SELF-DIAGNOSIS CANNOT BE PERFORMED
HAC-197
< SYMPTOM DIAGNOSIS >[AUTO AIR CONDITIONER (W/O NAVI)]
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SELF-DIAGNOSIS CANNOT BE PERFORMED
Self-DiagnosisINFOID:0000000001682699
SYMPTOM: Self-diagnosis cannot be performed.
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - AUTO MODE
1. Press the AUTO switch.
2. Display should indicate AUTO. Discharge air and blower speed will depend on ambient, in-vehicle and set
temperatures.
Can a symptom be duplicated?
YES >> GO TO 2.
NO >> Perform a complete operational check. Refer to XX-XX, "*****"
.
2.CHECK FOR SERVICE BULLETINS
Check for any service bulletins.
>> GO TO 3.
3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and ground circuit. Refer to XX-XX, "*****"
.
Is the inspection result normal?
YES >> Cause cannot be confirmed by self-diagnosis.
NO >> GO TO 4.
4.CHECK AMBIENT SENSOR CIRCUIT
Check ambient sensor circuit. Refer to XX-XX, "*****"
.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace as necessary.
5.CHECK IN-VEHICLE SENSOR CIRCUIT
Check in-vehicle sensor circuit. Refer to XX-XX, "*****"
.
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace as necessary.
6.CHECK INTAKE SENSOR CIRCUIT
Check intake sensor circuit. Refer to XX-XX, "*****"
.
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace as necessary.
7.CHECK AIR MIX DOOR MOTOR PBR CIRCUIT
Check air mix door motor PBR circuit. Refer to XX-XX, "*****"
.
Is the inspection result normal?
OK >> Perform a complete operational check and check for other symptoms. Refer to XX-XX, "*****".
NG >> Repair or replace as necessary.
HAC-200
< PRECAUTION >[AUTO AIR CONDITIONER (W/O NAVI)]
PRECAUTIONS
- Do not allow A/C oil to come in contact with styrofoam parts. Damage may result.
CONTAMINATED REFRIGERANT
If a refrigerant other than pure HFC-134a (R-134a) is identified in a vehicle, your options are:
Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant into
the atmosphere.
Explain that recovery of the contaminated refrigerant could damage your service equipment and refrigerant
supply.
Suggest the customer return the vehicle to the location of previous service where the contamination may
have occurred.
If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain-
ers. Do not recover contaminated refrigerant into your existing service equipment. If your facility does
not have dedicated recovery equipment, you may contact a local refrigerant product retailer for available ser-
vice. This refrigerant must be disposed of in accordance with all federal and local regulations. In addition,
replacement of all refrigerant system components on the vehicle is recommended.
If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact NISSAN Cus-
tomer Affairs for further assistance.
Precaution for Service EquipmentINFOID:0000000001547462
MANIFOLD GAUGE SET
Be certain that the gauge face indicates R-134a or 134a. Make sure
the gauge set has 1/2″-16 ACME threaded connections for service
hoses. Confirm the set has been used only with refrigerant HFC-
134a (R-134a) along with specified oil.
SERVICE HOSES
Be certain that the service hoses display the markings described
(colored hose with black stripe). All hoses must include positive shut-
off devices (either manual or automatic) near the end of the hoses
opposite the manifold gauge.
SERVICE COUPLERS
Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. However, if an
improper connection is attempted, discharging and contamination
may occur.
SHA533D
RHA272D
Shut-off valve rotation A/C service valve
Clockwise Open
Counterclockwise Close
RHA273D
HAC-212
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
CONSULT-III Function (BCM)INFOID:0000000001547320
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
DATA MONITOR
Display Item List
BCM diagnostic
test itemDiagnostic mode Description
Inspection by partWORK SUPPORTSupports inspections and adjustments. Commands are transmitted to the BCM for
setting the status suitable for required operation, input/output signals are received
from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions.
