Nissan Versa

 Sedan Service Manual

Ventilation, heater & air conditioner » Heater & air conditioning control system (HAC)
Compressor does not operate

Description

SYMPTOM

Compressor does not operate.

Diagnosis Procedure

NOTE:

• Perform self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction result or DTC is detected, perform the corresponding diagnosis.
• Check that refrigerant system is fully charged. If the refrigerant charge is low, perform the inspection for refrigerant leakage

1.CHECK MAGNET CLUTCH OPERATION

Check magnet clutch. Refer to HAC "Component Function Check".

Does it operate normally?

YES >> GO TO 2.

NO >> Repair or replace malfunctioning parts.

2.CHECK REFRIGERANT PRESSURE SENSOR

Check refrigerant pressure sensor. Refer to EC "Component Function Check".

Is the inspection result normal?

YES >> GO TO 3.

NO >> Repair or replace malfunctioning parts.

3.CHECK A/C ON SIGNAL

Check A/C ON signal. Refer to HAC "Component Function Check".

Is the inspection result normal?

YES >> GO TO 4.

NO >> Repair or replace malfunctioning parts.

4.CHECK BLOWER FAN ON SIGNAL

Check blower fan ON signal. Refer to HAC "Component Function Check".

Is the inspection result normal?

YES >> GO TO 5.

NO >> Repair or replace malfunctioning parts

5.CHECK BCM OUTPUT SIGNAL

With CONSULT

1. Select "DATA MONITOR" mode of "ECM" using CONSULT.
2. Select "AIR COND SIG" and "HEATER FAN SW", and check status under the following conditions.

Is the inspection result normal?

YES >> Replace IPDM E/R. Refer to PCS "Removal and Installation".

NO >> Replace BCM. Refer to BCS "Removal and Installation" or BCS "Removal and Installation".

UNIT REMOVAL AND INSTALLATION

Precautions

Manual air conditioning system

Diagnosis and repair workflow

Operation inspection

A/C On signal

Blower fan on signal

A/C Indicator

Front blower motor

Magnet clutch

Insufficient cooling

Insufficient heating

Compressor does not operate

Front air control

Refrigerant pressure sensor

Blower fan resistor

Intake door cable

Mode door cable

Air mix door cable