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 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 the air conditioning system for air leakage.
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace parts depending on the inspection results.
6.CHECK SETTING OF TEMPERATURE SETTING TRIMMER
1. Check setting value of temperature setting trimmer. Refer to HAC-139, "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-188, "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:
U1000 can comm circuit
Description
CAN (Controller Area Network) is a serial communication line for real time
application. It is an on-vehicle multiplex
communication line with high data communication speed and excellent error
detection ability. Many electronic
control units are equipped onto a vehicle, and each co ...
Thermostat
Exploded View
1. Radiator hose (upper)
2. Water inlet
3. Rubber ring
4. Thermostat
A. To radiator
: Always replace after every
disassembly.
: N·m (kg-m, ft-lb)
Removal and Installation
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-37, "Draining".
CAUTION:
P ...
Service information for electrical incident
Work Flow
WORK FLOW
Control Units and Electrical Parts
PRECAUTIONS
• Never reverse polarity of battery terminals.
• Install only parts specified for a vehicle.
• Before replacing the control unit, check the input and output and functions of
the component parts.
• Do not apply excessive ...