Page 3433 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-100
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
7.STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED
1. Press temperature control switch (UP: ).
2. Press (DEF) NISSAN TIIDA 2007 Service Repair Manual HAC-100
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
7.STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED
1. Press temperature control switch (UP: ).
2. Press (DEF)](/manual-img/5/57395/w960_57395-3432.png)
HAC-100
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
7.STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED
1. Press temperature control switch (UP: ).
2. Press (DEF) switch. Code No. of each door motor test is
indicated on the display.
>> GO TO 8.
8.CHECK ACTUATORS
Refer to HAC-94, "
Discharge Air Flow" and confirm discharge air flow, air temperature, blower motor voltage
and compressor operation.
Checks must be made visually, by listening to any noise, or by touching air outlets with your hand, etc. for
improper operation.
OK or NG
OK >> GO TO 9.
NG >> Air outlet does not change.
Go to Mode Door Motor Circuit. Refer to HAC-109, "
Mode Door Motor Diagnosis Procedure".
Intake door does not change.
Go to Intake Door Motor Circuit. Refer to HAC-116, "
Intake Door Motor Diagnosis Procedure".
Blower motor operation is malfunctioning.
Go to Blower Motor Circuit. Refer to HAC-120, "
Front Blower Motor Diagnosis Procedure".
Magnet clutch does not engage.
Go to Magnet Clutch Circuit. Refer to HAC-125, "
Magnet Clutch Diagnosis Procedure".
Discharge air temperature does not change.
Go to Air Mix Door Motor Circuit. Refer to HAC-112, "
Air Mix Door Motor Diagnosis Procedure".
9.STEP-5: TEMPERATURE OF EACH SENSOR IS CHECKED
1. Press temperature control switch (UP: ).
2. Code No. 5 appears on the display.
>> GO TO 10.
10.CHECK AMBIENT SENSOR
RHA495A
Code No. 414243444546
Mode door position VENT B/L 1 B/L 2 FOOT D/F DEF
Intake door position REC REC 20% FRE 80% FRE FRE FRE
Air mix door position FULL COLD FULL COLD 50% 50% FULL HOT FULL HOT
Blower motor voltage 5V 10.5V 8.5V 8.5V 8.5V Battery voltage
Compressor ON ON ON OFF OFF ON
Blower motor ON signal 12V 12V 12V 1V 1V 12V
Page 3434 of 5883
![NISSAN TIIDA 2007 Service Repair Manual SELF-DIAGNOSIS FUNCTION
HAC-101
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Press (DEF) switch one time. Temperature detected by ambient
sensor is indica NISSAN TIIDA 2007 Service Repair Manual SELF-DIAGNOSIS FUNCTION
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Press (DEF) switch one time. Temperature detected by ambient
sensor is indica](/manual-img/5/57395/w960_57395-3433.png)
SELF-DIAGNOSIS FUNCTION
HAC-101
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Press (DEF) switch one time. Temperature detected by ambient
sensor is indicated on the display.
NOTE:
If temperature shown on display greatly differs from actual tempera-
ture, check sensor circuit first, then inspect sensor.
OK or NG
OK >> GO TO 11.
NG >> Go to Ambient Sensor Circuit. Refer to HAC-130, "
Ambi-
ent Sensor Diagnosis Procedure".
11 .CHECK IN-VEHICLE SENSOR
Press (DEF) switch second time. Temperature detected by in-
vehicle sensor is indicated on the display.
NOTE:
If temperature shown on display greatly differs from actual tempera-
ture, check sensor circuit first, then inspect sensor.
OK or NG
OK >> GO TO 12.
NG >> Go to In-vehicle Sensor Circuit. Refer to HAC-133, "
In-
Vehicle Sensor Diagnosis Procedure".
12.CHECK INTAKE SENSOR
Press (DEF) switch third time. Temperature detected by intake
sensor is indicated on the display.
NOTE:
If temperature shown on display greatly differs from actual tempera-
ture, check sensor circuit first, then inspect sensor.
OK or NG
OK >> 1. Turn ignition switch OFF or AUTO switch ON.
2. INSPECTION END
NG >> Go to Intake Sensor Circuit. Refer to HAC-139, "
Intake
Sensor Diagnosis Procedure".
