sensor NISSAN TIIDA 2007 Service Repair Manual

SELF-DIAGNOSIS FUNCTION
HAC-213
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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SELF-DIAGNOSIS FUNCTION
Front Air Control Self-DiagnosisINFOID:0000000001547321
DESCRIPTION
The self-diagnostic system diagnoses sensors, door motors, blower motor, etc. by system line. Refer to appli-
cable sections (items) for details. Shifting from usual control to the self-diagnostic system is accomplished by
starting the engine (turning the ignition switch ON) and pressing intake switch for at least 5 seconds. The
intake switch must be pressed within 10 seconds after starting the engine (ignition switch is turned ON). This
system will be cancelled by either pressing A/C switch or turning the ignition switch OFF. Shifting from one
step to another is accomplished by means of turning blower control dial, as required.
FUNCTION CONFIRMATION PROCEDURE
1.SET IN SELF-DIAGNOSTIC MODE
1. Set temperature control dial at 22°C (72°.
2. Set mode control dial to B/L or FOOT position.
3. Set blower control dial to OFF position.
4. Turn ignition switch ON.
AWIIA0326GB

HAC-214
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
SELF-DIAGNOSIS FUNCTION
5. Set in self-diagnostic mode as follows. Within 10 seconds after starting engine (ignition switch is turned
ON.), press intake switch for at least 5 seconds.
CAUTION:
If battery voltage drops below 12V during diagnosis STEP-3, door motor speed becomes slower and
as a result, the system may generate an error even when operation is usual. To avoid this, start engine
before performing this diagnosis.
>> GO TO 2.
2.STEP-1: LEDS ARE CHECKED
1. Check rear defogger switch, A/C switch and intake switch LEDs illumination.
2. Check indicator LEDs illumination.
OK or NG
OK >> GO TO 3.
NG >>  Does not illuminate rear defogger switch, A/C switch
and intake switch LEDs illumination. Refer to HAC-
311, "Self-Diagnosis".
3.STEP-2: CHECK TO ADVANCE SELF-DIAGNOSIS STEP-2
Turn blower control dial to AUTO position.
CAUTION:
When switched to STEP-2, LEDs of FRE and REC position blinks for approximately 5 seconds.
Check intake switch (FRE, REC) indicator LEDs illumination
OK >> GO TO 4.
NG >> Replace front air control (Blower control dial is malfunctioning.)
4.CHECK TO RETURN SELF-DIAGNOSIS STEP-1
Turn blower control dial to OFF position.
Return to self
-diagnosis STEP-1?
YES >> GO TO 5.
NO >> Replace front air control (Blower control dial is malfunctioning.)
5.STEP-2: SENSOR CIRCUIT ARE CHECKED
1. Turn blower control dial to AUTO position.
CAUTION:
When switched to STEP-2, LEDs of FRE and REC position blinks for approximately 5 seconds.
2. Check intake switch (FRE, REC) indicator LEDs illumination.
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6.STEP-3: AIR MIX DOOR AND MODE DOOR MOTOR ARE CHECKED
AWIIA0327GB
AWIIA0328GB

HAC-216
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
SELF-DIAGNOSIS FUNCTION
Go to Magnet Clutch Circuit. Refer to HAC-239, "Magnet Clutch Diagnosis Procedure".
9.CHECK MALFUNCTION SENSOR
Refer to the following chart.
*1: Perform self-diagnosis STEP-2 under sunshine.
When performing indoors, aim a light (more than 60W) at sunload
sensor, otherwise LED of rear window defogger switch will illuminate
despite that sunload sensor is functioning properly.
*2: HAC-244, "
Ambient Sensor Diagnosis Procedure".
*3: HAC-247, "
In-Vehicle Sensor Diagnosis Procedure".
*4: HAC-253, "
Intake Sensor Diagnosis Procedure".
*5: HAC-250, "
Sunload Sensor Diagnosis Procedure".
*6: HAC-226, "
Air Mix Door Motor Diagnosis Procedure".
*7: HAC-222, "
Mode Door Motor Diagnosis Procedure".
*8: HAC-230, "
Intake Door Motor Diagnosis Procedure".
In case of a break in the ambient sensor, front air control regards ambient temperature as extreme cold
(approximately –42°C or less) and then start warming.
>> INSPECTION END
10.CHECK MALFUNCTION DOOR MOTOR POSITION SWITCH
Usual: LED for A/C switch and intake switch turn ON.
Unusual: LED for malfunctioning door motor blinks. If unusual condi-
tions are detected in multiple door motor-positions, appropriate
switch LED blink twice respectively.
AWIIA0330ZZ
AWIIA0331GB
SJIA0862E

