NISSAN TIIDA 2007 Service Repair Manual

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

HAC-220
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
MODE DOOR MOTOR
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.
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:0000000001547327
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - DISCHARGE AIR
1. Turn mode control dial to each position.
2. Confirm that discharge air comes out according to the air distribution table. Refer to HAC-208, "
Discharge
Air Flow".
NOTE:
Confirm that the compressor clutch is engaged (visual inspection) and intake door position is at FRESH
when DEF ( ) or D/F ( ) is selected.
Can a symptom be duplicated?
YES >> GO TO 3.
SJIA0971E
AWIIA0291GB
SJIA0812E

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-222
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
MODE DOOR MOTOR
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.
Mode Door Motor Diagnosis ProcedureINFOID:0000000001547328
SYMPTOM: Air outlet does not change.
 Mode door motor does not operate normally.
DIAGNOSTIC PROCEDURE FOR MODE DOOR MOTOR
1.CHECK MODE DOOR MOTOR
1. Turn ignition switch OFF.
2. Disconnect mode door motor harness connector.
3. Check continuity between mode door motor terminals.
OK or NG
OK >> GO TO 2.
NG >> Replace mode door motor.
2.CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND MODE DOOR MOTOR
1. Disconnect front air control harness connector.
2. Check continuity between front air control harness connector
M86 (A) terminals and mode door motor harness connector M87
(B) terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND GROUND
Connector Terminals Continuity
Mode door motor: M72 21
Ye s 3
4
6
SJIA0948E
AB
Continuity
Connector Terminal Connector Terminal
Front air con-
trol: M8633
Mode door
motor: M873
Ye s 34 6
35 1
36 4
SJIA0949E

MODE DOOR MOTOR
HAC-223
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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Check continuity between front air control harness connector and
ground.
OK or NG
OK >> Replace front air control. Refer to XXXX
NG >> Repair harness or connector.
Connector Terminal
GroundContinuity
Front air control:
M86 33
No 34
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SJIA0950E

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

AIR MIX DOOR MOTOR
HAC-225
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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COMPONENT DESCRIPTION
Air Mix Door Motor
The air mix door motor is attached to the A/C unit assembly. It
rotates so that the air mix door is opened or closed to a position set
by the front air control. Motor rotation is conveyed through a shaft
and the air mix door position is then feedback to the front air control
by PBR built-in air mix door motor.
Air Mix Door Motor Component Function CheckINFOID:0000000001547330
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE INCREASE
1. Turn the temperature control dial clockwise until 32°C (90°F) is displayed.
2. Check for hot air at discharge air outlets.
>> GO TO 2.
2.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE
1. Turn the temperature control dial counterclockwise until 18°C (64°F) is displayed.
2. Check for cold air at discharge air outlets.
Can a symptom be duplicated?
YES >> GO TO 4.
NO >> GO TO 3.
3.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.
4.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 4.
5.PERFORM SELF-DIAGNOSIS.
WJIA0435E
AWIIA0335ZZ

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

AIR MIX DOOR MOTOR
HAC-227
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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1. Turn ignition switch OFF.
2. Disconnect air mix door motor harness connector.
3. Check continuity between air mix door motor terminals.
OK or NG
OK >> GO TO 2.
NG >> Replace air mix door motor. Refer to XXXX
2.CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND AIR MIX DOOR MOTOR
1. Disconnect front air control harness connector.
2. Check continuity between front air control harness connector
M86 (A) terminals and air mix door motor harness connector
M88 (B) terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK CIRCUIT CONTINUITY BETWEEN FRONT AIR CONTROL AND GROUND
Check continuity between front air control harness connector and
ground.
OK or NG
OK >> Replace front air control. Refer to XXXX
NG >> Repair harness or connector.
Connector Terminals Continuity
Air mix door motor: M88 21
Ye s 3
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SJIA0948E
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Continuity
Connector Terminal Connector Terminal
Front air con-
trol: M8625
Air mix door
motor: M883
Ye s 26 6
27 1
28 4
SJIA0953E
Connector Terminal
GroundContinuity
Front air control:
M86 25
No 26
27
28
SJIA0954E