13.CHECK MALFUNCTIONING SENSOR
Refer to the following chart for malfunctioning code No.
(If two or more sensors malfunction, corresponding code No. blink respectively twice.)
*1: Perform self-diagnosis STEP-2 under sunshine.
When performing indoors, aim a light (more than 60W) at sunload sensor, otherwise code No.25 will indicate
despite that sunload sensor is functioning properly.
*2: HAC-130, "
Ambient Sensor Diagnosis Procedure".
*3: HAC-133, "
In-Vehicle Sensor Diagnosis Procedure".
*4: HAC-139, "
Intake Sensor Diagnosis Procedure".
*5: HAC-136, "
Sunload Sensor Diagnosis Procedure".
SJIA0744E
SJIA0746E
SJIA0748E
Code No. Malfunctioning sensor (Including circuits) Reference page
21 /
AUTO 21Ambient sensor *2
22 /
AUTO 22In-vehicle sensor *3
24 /
AUTO 24Intake sensor *4
25 /
AUTO 25 Sunload sensor *1*5
26 /
AUTO 26Intake door motor PBR *6
Page 3435 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-102
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
*6: HAC-116, "Intake Door Motor Diagnosis Procedure".
>> INSPECTION END
14.CHECK MALFUNCTIONING DOOR MOTOR POSIT NISSAN TIIDA 2007 Service Repair Manual HAC-102
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
*6: HAC-116, "Intake Door Motor Diagnosis Procedure".
>> INSPECTION END
14.CHECK MALFUNCTIONING DOOR MOTOR POSIT](/manual-img/5/57395/w960_57395-3434.png)
HAC-102
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
*6: HAC-116, "Intake Door Motor Diagnosis Procedure".
>> INSPECTION END
14.CHECK MALFUNCTIONING DOOR MOTOR POSITION SWITCH
Air mix and/or mode door motor is/are malfunctioning.
Door motor corresponding to the DTC
DTC for an inoperative harness
(If two or more air mix or mode doors are out of order, corresponding code numbers blink respectively twice.)
*1: If air mix door motor harness connector is disconnected, the following display pattern will appear.
31→32→33→34→Return to 31
*2: If mode door motor harness connector is disconnected, the following display pattern will appear.
35→36→37→38→Return to 35
*3: HAC-112, "
Air Mix Door Motor Diagnosis Procedure".
*4: HAC-109, "
Mode Door Motor Diagnosis Procedure".
NOTE:
If all four terminals of each door motor show an open circuit, there
is probably a disconnected connector or an open circuit in actuator
drive power supply harness.
If a short circuit occurs in the harness between terminal for each
door motor and drive signal, although it cannot be detected by self-
diagnosis, the door motor will vibrate when it operate.
Door Motor Starting Position Reset
SJIA0752E
Code No.*1 *2 31, 32, 33, 34 35, 36, 37, 38
Corresponding door motor Air mix door Mode door
Corresponding door motor Air mix door motor Mode door motor
Corresponding terminal
(Door motor side)34163416
Corresponding terminal
(Front air control side)19 22 21 20 23 26 25 24
Code number for short cir-
cuit
AUTO31AUTO32AUTO33AUTO34AUTO35AUTO36AUTO37AUTO38
Code number for open cir-
cuit31 32 33 34 35 36 37 38
Reference Page *3 *4
AWIIA0287GB
Page 3436 of 5883
SELF-DIAGNOSIS FUNCTION
HAC-103
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Pressing the DEF 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 30 and DEF switch LED will blinks. (For approx.
9 seconds)
>> INSPECTION END
AUXILIARY MECHANISM: TEMPERATURE SETTING TRIMMER
The trimmer compensates for differences in range of ±3°C between temperature setting (displayed digitally)
and temperature felt by driver.