Monitor item name “operation or
unit”Contents
IGN ON SW “ON/OFF”Displays “IGN Position (ON)/OFF, ACC Position (OFF)” status as judged from ignition switch signal
through the CAN communication.
FAN ON SIG “ON/OFF”Displays “FAN (ON)/FAN (OFF)” status as judged from blower motor switch signal through CAN com-
munication.
AIR COND SW “ON/OFF”Displays “COMP (ON)/COMP (OFF)” status as judged from air conditioner switch signal through the
CAN communication.
SELF-DIAGNOSIS FUNCTION
HAC-215
< FUNCTION DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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1. Turn mode control dial to AUTO, VENT or B/L position. (Except
for FOOT, D/F and DEF position)
2. Turn blower control dial to 1st position.
3. LEDs for A/C switch and intake switch blink for approximately 5
seconds. Then evaluation results are displayed.
4. Check intake switch (FRE, REC) and A/C switch LEDs illumina-
tion.
OK or NG
OK >> GO TO 7.
NG >> GO TO 10.
7.STEP-4: OPERATION OF EACH DOOR MOTOR IS CHECKED
1. Turn blower control dial to 2nd position. When switched to
STEP-4, LED for intake switch (FRE, REC) turns ON.
2. Every time rear window defogger switch is pressed, output pat-
tern shifts in following order: 1→2→3→4→5→6→1.
>> GO TO 8.
8.CHECK ACTUATORS
Confirm discharge air flow (refer to HAC-208, "
Discharge Air Flow"), air temperature, blower motor voltage,
and A/C 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 >> INSPECTION END
NG >> Air outlet does not change.
Go to Mode Door Motor Circuit. Refer to HAC-222, "
Mode Door Motor Diagnosis Procedure".
Intake door does not change.
Go to Intake Door Motor Circuit. Refer to HAC-230, "
Intake Door Motor Diagnosis Procedure".
Discharge air temperature does not change.
Go to Air Mix Door Motor Circuit. Refer to HAC-226, "
Air Mix Door Motor Diagnosis Procedure".
Blower motor operation is malfunctioning.
Go to Blower Motor Circuit. Refer to HAC-234, "
Front Blower Motor Diagnosis Procedure".
Magnet clutch does not engage.
SJIA0861E
SJIA0867E
AWIIA0329GB
AIR MIX DOOR MOTOR
HAC-225
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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P Air Mix Door Control Specification
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
PTC HEATER CONTROL SYSTEM
HAC-263
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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1. Turn ignition switch OFF.
2. Disconnect ambient sensor connector E60.
3. Turn ignition switch ON.
4. Check voltage between ambient sensor harness connector E60
terminal 2 and ground.
Is the inspection result normal?
YES >> GO TO 19.
NO >> GO TO 21.
19.CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control connector M86.
3. Check continuity between ambient sensor harness connector
E60 (A) terminal 1 and front air control harness connector M85
(B) terminal 10.
Is the inspection result normal?
YES >> GO TO 20.
NO >> Repair harness or connector.
20.CHECK AMBIENT SENSOR
Refer to HAC-265, "
PTC HEATER (300 WATT) : PTC Heater (300 Watt) Component Inspection".
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC-213, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO >> 1. Replace ambient sensor. Refer to XX.
2. Go to self-diagnosis HAC-213, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
21.CHECK CIRCUIT CONTINUITY BETWEEN AMBIENT SENSOR AND FRONT AIR CONTROL
1. Turn ignition switch OFF.
2. Disconnect front air control connector M86.
3. Check continuity between ambient sensor harness connector
E60 (A) terminal 2 and front air control harness connector M86
(B) terminal 3.
4. Check continuity between ambient sensor harness connector
E34 (A) terminal 2 and ground.