HAC-218
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
SELF-DIAGNOSIS FUNCTION
 Pressing the rear window defogger switch during STEP-3 will send
a reset signal to air mix door and mode door motor to reset them to
the starting position.
During reset: The rear window defogger switch LED will blink,
(approx. 10 seconds) Intake switch and A/C switch LEDs will blink.
(For approx. 6 seconds)
OK or NG
OK >> INSPECTION END
NG >> Refer to HAC-222, "
Mode Door Motor Diagnosis Procedure" or HAC-226, "Air Mix Door Motor
Diagnosis Procedure".
Front Air Control Self-Diagnosis Code ChartINFOID:0000000001547323
SELF-DIAGNOSTIC CODE CHART
SJIA0865E
SJIA0866E
Code No. Reference page
03 Battery voltage out of range XXXX
30 In-vehicle sensor circuit out of range (low)
HAC-247, "
In-Vehicle Sensor Diagnosis Procedure"31 In-vehicle sensor circuit out of range (high)
40 Ambient sensor circuit short
HAC-244, "
Ambient Sensor Diagnosis Procedure"41 Ambient sensor circuit open
50 Optical sensor (Driver) circuit open or short
HAC-250, "
Sunload Sensor Diagnosis Procedure"52 Optical sensor (Passenger) circuit open or short
56 Intake sensor circuit short
HAC-253, "
Intake Sensor Diagnosis Procedure"57 Intake sensor circuit open
80 CAN bus faultLAN-22, "
Trouble Diagnosis Flow Chart"

MODE DOOR MOTOR
HAC-219
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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COMPONENT DIAGNOSIS
MODE DOOR MOTOR
System DescriptionINFOID:0000000001547326
SYSTEM DESCRIPTION
Component Parts
Mode door control system components are:
 Front air control
 Mode door motor
 In-vehicle sensor
 Ambient sensor
 Sunload sensor
System Operation
The front air control receives data from each of the sensors. When a drive signal is input from front air control
to door motor, a step motor built into the door motor rotates according to the drive signal, and then stops at the
position of target door.
Mode door changes to manual select mode by turning mode control dial of the controller. That allows mode
door to be fixed.
Pressing AUTO switch allows automatic control by front air control, and mode door is fixed in the FOOT posi-
tion by pressing OFF switch.
During automatic operation of mode door, mode door position (VENT, B/L, FOOT) is selected according to the
temperature of blow-off wind calculated by front air control based on the target opening angle of air mix door
and the amount of solar radiation. And only when ambient temperature is extremely low with the mode door in
the FOOT position, D/F is selected and prevents windshield fogging.
AWIIA0333GB

MODE DOOR MOTOR
HAC-221
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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NO >> GO TO 2.
2.PERFORM COMPLETE OPERATIONAL CHECK
Perform a complete operational check and check for any symptoms. Refer to HAC-202, "
Operational Check".
Can a symptom be duplicated?
YES >> Refer to HAC-201, "How to Perform Trouble Diagnosis For Quick And Accurate Repair".
NO >> System OK.
3.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 4.
4.PERFORM SELF-DIAGNOSIS.
Set in Self-diagnostic mode. Refer to HAC-213, "
Front Air Control Self-Diagnosis".
Are any self-diagnosis codes present?
YES >> Repair as necessary.
NO >> GO TO 5.
5. CHECK MODE DOOR OPERATION
Check and verify mode door mechanism for smooth operation in each mode.
YES or NO
YES >> GO TO 6
NO >> Repair as necessary.
6. CHECK AMBIENT SENSOR CIRCUIT
Perform diagnostic procedure for the ambient sensor. Refer to HAC-244, "
Ambient Sensor Diagnosis Proce-
dure".
YES or NO
YES >> GO TO 7
NO >> Repair as necessary.
7. CHECK IN-VEHICLE SENSOR CIRCUIT
Perform diagnostic procedure for the in-vehicle sensor circuit. Refer to HAC-247, "
In-Vehicle Sensor Diagno-
sis Procedure".
YES or NO
YES >> GO TO 8
NO >> Repair as necessary.
8. CHECK SUNLOAD SENSOR CIRCUIT
Perform diagnostic procedure for the sunload sensor circuit. Refer to HAC-250, "
Sunload Sensor Diagnosis
Procedure" .
YES or NO
YES >> GO TO 9
NO >> Repair as necessary.
9. CHECK INTAKE SENSOR CIRCUIT
Perform diagnostic procedure for the intake sensor circuit. Refer to HAC-253, "
Intake Sensor Diagnosis Pro-
cedure".
YES or NO
YES >> GO TO 10
NO >> Repair as necessary.
10. CHECK AIR MIX DOOR MOTOR PBR CIRCUIT
Perform diagnostic procedure for the air mix door circuit. Refer to HAC-226, "
Air Mix Door Motor Diagnosis
Procedure".
YES or NO

HAC-224
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
AIR MIX DOOR MOTOR
AIR MIX DOOR MOTOR
System DescriptionINFOID:0000000001547329
SYSTEM DESCRIPTION
Component Parts
Air mix door control system components are: Front air control
 Air mix door motor
 In-vehicle sensor
 Intake sensor
 Ambient sensor
 Sunload sensor
System Operation
The front air control receives data from each of the sensors. When setting a target temperature by using tem-
perature button, front air control corrects preset temperature, performs an arithmetical operation based on sig-
nals from sensors and determines opening angle of target air mix door.
Air mix door is constantly controlled so as to keep optimum opening angle of air mix door based on target and
present opening angles of air mix door. Air mix door is fixed in the full cold position when preset temperature is
set to 18°C, and full hot position when set to 32°C.
Drive System of Step Motor Type Door Motor
 Motor is actuated in sequence by energizing four drive coils.
 Rotation direction can be changed by changing pattern of excitation.
AWIIA0334GB
SJIA0970E

