Nissan Tiida C11. Manual - part 852

HAC-72

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONER]

AIR CONDITIONER CONTROL

SYMPTOM DIAGNOSIS

AIR CONDITIONER CONTROL

Symptom Matrix Chart

INFOID:0000000001203074

SYMPTOM TABLE

Symptom

Reference Page

Air outlet does not change.

Go to Trouble Diagnosis Procedure for Mode Door.

HAC-16

Discharge air temperature does not 
change.

Go to Trouble Diagnosis Procedure for Air Mix Door.

HAC-17

Intake door does not change.

Go to Trouble Diagnosis Procedure for Intake Door.

HAC-18

Blower motor operation is malfunctioning.

Go to Trouble Diagnosis Procedure for Blower Motor.

HAC-19

Magnet clutch does not engage in A/C, de-
frost/foot, or defrost mode.

Go to Trouble Diagnosis Procedure for Magnet Clutch.

HAC-24

Insufficient cooling

Go to Trouble Diagnosis Procedure for Insufficient Cooling.

HAC-73

Insufficient heating

Go to Trouble Diagnosis Procedure for Insufficient Heating.

HAC-81

Noise

Go to Trouble Diagnosis Procedure for Noise.

HAC-83

INSUFFICIENT COOLING

HAC-73

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONER]

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INSUFFICIENT COOLING

Component Function Check

INFOID:0000000001547073

SYMPTOM: Insufficient cooling

INSPECTION FLOW

1.

CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - TEMPERATURE DECREASE 

1.

Turn temperature control dial counterclockwise to maximum cold position.

2.

Check for cold air at discharge air outlets.

Can the symptom be duplicated?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FOR ANY SYMPTOMS 

Perform a complete operational check for any symptoms. Refer to 

HAC-6, "Operational Check"

.

Does another symptom exist?

YES

>> Refer to 

HAC-5, "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 COMPRESSOR DRIVE BELT TENSION 

Check compressor belt tension. Refer to 

EM-15, "Checking"

 (HR16DE) or 

EM-142, "Checking Drive Belts"

(MR18DE), or 

EM-263, "Inspection and Adjustment"

 (K9K).

OK or NG

OK

>> GO TO 5.

NG

>> Adjust or replace compressor belt. Refer to 

EM-15, "Checking"

 (HR16DE) or 

EM-142, "Checking

Drive Belts"

 (MR18DE), or  

EM-263, "Inspection and Adjustment"

 (K9K)

5.

CHECK AIR MIX DOOR CABLE

Check and verify air mix door cable operation. Refer to XXXX AIR MIX DOOR CABLE ADJUST. 

Does air mix door operate correctly?

YES

>> GO TO 6.

NO

>> Repair or replace as necessary.

6.

CHECK COOLING FAN MOTOR OPERATION

Check and verify cooling fan motor for smooth operation. Refer to XX-XX, "*****".
Does cooling fan motor operate correctly?

YES

>> GO TO 7.

NO

>> Check cooling fan motor. Refer to XX-XX, "*****".

7.

CHECK FOR EVAPORATOR FREEZE UP

Start engine and run A/C. Check for evaporator freeze up.

Does evaporator freeze up?

YES

>> Perform performance test diagnoses. Refer to "PERFORMANCE TEST DIAGNOSIS".

NO

>> GO TO 8.

8.

CHECK REFRIGERANT PRESSURE

Check refrigerant pressure with manifold gauge connected. Refer to "Test Reading". 

OK or NG

OK

>> GO TO 9.

NG

>> Perform performance test diagnoses. Refer to "PERFORMANCE TEST DIAGNOSIS".

HAC-74

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONER]

INSUFFICIENT COOLING

9.

CHECK AIR DUCTS

Check ducts for air leaks.
OK or NG

OK

>> If the symptom still exists, perform a complete operational check. Refer to 

HAC-6, "Operational

Check"

. If other symptoms exist, refer to 

HAC-5, "How to Perform Trouble Diagnosis For Quick

and Accurate Repair"

. 

NG

>> Repair air leaks.

Performance Test Diagnoses

INFOID:0000000001547074

PERFORMANCE TEST DIAGNOSIS

RJIA1601E

INSUFFICIENT COOLING

HAC-75

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONER]

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Performance Chart

INFOID:0000000001547075

PERFORMANCE CHART

Test Condition

*1

"PERFORMANCE CHART"

*2

"Test Reading"

*3

"TROUBLE DIAGNOSIS FOR UN-
USUAL PRESSURE "

*4

*1

XXXX REMOVAL OF COMPRES-
SOR

*2

XXXX BLOWER MOTOR CIR.

*3

XX-XX, "*****"

RJIA3107E