Nissan Juke Service and Repair Manual : PTC heater

Component Function Check

1.CHECK PTC HEATER OPERATION

1. Start the engine.

2. Operate fan control dial.

3. Operate temperature control dial to full hot position.

4. Check for warm air at discharge air outlet.

NOTE

:
• Engine must be cold.

• Battery must be charged.

Is the inspection result normal? YES >> INSPECTION END NO >> Refer to HAC-176, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK FUSE AND FUSIBLE LINK

1. Turn ignition switch OFF.

2. Check 30A fuses (Nos. 32 and 36) and 40A fusible link (letter F).

NOTE

:
Refer to PG-23, "Fuse and Fusible Link Arrangement".

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

NO >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is blown.

2.CHECK PTC RELAY POWER SUPPLY

1. Disconnect PTC relay connector.

2. Turn ignition switch ON.

3. Check voltage between PTC relay harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> Repair harness or connector between PTC relay and fuse or fusible link.

3.CHECK PTC RELAY CONTROL SIGNAL CIRCUIT FOR OPEN

1. Disconnect A/C auto amp. connector.

2. Check continuity between PTC relay harness connector and A/C auto amp. harness connector.

Is the inspection result normal?


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

NO >> Repair harness or connector.

4.CHECK PTC HEATER POWER SUPPLY CIRCUIT FOR OPEN

Check continuity between PTC relay harness connector and PTC heater harness connector.

Is the inspection result normal?


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

NO >> Repair harness or connector.

5.CHECK PTC HEATER GROUND CIRCUIT FOR OPEN

Check continuity between PTC heater harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 6.

NO >> Repair harness or connector.

6.CHECK PTC RELAY

Check PTC relay. Refer to HAC-177, "Component Inspection (PTC Relay)".

Is the inspection result normal? YES >> GO TO 7.

NO >> Replace malfunctioning PTC relay.

7.CHECK PTC HEATER

Check PTC heater. Refer to HAC-178, "Component Inspection (PTC Heater)".

Is the inspection result normal? YES >> Replace A/C auto amp. Refer to HAC-188, "Removal and Installation".

NO >> Replace PTC heater.

Component Inspection (PTC Relay)

1.CHECK PTC RELAY

1. Remove PTC relay.

2. Check continuity between PTC relay terminals 3 and 5 when the voltage is supplied between terminals 1 and 2.


Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace malfunctioning PTC relay.

Component Inspection (PTC Heater)

1.CHECK PTC HEATER

Check resistance between PTC heater terminals.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace PTC heater.

    Magnet clutch
    Component Function Check 1.CHECK MAGNET CLUTCH OPERATION Perform auto active test of IPDM E/R. Refer to PCS-12, "Diagnosis Description" (with Intelligent Key) or PCS- 43, "Diagnosi ...

    Other materials:

    B257B, B257C ambient sensor
    DTC Logic DTC DETECTION LOGIC NOTE: • If DTC is displayed along with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to HAC- 51, "DTC Logic". • If DTC is displayed along with DTC U1010, first perform the trouble diagnosis for DTC U1010. HAC-52, "DTC Logic ...

    Rear door lock
    Exploded View 1. Outside handle assembly 2. Rear door sealing screen 3. Door lock assembly 4. TORX bolt 5. Inside handle : Clip : Pawl : Vehicle front : Do not reuse : N·m (kg-m, in-lb) : Body grease Door lock DOOR LOCK : Removal and Installation REMOVAL 1. Remove rear door glass ...

    P0327, P0328 KS
    DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test. TESTING CONDITION: Before performing the following proced ...