Nissan Rogue. Manual - part 789

HAC-178

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

INSUFFICIENT HEATING

INSUFFICIENT HEATING

Component Function Check

INFOID:0000000011276715

SYMPTOM: Insufficient heating

INSPECTION FLOW

1.

 CONFIRM SYMPTOM BY PERFORMING OPERATION CHECK - TEMPERATURE INCREASE

1. Turn temperature control dial clockwise to maximum heat.

2. Check for hot air at discharge air outlets.
Can a symptom be duplicated?

YES

>> GO TO 3.

 NO

>> GO TO 2.

2.

 CHECK FOR ANY SYMPTOMS

Perform a complete operational check and check for any symptoms. Refer to  

HAC-149, "Work Procedure"

.

Does another symptom exist?

YES

>> Refer to 

HAC-175, "Symptom Table"

.

NO

>> System OK. 

3.

 CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 4.

4.

 CHECK ENGINE COOLING SYSTEM

1. Check for proper engine coolant level. Refer to 

CO-8, "Inspection"

.

2. Check hoses for leaks or kinks.

3. Check radiator cap. Refer to 

CO-12, "RADIATOR CAP : Inspection"

.

4. Check for air in cooling system.

>> GO TO 5.

5.

 CHECK AIR MIX DOOR MOTOR OPERATION

Check and verify air mix door mechanism for smooth operation.
Does air mix door operate correctly?

YES

>> GO TO 6.

 NO

>> Check the air mix door motor circuit. Refer to 

HAC-164, "Diagnosis Procedure"

.

6.

 CHECK AIR DUCTS

Check for disconnected or leaking air ducts.
Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Repair all disconnected or leaking air ducts.

7.

 CHECK HEATER HOSE TEMPERATURES

1. Start engine and warm it up to normal operating temperature.

2. Touch both the inlet and outlet heater hoses. The inlet hose should be hot and the outlet hose should be

warm.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Both hoses warm: GO TO 9.

8.

 CHECK ENGINE COOLANT SYSTEM 

Check thermostat operation. Refer to 

CO-22, "Inspection"

.

Is the inspection result normal?

INSUFFICIENT HEATING

HAC-179

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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YES

>> System OK.

NO

>> Repair or replace as necessary. 

9.

 CHECK HEATER HOSES 

Check heater hoses for proper installation.
Is the inspection result normal?

YES

>> System OK.

NO

>> 1. Back flush heater core.

2. Drain the water from the system.

3. Refill system with new engine coolant. Refer to 

CO-9, "Refilling"

.

4. To retest GO TO 10.

10.

 CHECK HEATER HOSE TEMPERATURES

1. Start engine and warm up to normal operating temperature. 

2. Touch both the inlet and outlet heater hoses. The inlet hose should be hot and the outlet hose should be

warm

Is the inspection result normal?

YES

>> System OK.

NO

>> Replace heater core. Refer to 

HA-43, "HEATER CORE : Removal and Installation"

.

HAC-180

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

COMPRESSOR DOES NOT OPERATE

COMPRESSOR DOES NOT OPERATE

Description

INFOID:0000000011276716

Symptom: Compressor does not operate.

Diagnosis Procedure

INFOID:0000000011276717

NOTE:

• Perform self-diagnoses with CONSULT before performing symptom diagnosis. If DTC is detected, perform

the corresponding diagnosis.

• Check that refrigerant system is properly charged. If refrigerant amount is below the proper amount, perform

inspection of refrigerant leakage.

1.

CHECK MAGNET CLUTCH OPERATION

Check magnet clutch. Refer to 

HAC-172, "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-485, "Component Function Check"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning parts.

3.

CHECK FRONT AIR CONTROL OUTPUT SIGNAL

With CONSULT

Check “COMP REQ SIG” and “” in “Data Monitor” of “”.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace front air control. Refer to 

HAC-182, "Removal and Installation"

.

4.

CHECK ECM INPUT SIGNAL

With CONSULT

Check “AIR COND SIG” and “HEATER FAN SW” in “Data Monitor” of “ECM”.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Check CAN communication system. Refer to 

LAN-17, "Trouble Diagnosis Flow Chart"

.

5.

CHECK IPDM E/R INPUT SIGNAL

With CONSULT

1. Start engine.

Monitor item

Condition

Status

COMP REQ SIG

A/C switch

ON

On

OFF

Off

FAN REQ SIG

Blower motor

ON

On

OFF

Off

Monitor item

Condition

Status

AIR COND SIG

A/C switch

ON

On

OFF

Off

HEATER FAN SW

Blower motor

ON

On

OFF

Off

COMPRESSOR DOES NOT OPERATE

HAC-181

< SYMPTOM DIAGNOSIS >

[MANUAL AIR CONDITIONING]

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2. Check “AC COMP REQ” in “Data Monitor” of “IPDM E/R”.

Is the inspection result normal?

YES

>> Inspection End.

NO

>> Check CAN communication system. Refer to 

LAN-17, "Trouble Diagnosis Flow Chart"

.

Monitor item

Condition

Status

AC COMP REQ

A/C switch

ON

On

OFF

Off