bracket.
5. Remove high-pressure pipe 1 from vehicle clips.
6. Disconnect one-touch joints of low-pressure pipe 1, and high-
pressure pipe 1.
a. Set a disconnector [high-pressure side (SST: 9253089908), low-
pressure side (SST: 9253089916)] on A/C piping.
b. Slide a disconnector toward vehicle front until it clicks.
c. Slide A/C piping toward vehicle front and disconnect it.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
7. Remove blower unit. Refer to AT C - 11 3 , "
BLOWER UNIT" .
8. Remove mounting screws, and then remove air mix door motor
(passenger side).
9. Disconnect air mix door motor connector.
10. Remove intake sensor connector from foot duct (right).
11. Remove mounting screws, and then remove foot duct (right).
12. Remove mounting screws, and then remove heater core cover.
RJIA3322E
RJIA3300E
RJIA3308E
RJIA3323E

ATC-142
REFRIGERANT LINES

Removal and Installation of CondenserBJS000HV
REMOVAL
1. Use a refrigerant collecting equipment (for HFC-134a) to discharge the refrigerant.
2. Remove air duct (inlet). Refer to EM-17, "
AIR CLEANER AND AIR DUCT" (QR engine) or EM-131, "AIR
CLEANER AND AIR DUCT" (VQ engine).
3. Remove front grille. Refer to EI-20, "
FRONT GRILLE" .
4. Remove battery. Refer to SC-4, "
BATTERY" .
5. Remove mounting bolts, and then remove battery tray.
6. Remove mounting bolt from high-pressure flexible hose and
high-pressure pipe1.
7. Disconnect high-pressure flexible hose and high-pressure pipe
1 from condenser.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
8. Disconnect refrigerant pressure sensor connector.
9. Remove mounting bolts from condenser.
10. Remove condenser bracket.
11. Remove engine room harness clips from radiator core upper
support.
12. Remove engine room harness mounting resin nuts.
13. Remove radiator upper mount.
RJIA2301E
RJIA1853E
RJIA2233E
RJIA3326E

ATC-144
REFRIGERANT LINES

INSTALLATION
Install liquid tank, and then install liquid tank bracket on condenser.
CAUTION:

Make sure liquid tank bracket is securely installed at protru-
sion of condenser. (Make sure liquid tank bracket does not
move to a position below center of liquid tank.)

Replace O-rings of A/C piping with new ones, and then
apply compressor oil to it when installing it.

When recharging refrigerant, check for leaks.
Removal and Installation of Refrigerant Pressure SensorBJS000HX
REMOVAL
1. Remove condenser. Refer to ATC-142, "Removal and Installation of Condenser" .
2. Remove refrigerant pressure sensor from condenser.
CAUTION:
When working, be careful not to damage the condenser
fins.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Apply compressor oil to O-ring of refrigerant pressure sensor when installing it.
Removal and Installation of EvaporatorBJS000HY
REMOVAL
1. Remove low-pressure pipe 2 and high-pressure pipe 2. Refer to ATC-140, "Removal and Installation of
Low-pressure Pipe 2 and High-pressure Pipe 2" .
CAUTION:
Cap or wrap the joint of the pipe with suitable material such as vinyl tape to avoid the entry of air.
2. Slide evaporator, and then remove it from heater & cooling unit
assembly.
3. Remove intake sensor from evaporator, and then remove evap-
orator.
RJIA1861E
RJIA2237E
RJIA3281E

REFRIGERANT LINES
ATC-145
C
D
E
F
G
H
I
K
L
MA
B
AT C

INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of A/C piping with new ones, and then apply compressor oil to it when installing
it.

Female-side piping connection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.

Insert piping securely until a click is heard.

After piping connection is completed, pull male-side piping by hand to make sure that connection
does not come loose.

O-rings are different from low-pressure pipe 1 (high-pressure pipe 2) and low-pressure pipe 2
(high-pressure pipe 3).

Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sen-
sor can be located in the same position.

When recharging refrigerant, check for leaks.
Removal and Installation of Expansion ValveBJS000HZ
REMOVAL
1. Remove evaporator. Refer to ATC-144, "Removal and Installation of Evaporator" .
2. Remove mounting bolts, and then remove expansion valve.
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:

Replace O-rings of evaporator with new ones, and then apply compressor oil to it when installing
it.

O-rings are different from low-pressure pipe 1 (high-pressure pipe 1) and low-pressure pipe 2
(high-pressure pipe 2).

When recharging refrigerant, check for leaks.
RJIA3327E

ATC-146
REFRIGERANT LINES

Checking for Refrigerant LeaksBJS000JF
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage may indicate an area of refrigerant leakage. Allow
extra inspection time in these areas when using either an electrical leak detector or fluorescent dye leak
detector (SST: J-42220).
If dye is observed, confirm the leak with an electrical leak detector. It is possible a prior leak was repaired and
not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electrical leak detector, move the probe along the suspected
leak area at 1 to 2 inches per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electrical leak detector probe slower and closer to the suspected leak area will improve the
chances of finding a leak.
Checking System for Leaks Using the Fluorescent Leak DetectorBJS000JG
1. Check A/C system for leaks using the UV lamp and safety goggles (SST: J-42220) in a low sunlight area
(area without windows preferable). Illuminate all components, fittings and lines. The dye will appear as a
bright green/yellow area at the point of leakage. Fluorescent dye observed at the evaporator drain open-
ing indicates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner (SST: J-43872) to prevent future
misdiagnosis.
4. Perform a system performance check and verify the leak repair with an approved electrical leak detector.
NOTE:
Other gases in the work area or substances on the A/C components, for example, anti-freeze, windshield
washer fluid, solvents and lubricants, may falsely trigger the leak detector. Make sure the surfaces to be
checked are clean.
Clean with a dry cloth or blow off with shop air.
Do not allow the sensor tip of the detector to contact with any substance. This can also cause false readings
and may damage the detector.
Dye InjectionBJS000JH
(This procedure is only necessary when recharging the system or when the compressor has seized and was
replaced.)
1. Check A/C system static (at rest) pressure. Pressure must be at least 345 kPa (3.45 bar, 3.52 kg/cm
2 , 50
psi).
2. Pour one bottle (1/4 ounce / 7.4 cc) of the A/C refrigerant dye into the injector tool (SST: J-41459).
3. Connect the injector tool to the A/C low-pressure side service valve.
4. Start engine and switch A/C ON.
5. When the A/C operating (compressor running), inject one bottle (1/4 ounce / 7.4 cc) of fluorescent dye
through the low-pressure service valve using dye injector tool (SST: J-41459) (refer to the manufacture's
operating instructions).
6. With the engine still running, disconnect the injector tool from the service valve.
CAUTION:
Be careful the A/C system or replacing a component, pour the dye directly into the open system
connection and proceed with the service procedures.
7. Operate the A/C system for a minimum of 20 minutes to mix the dye with the system oil. Depending on the
leak size, operating conditions and location of the leak, it may take from minutes to days for the dye to
penetrate a leak and become visible.
8. Attach a blue label as necessary.