HAC-226
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
AIR MIX DOOR MOTOR
Set in Self-diagnostic mode. Refer to HAC-213, "Front Air Control Self-Diagnosis".
Are any self-diagnosis codes present?
YES >> Repair as necessary.
NO >> GO TO 5.
6. CHECK AMBIENT SENSOR CIRCUIT
Perform diagnostic procedure for the ambient sensor circuit. Refer to HAC-244, "
Ambient Sensor Diagnosis
Procedure".
YES or NO
YES >> GO TO 7
NO >> Repair as necessary.
7. CHECK IN-VEHICLE SENSOR CIRCUIT
Perform diagnostic procedure for the in-vehicle sensor circuit. Refer to HAC-247, "
In-Vehicle Sensor Diagno-
sis Procedure".
YES or NO
YES >> GO TO 8
NO >> Repair as necessary.
8. CHECK SUNLOAD SENSOR CIRCUIT
Perform diagnostic procedure for the sunload sensor circuit. Refer to HAC-250, "
Sunload Sensor Diagnosis
Procedure".
YES or NO
YES >> GO TO 9
NO >> Repair as necessary.
9. CHECK INTAKE SENSOR CIRCUIT
Perform diagnostic procedure for the intake sensor circuit. Refer to HAC-253, "
Intake Sensor Diagnosis Pro-
cedure".
YES or NO
YES >> GO TO 10
NO >> Repair as necessary.
10. CHECK AIR MIX DOOR MOTOR PBR CIRCUIT
Perform diagnostic procedure for the air mix door motor PBR circuit. Refer to HAC-226, "
Air Mix Door Motor
Diagnosis Procedure".
YES or NO
YES >> GO TO 11
NO >> Repair as necessary.
11 . RECHECK FOR SYMPTOMS
Perform a complete operational check and check for any symptoms. Refer to HAC-202, "
Operational Check".
Does another symptom exist?
YES >> Repair as necessary.
NO >> Replace front air control. Refer to XXXX.
Air Mix Door Motor Diagnosis ProcedureINFOID:0000000001547331
SYMPTOM: Discharge air temperature does not change.
 Air mix door motor does not operate.
DIAGNOSTIC PROCEDURE FOR AIR MIX DOOR MOTOR
1.CHECK AIR MIX DOOR MOTOR

HAC-228
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR
System DescriptionINFOID:0000000001547333
SYSTEM DESCRIPTION
Component Parts
Intake door control system components are: Front air control
 Intake door motor
 In-vehicle sensor
 Ambient sensor
 Sunload sensor
 Intake sensor
ECM
System Operation
The intake door control determines intake door position based on the ambient temperature, the intake air tem-
perature and the in-vehicle temperature. When the DEF, or OFF switches are pushed, the front air control sets
the intake door at the FRESH position.
Intake Door Control Specification
COMPONENT DESCRIPTION
Intake Door Motor
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INTAKE DOOR MOTOR
HAC-229
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The intake door motor is attached to the A/C unit assembly. It rotates
so that air is drawn from inlets set by the front air control Motor rota-
tion is conveyed to a lever which activates the intake door.
Intake Door Motor Component Function CheckINFOID:0000000001547334
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - REC ( )
1. Turn mode control dial to vent mode( ).
2. Press REC ( ) switch. The REC ( )indicator should illuminate.
3. Press REC ( ) switch again. The REC ( ) indicator should go out.
4. Listen for intake door position change (you should hear blower sound change slightly).
Can a symptom be duplicated?
YES >> GO TO 3.
NO >> GO TO 2.
2.PERFORM COMPLETE OPERATIONAL CHECK
Perform a complete operational check and check for any symptoms. Refer to HAC-202, "
Operational Check".
Can a symptom be duplicated?
YES >> Refer to HAC-201, "How to Perform Trouble Diagnosis For Quick And Accurate Repair".
NO >> System OK.
3.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 4.
4.PERFORM SELF-DIAGNOSIS.
Set in Self-diagnostic mode. Refer to HAC-213, "
Front Air Control Self-Diagnosis".
Are any self-diagnosis codes present?
YES >> Repair as necessary.
NO >> GO TO 5.
5. CHECK AMBIENT SENSOR CIRCUIT
Perform diagnostic procedure for the ambient sensor circuit. Refer to HAC-244, "
Ambient Sensor Diagnosis
Procedure".
YES or NO
YES >> GO TO 7
NO >> Repair as necessary.
6. CHECK IN-VEHICLE SENSOR CIRCUIT
Perform diagnostic procedure for the in-vehicle sensor circuit. Refer to XXXX IN-VEHICLE SENS DIAG.
YES or NO
YES >> GO TO 8
NO >> Repair as necessary.
7. CHECK SUNLOAD SENSOR CIRCUIT
SJIA0814E