Nissan Cube. Manual - part 590

HAC-198

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

INSUFFICIENT COOLING

INSUFFICIENT COOLING

Description

INFOID:0000000009951100

Symptom

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

Diagnosis Procedure

INFOID:0000000009951101

CAUTION:

Perform the self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction
result or DTC is detected, perform the corresponding diagnosis.

1.

CHECK MAGNET CLUTCH OPERATION

1.

Turn the ignition switch ON.

2.

Turn the fan control dial ON.

3.

Press the A/C switch.

4.

Check that the indicator of the A/C switch turns ON. Check visually and by sound that the compressor
operates.

5.

Press the A/C switch again.

6.

Check that the indicator of the A/C switch turns OFF. Check that the compressor stops.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform the diagnosis of “COMPRESSOR DOSE NOT OPERATE” in “SYMPTOM DIAGNOSIS”.

Refer to 

HAC-200, "Diagnosis Procedure"

.

2.

CHECK DRIVE BELT

Check tension of the drive belt. Refer to 

EM-13, "Checking"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Adjust or replace drive belt depending on the inspection results.

3.

CHECK REFRIGERANT CYCLE PRESSURE

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

HA-8, "Symptom Table"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace parts depending on the inspection results.

4.

CHECK AIR LEAKAGE FROM EACH DUCT

Check duct and nozzle, etc. of the air conditioner system for leakage.
Is the inspection result normal?

YES

>> Check the air mix door cable installation and air mix door operation.

NO

>> Repair or replace parts depending on the inspection results.

INSUFFICIENT HEATING

HAC-199

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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INSUFFICIENT HEATING

Description

INFOID:0000000009951102

Symptom

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

Diagnosis Procedure

INFOID:0000000009951103

CAUTION:

Perform the self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction
result or DTC is detected, perform the corresponding diagnosis.

1.

CHECK COOLING SYSTEM

1.

Check the engine coolant level and check for leakage. Refer to 

CO-8, "Inspection"

.

2.

Check the radiator cap. Refer to 

CO-12, "RADIATOR CAP : Inspection"

.

3.

Check the water flow sounds of the engine coolant. Refer to 

CO-9, "Refilling"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Refill the engine coolant and repair or replace the parts depending on the inspection results.

2.

CHECK HEATER HOSE

Check the installation of heater hose by visually or touching.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace parts depending on the inspection results.

3.

CHECK HEATER CORE

1.

Check the temperature of inlet hose and outlet hose of heater core.

2.

Check that the inlet side of heater core is hot and the outlet side is slightly lower than/almost equal to the
inlet side.

CAUTION:

Always perform the temperature inspection in a short period of time because the engine coolant
temperature is very hot.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace the heater core. Refer to 

HA-44, "Exploded View (Manual Air Conditioner)"

.

4.

CHECK AIR LEAKAGE FROM EACH DUCT

Check duct and nozzle, etc. of the air conditioner system for air leakage.

Is the inspection result normal?

YES

>> Check the air mix door cable installation and air mix door operation.

NO

>> Repair or replace parts depending on the inspection results.

HAC-200

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

COMPRESSOR DOSE DOT OPERATE

COMPRESSOR DOSE DOT OPERATE

Description

INFOID:0000000009951104

SYMPTOM

Compressor dose not operate. 

Diagnosis Procedure

INFOID:0000000009951105

CAUTION:

• Perform the self-diagnosis with CONSULT before performing symptom diagnosis. If any malfunction

result or DTC is detected, perform the corresponding diagnosis.

• Check that the refrigerant is enclosed in cooler cycle normally. If the refrigerant amount is shortage

from proper amount, perform the inspection of refrigerant leakage

1.

CHECK A/C INDICATOR

1.

Turn the ignition switch ON.

2.

Operate the blower motor.

3.

Check that A/C indicator is turned ON when pressing the A/C switch.

4.

Check that A/C indicator is turned OFF when pressing the A/C switch again.

Is inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 5.

2.

CHECK MAGNET CLUTCH OPERATION

Check the magnet clutch. Refer to 

HAC-158, "Component Function Check"

. 

Does it operate normally?

YES

>> GO TO 3.

NO

>> Repair or replace the malfunctioning parts.

3.

CHECK REFRIGERANT PRESSURE SENSOR

Check the refrigerant pressure sensor. Refer to 

EC-425, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace the malfunctioning parts.

4.

CHECK BCM OUTPUT SIGNAL

With CONSULT

Check the “A/C ON SIG” or “FAN ON SIG” or “A/C RELAY SIG” in ECM.

Is the inspection result normal?

YES

>> Replace the IPDM E/R. Refer to 

PCS-64, "Exploded View"

.

NO

>> Replace the BCM. Refer to 

BCS-155, "Exploded View"

.

5.

CHECK A/C SWITCH

Check the A/C switch. Refer to 

HAC-159, "Diagnosis Procedure"

.

Is inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace the malfunctioning parts. 

6.

CHECK BLOWER FAN ON SIGNAL

Monitor item

Condition

Status

COMP REQ SIG

A/C switch: OFF

Off

A/C switch: ON

On

FAN REQ SW

Fan control dial: OFF

Off

Fan control dial: ON

On

COMPRESSOR DOSE DOT OPERATE

HAC-201

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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Check the blower fan ON signal. Refer to 

HAC-165, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair or replace the malfunctioning parts

7.

CHECK THERMO CONTROL AMP.

Check the thermo control amp. Refer to 

HAC-151, "Diagnosis Procedure"

.

Is the inspection result normal?

YES

>> Replace the BCM. Refer to 

BCS-155, "Exploded View"

.

NO

>> Repair or replace the malfunctioning parts