Nissan Teana J32. Manual - part 679

A/C AUTO AMP.

HAC-85

< ECU DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

DTC Inspection Priority Chart

INFOID:0000000003846377

If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.

DTC Index

INFOID:0000000003846378

Compressor

: ON

Air outlet

: AUTO

Air inlet

: FRE (Fresh)

Blower fan speed

: AUTO

Set temperature

: Setting before communication error occurs

Priority

Detected items (DTC)

1

• U1000: CAN COMM CIRCUIT
• U1010: CONTROL UNIT (CAN)

2

• B257B: AMB TEMP SEN (SHORT)
• B257C: AMB TEMP SEN (OPEN)
• B2578: IN CAR SENSOR (OUT OF RANGE [LOW])
• B2579: IN CAR SENSOR (OUT OF RANGE [HI])
• B2581: EVAP TEMP SEN (SHORT)
• B2582: EVAP TEMP SEN (OPEN)
• B2630: SUNLOAD SEN (SHORT)
• B2631: SUNLOAD SEN (OPEN)
• B2632: DR AIRMIX ACTR (SHORT)
• B2633: DR AIRMIX ACTR (OPEN)
• B2634: PASS AIRMIX ACTR (SHORT)
• B2635: PASS AIRMIX ACTR (OPEN)
• B2636: DR VENT DOOR FAIL
• B2637: DR B/L DOOR FAIL
• B2638: DR D/F1 DOOR FAIL 
• B2639: DR DEF DOOR FAIL
• B263D: FRE DOOR FAIL
• B263E: 20P FRE DOOR FAIL
• B263F: REC DOOR FAIL
• B2654: D/F2 DOOR FAIL
• B2655: B/L2 DOOR FAIL
• B2656: BTC FRE DOOR FAIL

DTC

Items

(CONSULT-III screen terms)

Reference

U1000

CAN COMM CIRCUIT

HAC-42, "DTC Logic"

U1010

CONTROL UNIT (CAN)

HAC-43, "DTC Logic"

B257B

AMB TEMP SEN (SHORT)

HAC-44, "DTC Logic"

B257C

AMB TEMP SEN (OPEN)

HAC-44, "DTC Logic"

B2578

IN CAR SENSOR (OUT OF RANGE [LOW])

HAC-47, "DTC Logic"

B2579

IN CAR SENSOR (OUT OF RANGE [HI])

HAC-47, "DTC Logic"

B2581

EVAP TEMP SEN (SHORT)

HAC-50, "DTC Logic"

B2582

EVAP TEMP SEN (OPEN)

HAC-50, "DTC Logic"

B2630

*

SUNLOAD SEN (SHORT)

HAC-53, "DTC Logic"

B2631

*

SUNLOAD SEN (OPEN)

HAC-53, "DTC Logic"

B2632

DR AIRMIX ACTR (SHORT)

HAC-56, "DTC Logic"

B2633

DR AIRMIX ACTR (OPEN)

HAC-56, "DTC Logic"

B2634

PASS AIRMIX ACTR (SHORT)

HAC-58, "DTC Logic"

HAC-86

< ECU DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

A/C AUTO AMP.

*: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload sensor, otherwise self-diag-
nosis indicates even though the sunload sensor is functioning normally.

B2635

PASS AIRMIX ACTR (OPEN)

HAC-58, "DTC Logic"

B2636

DR VENT DOOR FAIL

HAC-60, "DTC Logic"

B2637

DR B/L DOOR FAIL

HAC-60, "DTC Logic"

B2638

DR D/F1 DOOR FAIL

HAC-60, "DTC Logic"

B2639

DR DEF DOOR FAIL

HAC-60, "DTC Logic"

B263D

FRE DOOR FAIL

HAC-63, "DTC Logic"

B263E

20P FRE DOOR FAIL

HAC-63, "DTC Logic"

B263F

REC DOOR FAIL

HAC-63, "DTC Logic"

B2654

D/F2 DOOR FAIL

HAC-60, "DTC Logic"

B2655

B/L2 DOOR FAIL

HAC-60, "DTC Logic"

B2656

BTC FRE DOOR FAIL

HAC-63, "DTC Logic"

DTC

Items

(CONSULT-III screen terms)

Reference

AIR CONDITIONER CONTROL

HAC-87

< SYMPTOM DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

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SYMPTOM DIAGNOSIS

AIR CONDITIONER CONTROL

Diagnosis Chart By Symptom

INFOID:0000000003846383

Symptom

Reference

A/C system does not activate.

Go to Trouble Diagnosis Procedure for A/C Control Signal 
Circuit.

HAC-74, "Diagnosis Proce-

dure"

A/C display dose not work.

