Nissan Versa Note. Manual - part 499

DIAGNOSIS AND REPAIR WORKFLOW

HAC-31

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Workflow

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OVERALL SEQUENCE

DETAILED FLOW

1.

INTERVIEW CUSTOMER

Interview the customer to obtain as much information as possible about the conditions and environment under

which the malfunction occurred.

ALIIA0440GB

HAC-32

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

DIAGNOSIS AND REPAIR WORKFLOW

>> GO TO 2.

2.

SYMPTOM CHECK

Verify symptoms.

>> GO TO 3.

3.

CHECK FOR DTCS

With CONSULT

1. Turn ignition switch ON.

2. Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

3. Check DTC.
Is any DTC detected?

YES

>> GO TO 4.

NO

>> GO TO 5.

4.

PERFORM DTC DIAGNOSTIC PROCEDURE

Perform the diagnostic procedure for the detected DTC. Refer to 

BCS-47, "DTC Inspection Priority Chart"

(with Intelligent Key) or 

BCS-109, "DTC Inspection Priority Chart"

 (without Intelligent Key).

>> GO TO 7.

5.

OPERATION CHECK

Perform the operation check. Refer to 

HAC-33, "Work Procedure"

.

>> GO TO 6.

6.

SYMPTOM DIAGNOSIS

Check the symptom diagnosis table. Refer to 

HAC-51, "Symptom Table"

.

>> GO TO 8.

7.

VERIFY REPAIR.

With CONSULT

1. Turn ignition switch ON.

2. Select “Self Diagnostic Result” mode of “BCM” using CONSULT.

3. Check DTC.
Is any DTC detected?

YES

>> GO TO 4.

NO

>> GO TO 8.

8.

PERFORM FINAL OPERATION CHECK

Perform the operation check. Refer to 

HAC-33, "Work Procedure"

.

Does it operate normally?

YES

>> Inspection End.

NO

>> GO TO 2.

OPERATION INSPECTION

HAC-33

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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OPERATION INSPECTION

Work Procedure

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The purpose of the operation inspection is to check that the individual system operates normally.

1.

CHECK FRONT BLOWER MOTOR

1. Operate fan control dial.

2. Check that fan speed changes. Check operation for all fan speeds.
Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 8.

2.

CHECK DISCHARGE AIR

1. Operate fan control dial to set the fan speed to maximum speed.

2. Operate MODE dial to each position.

3. Check that air outlets change according to each indicated air outlet by placing a hand in front of the air

outlets. Refer to 

VTL-4, "System Description"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 8.

3.

CHECK INTAKE AIR

1. Operate intake lever to each position.

2. Listen to intake sound and confirm air inlets change.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 8.

4.

CHECK COMPRESSOR

1. Turn fan control dial ON.

2. Press A/C switch. The A/C switch indicator is turns ON.

3. Check visually and by sound that the compressor operates.

4. Press A/C switch again. The A/C switch indicator is turns OFF.

5. Check that compressor stops.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 8.

5.

CHECK DISCHARGE AIR TEMPERATURE

1. Operate temperature control dial.

2. Check that discharge air temperature changes. 
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 8.

6.

CHECK TEMPERATURE DECREASE

1. Operate compressor.

2. Turn temperature control dial to full cold position.

3. Check that cool air blows from the air outlets.
Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 8.

7.

CHECK TEMPERATURE INCREASE

Check condition : Engine running at normal operating temperature.

HAC-34

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

OPERATION INSPECTION

1. Turn temperature control dial to full hot position.

2. Check that warm air blows from air outlets.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> GO TO 8.

8.

CHECK SELF-DIAGNOSIS WITH CONSULT

1. Perform self-diagnosis with CONSULT.

2. Check that any DTC is detected.
Is any DTC detected?

YES

>> Perform trouble diagnosis for the detected DTC.

NO

>> Refer to 

HAC-51, "Symptom Table"

 and perform the appropriate diagnosis.