Nissan Rogue Service Manual: Symptom diagnosis

Nissan Rogue Service Manual / Ventilation, heater & air conditioner / Heater & Air Conditioning Control System / Manual air conditioning / Symptom diagnosis

HEATER AND AIR CONDITIONING SYSTEM CONTROL SYMPTOMS

Symptom Table

SYMPTOM TABLE

Symptom	Reference Page
A/C system does not come on.	Go to Trouble Diagnosis Procedure for A/C System.	HAC-166, "FRONT A/C CONTROL : Diagnosis Procedure"
Air outlet does not change.	Go to Trouble Diagnosis Procedure for Mode Door Motor.	HAC-160, "Diagnosis Procedure"
Mode door motor does not operate normally.	Go to Trouble Diagnosis Procedure for Mode Door Motor.	HAC-160, "Diagnosis Procedure"
Discharge air temperature does not change.	Go to Trouble Diagnosis Procedure for Air Mix Door Motor.	HAC-163, "Diagnosis Procedure
Air mix door motor does not operate normal ly.	Go to Trouble Diagnosis Procedure for Air Mix Door Motor.	HAC-163, "Diagnosis Procedure
Intake door does not change.	Go to Trouble Diagnosis Procedure for Intake Door Motor.	HAC-157, "Diagnosis Procedure"
Intake door motor does not operate normally.	Go to Trouble Diagnosis Procedure for Intake Door Motor.	HAC-157, "Diagnosis Procedure"
Blower motor operation is malfunctioning.	Go to Trouble Diagnosis Procedure for Blower Motor	HAC-167, "Diagnosis Procedure"
Magnet clutch does not engage.	Go to Trouble Diagnosis Procedure for Magnet Clutch.	HAC-171, "Component Function Check"
Insufficient cooling	Go to Trouble Diagnosis Procedure for Insufficient Cooling.	HAC-175, "Component Function Check"
Insufficient heating	Go to Trouble Diagnosis Procedure for Insufficient Heating.	HAC-177, "Component Function Check"
Noise	Go to Trouble Diagnosis Procedure for Noise.	HA-20, "Symptom Table"

INSUFFICIENT COOLING

Component Function Check

SYMPTOM: Insufficient cooling

INSPECTION FLOW

1. CONFIRM SYMPTOM BY PERFORMING OPERATION CHECK - TEMPERATURE DECREASE

Press the A/C switch.
Turn temperature control dial counterclockwise to maximum cold.
Check for cold 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-148, "Work Procedure".

Does another symptom exist? YES >> Refer to HAC-174, "Symptom Table".

NO >> System OK.

3. CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 4.

4. CHECK DRIVE BELTS

Check A/C compressor belt tension. Refer to EM-13, "Checking".

Is the inspection result normal? YES >> GO TO 5.

NO >> Adjust or replace compressor belt. Refer to EM-13, "Tension Adjustment".

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 air mix door motor circuit. Refer to HAC-163, "Diagnosis Procedure".

6. CHECK COOLING FAN MOTOR OPERATION

Check and verify cooling fan motor for smooth operation.

Does cooling fan motor operation correctly? YES >> GO TO 7.

NO >> Check cooling fan motor. Refer to EC-458, "Component Function Check".

7. CHECK RECOVERY/RECYCLING EQUIPMENT BEFORE USAGE

Check recovery/recycling equipment before connecting to vehicle. Verify there is no pressure in the recovery/ recycling equipment by checking the gauges. If pressure exists, recover refrigerant from equipment lines.

>> GO TO 8.

8. CHECK REFRIGERANT PURITY

Connect recovery/recycling equipment to vehicle.
Confirm refrigerant purity in supply tank using recovery/recycling and refrigerant identifier.

Is the inspection result normal? YES >> GO TO 9.

NO >> Check contaminated refrigerant. Refer to HA-21, "Description".

9. CHECK REFRIGERANT PRESSURE

Check refrigerant pressure with manifold gauge connected. Refer to HA-28, "Inspection".

Is the inspection result normal? YES >> Perform diagnostic work flow. Refer to HA-15, "Workflow".

NO >> GO TO 10.

10. CHECK FOR EVAPORATOR FREEZE UP

Start engine and run A/C. Check for evaporator freeze up.

Does evaporator freeze up? YES >> Perform diagnostic work flow. Refer HA-15, "Workflow".

NO >> GO TO 11.

11. CHECK AIR DUCTS

Check ducts for air leaks.

Is the inspection result normal? YES >> System OK.

NO >> Repair air leaks.

INSUFFICIENT HEATING

Component Function Check

SYMPTOM: Insufficient heating

INSPECTION FLOW

1. CONFIRM SYMPTOM BY PERFORMING OPERATION CHECK - TEMPERATURE INCREASE

Turn temperature control dial clockwise to maximum heat.
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-148, "Work Procedure".

Does another symptom exist? YES >> Refer to HAC-174, "Symptom Table".

NO >> System OK.

3. CHECK FOR SERVICE BULLETINS

Check for any service bulletins.

>> GO TO 4.

4. CHECK ENGINE COOLING SYSTEM

Check for proper engine coolant level. Refer to CO-8, "Inspection".
Check hoses for leaks or kinks.
Check radiator cap. Refer to CO-12, "RADIATOR CAP : Inspection".
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-163, "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

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

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 >>

Back flush heater core.
Drain the water from the system.
Refill system with new engine coolant. Refer to CO-9, "Refilling".
To retest GO TO 10.

10. CHECK HEATER HOSE TEMPERATURES

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

COMPRESSOR DOES NOT OPERATE

Description

Symptom: Compressor does not operate.

Diagnosis Procedure

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-171, "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-482, "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 “FAN ON” and “” in “DATA MONITOR” mode of “” using CONSULT.

Check front air control output signal

Is the inspection result normal? YES >> GO TO 4.

NO >> Replace front air control. Refer to HAC-181, "Removal and Installation".

4.CHECK ECM INPUT SIGNAL

With CONSULT

Check “AIR COND SIG” and “HEATER FAN SW” in “DATA MONITOR” mode of “ECM” using CONSULT.

Check ecm input signal

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

Start engine.
Check “AC COMP REQ” in “DATA MONITOR” mode of “IPDM E/R” using CONSULT.

Check ipdm e/r input signal

Is the inspection result normal? YES >> Inspection End.

NO >> Check CAN communication system. Refer to LAN-17, "Trouble Diagnosis Flow Chart".

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