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-diagnosis with CONSULT-III before performing symptom diagnosis. If
any malfunction result or
DTC is detected, perform the corresponding diagnosis.
1.CHECK COOLING SYSTEM
1. Check engine coolant level and check for leakage. Refer to the following.
- HR16DE: Refer to CO-37, "Inspection".
- MR16DDT: Refer to CO-11, "Inspection".
- K9K: Refer to CO-62, "Inspection".
2. Check radiator cap (HR16DE and MR16DDT) or reservoir tank cap (K9K). Refer to the following.
- HR16DE: Refer to CO-40, "RADIATOR CAP : Inspection".
- MR16DDT: Refer to CO-15, "RADIATOR CAP : Inspection".
- K9K: Refer to CO-65, "Inspection".
3. Check water flow sounds of the engine coolant. Refer to the following.
- HR16DE: Refer to CO-38, "Refilling".
- MR16DDT: Refer to CO-12, "Refilling".
- K9K: Refer to CO-63, "Refilling".
Is the inspection result normal? YES-1 >> HR16DE and MR16DDT: GO TO 3.
YES-2 >> K9K: GO TO 2.
NO >> Refill engine coolant and repair or replace the parts depending on the inspection results.
2.CHECK PTC HEATER OPERATION
Check PTC heater operation. Refer to HAC-294, "Component Function Check".
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace parts depending on the inspection results.
3.CHECK HEATER HOSE
Check installation of heater hose by visually or touching.
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace parts depending on the inspection results.
4.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 5.
NO-1 >> HR16DE: Replace heater core. Refer to HA-56, "HEATER CORE : Removal and Installation".
NO-2 >> MR16DDT: Replace heater core. Refer to HA-116, "HEATER CORE : Removal and Installation".
NO-3 >> K9K: Replace heater core.
5.CHECK AIR LEAKAGE FROM EACH DUCT
Check duct and nozzle, etc. of air conditioning system for air leakage.
Is the inspection result normal? YES >> Check air mix door cable installation and air mix door operation.
NO >> Repair or replace parts depending on the inspection results.
Insufficient cooling
Description
Symptom
• Insufficient cooling
• No cool air comes out. (Air flow volume is normal.)
Diagnosis Procedure
NOTE:
Perform self-diagnosis with CONSULT-III before performing symptom diagn ...
Compressor dose dot operate
Description
SYMPTOM
Compressor dose not operate.
Diagnosis Procedure
NOTE:
• Perform self-diagnosis with CONSULT-III before performing symptom diagnosis.
If any malfunction result or
DTC is de ...
Other materials:
DTC/Circuit diagnosis
POSITION SWITCH
BACK-UP LAMP SWITCH : Component Inspection
1.CHECK BACK-UP LAMP SWITCH
1. Disconnect position switch connector. Refer to TM-24, "Removal and
Installation".
2. Check continuity between position switch terminals.
Is the inspection result normal?
YES >> INSPE ...
Checking bulbs
With all doors closed, apply the parking brake and place the ignition switch
in the ON position without starting the engine. The following lights will come on:
,
or
,
,
,
,
,
The following lights come on briefly and then go off (if so equipped):
,
or
,
,
,
,
,
,
,
,
,
If ...
Diagnosis and repair workflow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.INTERVIEW FOR MALFUNCTION
Interview the symptom to the customer.
>> GO TO 2.
2.SYMPTOM CHECK
Check the symptom from the customer's information.
>> GO TO 3.
3.BASIC INSPECTION
Check the operation of each part. Check that any s ...