Nissan Versa Sedan. Manual - part 493

MANUAL HEATER SYSTEM

HAC-27

< WIRING DIAGRAM >

[MANUAL AIR CONDITIONING]

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ABIIA1125GB

HAC-28

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Workflow

INFOID:0000000009269791

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

DIAGNOSIS AND REPAIR WORKFLOW

HAC-29

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

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>> 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"

 or

BCS-104, "DTC Inspection Priority Chart"

.

>> GO TO 7.

5.

OPERATION CHECK

Perform the operation check. Refer to 

HAC-30, "Work Procedure"

.

>> GO TO 6.

6.

SYMPTOM DIAGNOSIS

Check the symptom diagnosis table. Refer to 

HAC-44, "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-30, "Work Procedure"

.

Does it operate normally?

YES

>> Inspection End.

NO

>> GO TO 2.

HAC-30

< BASIC INSPECTION >

[MANUAL AIR CONDITIONING]

OPERATION INSPECTION

OPERATION INSPECTION

Work Procedure

INFOID:0000000009269792

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, "VENTILATION SYSTEM (FRONT AIR CONDITIONING) : 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.