Nissan Juke Service and Repair Manual : Insufficient heating

Description

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

Diagnosis Procedure

NOTE

:
Perform self-diagnoses with CONSULT-III before performing symptom diagnosis. If any DTC is detected, perform the corresponding diagnosis.

1.CHECK COOLING SYSTEM

1. Check engine coolant level and check for leakage. Refer to CO-11, "Inspection".

2. Check radiator cap. Refer to CO-15, "RADIATOR CAP : Inspection".

3. Check water flow sounds of the engine coolant. Refer to CO-12, "Refilling".

Is the inspection result normal? YES >> GO TO 2.

NO >> Refill engine coolant and repair or replace the parts depending on the inspection results.

2.CHECK HEATER HOSE

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

2. Check that 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 heater core. Refer to HA-116, "HEATER CORE : Removal and Installation".

4.CHECK AIR LEAKAGE FROM EACH DUCT

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

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

NO >> Repair or replace parts depending on the inspection results.

5.CHECK SETTING OF TEMPERATURE SETTING TRIMMER

1. Check setting value of temperature setting trimmer. Refer to HAC-48, "Temperature Setting Trimmer".

2. Check that temperature setting trimmer is set to − direction.

NOTE

:
The control temperature can be set by the temperature setting trimmer.

3. Set difference between the set temperature and control temperature to 0.

Are the symptoms solved? YES >> INSPECTION END

NO >> Replace A/C auto amp. Refer to HAC-91, "Removal and Installation".

    Insufficient cooling
    Description Symptom Insufficient cooling No cool air comes out. (Air flow volume is normal.) Diagnosis Procedure NOTE: Perform self-diagnoses with CONSULT-III before performing symptom diagn ...

    Compressor dose dot operate
    Description SYMPTOM Compressor dose not operate. Diagnosis Procedure NOTE: Perform self-diagnoses with CONSULT-III before performing symptom diagnosis. If any DTC is detected, perform the co ...

    Other materials:

    Washer switch
    Component Inspection 1.CHECK WASHER SWITCH 1. Turn ignition switch OFF. 2. Disconnect combination switch connector. 3. Check continuity between the combination switch terminals. A : Terminal 4 B : Terminal 6 C : Terminal 3 D : Terminal 1 Is the inspection result normal? YES >> IN ...

    Power supply and ground circuit
    Power window main switch POWER WINDOW MAIN SWITCH : Diagnosis Procedure 1.CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY 1. Turn ignition OFF. 2. Disconnect power window main switch connector. 3. Check voltage between power window main switch harness connector and ground. (): RHD models Is the ...

    Additional service when replacing TCM
    Description Always perform the following items when the TCM is replaced. CHECK LOADING OF CALIBRATION DATA The TCM acquires calibration data (individual characteristic value) of each solenoid that is stored in the ROM assembly (in the control valve). This enables the TCM to perform accurate ...