Go to Trouble Diagnosis Procedure for A/C Display.

HAC-66, "A/C DISPLAY : Diag-

nosis Procedure"

 

Air outlet does not change.

Go to Trouble Diagnosis Procedure for Mode Door Motor. 
(LAN)

HAC-61, "Diagnosis Proce-

dure"

Mode door motor does not operate 
normally.

Discharge air temperature does not 
change.

Go to Trouble Diagnosis Procedure for Air Mix Door Motor. 
(LAN)

HAC-57, "Diagnosis Proce-

dure"

 (driver side) or 

HAC-59, 

"Diagnosis Procedure"

 (pas-

senger side)

Air mix door motor does not operate 
normally.

Intake door does not change.

Go to Trouble Diagnosis Procedure for Intake Door Motor. 
(LAN)

HAC-64, "Diagnosis Proce-

dure"

Intake door motor does not operate 
normally.

Blower motor operation is malfunc-
tioning.

Go to Trouble Diagnosis Procedure for Blower Motor.

HAC-68, "Diagnosis Proce-

dure"

Magnet clutch does not engage.

Go to Trouble Diagnosis Procedure for Magnet Clutch.

HAC-72, "Diagnosis Proce-

dure"

Insufficient cooling

Go to Trouble Diagnosis Procedure for Insufficient Cooling.

HAC-88, "Inspection proce-

dure"

No cool air comes out.
(Air flow volume is normal.)

Insufficient heating

Go to Trouble Diagnosis Procedure for Insufficient Heating.

HAC-91, "Inspection proce-

dure"

No warm air comes out.
(Air flow volume is normal.)

Noise

Go to Trouble Diagnosis Procedure for Noise.

HAC-94, "Inspection proce-

dure"

Memory function does not operate.

Go to Trouble Diagnosis Procedure for Memory Function.

HAC-96, "Inspection proce-

dure"

HAC-88

< SYMPTOM DIAGNOSIS >

[WITHOUT 7 INCH DISPLAY]

INSUFFICIENT COOLING

INSUFFICIENT COOLING

Description

INFOID:0000000003846386

Symptom

• Insufficient cooling
• No cool air comes out. (Air flow volume is normal.)

Inspection procedure

INFOID:0000000003846387

1.

CHECK WITH A GAUGE OF RECOVERY/RECYCLING RECHARGING EQUIPMENT

Connect the recovery/recycling recharging equipment to the vehicle and perform the pressure inspection with
the gauge.

Is there refrigerant?

YES

>> GO TO 2.

NO-1

>> Check for refrigerant leakages with the refrigerant leakage detecting fluorescent leak detector.

Refer to 

HA-32, "Inspection"

.

NO-2

>> GO TO 2 after repairing or replacing the parts according to the inspection results.

2.

CHECK CHARGED REFRIGERANT AMOUNT

1.

Connect recovery/recycling recharging equipment to the vehicle and discharge the refrigerant.

2.

Recharge with the proper amount of refrigerant and perform the inspection with the refrigerant leakage
detecting fluorescent leak detector. Refer to 

HA-32, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Refill the refrigerant and repair or replace the parts according to the inspection results.

3.

CHECK REFRIGERANT CYCLE PRESSURE

Connect recovery/recycling recharging equipment to the vehicle and perform the performance test. Refer to

HA-30, "Performance Chart"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform the diagnosis with the gauge pressure. Refer to 

HA-8, "Trouble Diagnosis For Unusual

Pressure"

.

4.

CHECK SETTING OF TEMPERATURE SETTING TRIMMER

Using CONSULT-III, check the setting of “TEMP SET CORRECT” on “WORK SUPPORT” of HVAC. Refer to

HAC-10, "Temperature Setting Trimmer"

. 

1.

Check that the temperature setting trimmer is set to “+ direction”. 
NOTE:
The control temperature can be set with the setting of the temperature setting trimmer.

2.

Set temperature control switch to “0”.

Are the malfunction solved?

YES

>> Perform the setting separately if necessary. END.

NO

>> GO TO 5.

5.

CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT-III

1.

Using CONSULT-III, perform “SELF-DIAGNOSIS RESULTS” of HVAC. 

2.

Check if any DTC is displayed in the trouble diagnosis results. 
NOTE:
If DTC is displayed along with DTC U1000 or U1010, first diagnose the DTC U1000 or U1010. Refer to

HAC-42, "DTC Logic"

 or 

HAC-43, "DTC Logic"

. 

Is any DTC displayed?

YES

>> Perform the diagnosis that is applicable to the sensor and the door motor. Refer to 

HAC-85, "DTC

Index"

. 

NO

>> GO TO 6.

6.

CHECK WITH ACTIVE TEST OF CONSULT-III