Operating procedures for this trimmer are as follows:
1. Begin self-diagnosis STEP-5 mode. Refer to "Self-diagnosis Function".
2. Press blower motor switch (UP: ) to set system in auxiliary mode.
3. Display shows 0°C in auxiliary mechanism.
SJIA0952E
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Page 3437 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-104
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
4. Press temperature control switch as desired. Temperature will change at a rate of 1°C each time a switch
is NISSAN TIIDA 2007 Service Repair Manual HAC-104
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
4. Press temperature control switch as desired. Temperature will change at a rate of 1°C each time a switch
is](/manual-img/5/57395/w960_57395-3436.png)
HAC-104
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
SELF-DIAGNOSIS FUNCTION
4. Press temperature control switch as desired. Temperature will change at a rate of 1°C each time a switch
is pressed.
When battery cable is disconnected or battery voltage is 9.0V or less, trimmer operation is cancelled. Set
temperature returns to the initial condition, i.e. 0°C.
A/C System Self-Diagnosis Code ChartINFOID:0000000001547403
SYMPTOM TABLE
AWIIA0288GB
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System.HAC-163
Air outlet does not change.
Go to Trouble Diagnosis Procedure for Mode Door Motor.HAC-109
Mode door motor does not operate normally.
Discharge air temperature does not change.
Go to Trouble Diagnosis Procedure for Air Mix Door Motor.HAC-112
Air mix door motor does not operate normally.
Intake door does not change.
Go to Trouble Diagnosis Procedure for Intake Door Motor.HAC-116
Intake door motor does not operate normally.
Blower motor operation is malfunctioning. Go to Trouble Diagnosis Procedure for Blower Motor.HAC-120
Magnet clutch does not engage. Go to Trouble Diagnosis Procedure for Magnet Clutch.HAC-125
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.HAC-185
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.HAC-193
Page 3438 of 5883
SELF-DIAGNOSIS FUNCTION
HAC-105
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Noise Go to Trouble Diagnosis Procedure for Noise.HAC-195
Self-diagnosis cannot be performed. Go to Trouble Diagnosis Procedure for Self-diagnosis.HAC-311
Memory function does not operate. Go to Trouble Diagnosis Procedure for Memory Function.HAC-198
Symptom Reference Page
Page 3439 of 5883
![NISSAN TIIDA 2007 Service Repair Manual HAC-106
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MODE DOOR MOTOR
COMPONENT DIAGNOSIS
MODE DOOR MOTOR
System DescriptionINFOID:0000000001547404
SYSTEM DESCRIPTION
Component Parts
Mode d NISSAN TIIDA 2007 Service Repair Manual HAC-106
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MODE DOOR MOTOR
COMPONENT DIAGNOSIS
MODE DOOR MOTOR
System DescriptionINFOID:0000000001547404
SYSTEM DESCRIPTION
Component Parts
Mode d](/manual-img/5/57395/w960_57395-3438.png)
HAC-106
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
MODE DOOR MOTOR
COMPONENT DIAGNOSIS
MODE DOOR MOTOR
System DescriptionINFOID:0000000001547404
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 pressing MODE/DEF switch 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 discharge air calculated by front air control based on the target opening angle of air mix door
and the amount of sunload. And only when ambient temperature is extremely low with the mode door in the
FOOT position, D/F is selected and prevents windshield fogging.
AWIIA0290GB
Page 3440 of 5883
![NISSAN TIIDA 2007 Service Repair Manual MODE DOOR MOTOR
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Motor is actuated in sequence by energizi NISSAN TIIDA 2007 Service Repair Manual MODE DOOR MOTOR
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MODE DOOR MOTOR
HAC-107
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Motor is actuated in sequence by energizing four drive coils.
Rotation direction can be changed by changing pattern of excitation.
Mode Door Control Specification
COMPONENT DESCRIPTION
Mode Door Motor
The mode door motor is attached to the A/C unit assembly. It rotates
so that air is discharged from the outlet set by the front air control.
Motor rotation is conveyed to a link which activates the mode door.
Mode Door Motor Component Function CheckINFOID:0000000001569468
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - DISCHARGE AIR
1. Press the MODE switch and DEF ( ) switch.
2. Each position indicator should change shape.
3. Confirm that discharge air comes out according to the air distribution table. Refer to HAC-94, "
Discharge
Air Flow".
NOTE:
Confirm that the compressor clutch is engaged (sound or visual inspection) and intake door position is at
FRESH ( ) when DEF ( ) is selected.
Can a symptom be duplicated?
SJIA0971E
AWIIA0291GB
SJIA0812E