Te r m i n a l s
Vol tag e
(Approx.) (+) (−)
Connector Terminal
Ground
Ambient sensor:
E6025V
AWIIA0307ZZ
AB
Continuity
Connector Terminal Connector Terminal
Ambient sensor:
E601Front air control:
M8610 Yes
AWIIA0558ZZ
AB
Continuity
Connector Terminal Connector Terminal
Ambient sensor:
E602Front air control:
M863Yes
AWIIA0559ZZ
HAC-264
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
PTC HEATER CONTROL SYSTEM
Is the inspection result normal?
YES >> 1. Replace front air control. Refer to XX.
2. Go to self-diagnosis HAC-213, "
Front Air Control Self-Diagnosis" and perform self-diagnosis
STEP-2. Confirm that code No. 20 is displayed.
NO >> Repair harness or connector.
22.CHECK ENGINE RPM SIGNAL (MANUAL TRANSMISSION)
1. Reconnect PTC control unit.
2. Start the engine.
3. Check voltage between PTC control unit harness connector
M84 terminal 4 and ground.
Is the inspection result normal
YES >> GO TO 24.
NO >> GO TO 23.
23.CHECK CONTINUITY OF ENGINE RPM CIRCUIT BETWEEN FRONT AIR CONTROL AND PTC CON-
TROL UNIT (MANUAL TRANSMISSION)
1. Turn ignition switch OFF.
2. Disconnect ECM and PTC control unit connector.
3. Check continuity between PTC control unit harness connector
M84 (A) terminal 4 and ECM harness connector F10 (B) termi-
nal 13.
4. Check continuity between PTC control unit harness connector
M84 (A) terminal 4 and ground.
Is the inspection result normal
YES >> Replace ECM. Refer to XX.
NO >> Repair harness or connector.
24.CHECK BCM INPUT (FAN ON) SIGNAL
A
GroundContinuity
Connector Terminal
Ambient sensor:
E602No
Te r m i n a l s
Vo l ta g e
(Approx.) (+) (−)
Connector Terminal
Ground
PTC control unit: M84 4 4.2V
SJIA0924E
AB
Continuity
Connector Terminal Connector Terminal
PTC control unit: M84 4 ECM: F10 13 Yes
A
GroundContinuity
Connector Terminal
PTC control unit: M84 4 No
SJIA0925E
POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
HAC-277
< COMPONENT DIAGNOSIS >[AUTO AIR CONDITIONER (W/NAVI)]
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POWER SUPPLY AND GROUND CIRCUIT FOR CONTROLLER
Component DescriptionINFOID:0000000001547368
COMPONENT DESCRIPTION
Front air control
The front air control has a built-in microcomputer which processes information sent from various sensors
needed for air conditioner operation. The air mix door motor, mode door motor, intake door motor, blower
motor and compressor are then controlled.
The front air control is unitized with control mechanisms. Signal from various switches and Potentio Tempera-
ture Control (PTC) are directly entered into front air control
Self-diagnostic functions are also built into front air control to provide quick check of malfunctions in the auto
air conditioner system.
Potentio Temperature Control (PTC)
The PTC is built into the front air control It can be set at an interval of
1°C (34°F) in the 18°C (64°F) to 32°C (90°F) temperature range by
turning temperature control switch. The set temperature is displayed.
A/C Auto Amp. Component Function CheckINFOID:0000000001547369
SYMPTOM: A/C system does not come on.
INSPECTION FLOW
1.CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - AUTO MODE
1. Rotate the mode dial to the AUTO position.
2. Display should indicate AUTO. Confirm that the compressor clutch engages (sound or visual inspection).
(Discharge air and blower speed will depend on ambient, in-vehicle and set temperatures.)
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.CHECK POWER AND GROUND CIRCUIT
Check main power supply and ground circuit. Refer to HAC-278, "
A/C Auto Amp Power and Ground Diagnosis
Procedure".
Is the inspection result normal?
YES >> System OK.
NO >> Replace Front air control. Refer to XXXX.
SJIA0876E