2003 NISSAN TEANA sensor

ATC-106
TROUBLE DIAGNOSIS

3. CHECK INTAKE SENSOR
Refer to ATC-106, "
Intake Sensor" .
OK or NG
OK >> 1. Replace unified meter and A/C amp.
2. Go to self-diagnosis AT C - 4 7 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2. Confirm that code No. 20 is displayed.
NG >> 1. Replace intake sensor.
2. Go to self-diagnosis AT C - 4 7 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2. Confirm that code No. 20 is displayed.
4. CHECK CIRCUIT CONTINUITY BETWEEN INTAKE SENSOR AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect unified meter and A/C amp. connector.
3. Check continuity between intake sensor harness connector
M256 terminal 1 and unified meter and A/C amp. harness con-
nector M45 terminal 41.
4. Check continuity between intake sensor harness connector
M256 terminal 1 and ground.
OK or NG
OK >> 1. Replace unified meter and A/C amp.
2. Go to self-diagnosis AT C - 4 7 , "
FUNCTION CONFIRMATION PROCEDURE" and perform self-
diagnosis STEP-2. Confirm that code No. 20 is displayed.
NG >> Repair harness or connector.
COMPONENT INSPECTION
Intake Sensor
After disconnecting intake sensor connector M256, measure resis-
tance between terminals 1 and 2 at sensor side. Refer to the table
below.
If NG, replace intake sensor.1 – 41 : Continuity should exist.
1 – Ground : Continuity should not exist.
RJIA1811E
Temperature °C (°F) Resistance kΩ
−15 (5) 18.63
−10 (14) 14.14
−5 (23) 10.85
0 (32) 8.40
5 (41) 6.57
10 (50) 5.18
15 (59) 4.12
20 (68) 3.30
25 (77) 2.66
30 (86) 2.16
35 (95) 1.77
40 (104) 1.46
45 (113) 1.21
RJIA3282E

AMBIENT SENSOR
ATC-109
C
D
E
F
G
H
I
K
L
MA
B
AT C

AMBIENT SENSORPFP:27722
Removal and InstallationBJS000H7
REMOVAL
1. Remove engine undercover.
2. Disconnect ambient sensor connector, and then remove ambi-
ent sensor.
INSTALLATION
Installation is basically the reverse order of removal.
RJIA2180E

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