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-294, "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? 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 PTC heater control unit connector.
2. Check continuity between PTC relay harness connector and PTC heater control unit harness connector.
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? 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? YES >> GO TO 6.
NO >> Repair harness or connector.
6.CHECK PTC RELAY
Check PTC relay. Refer to HAC-295, "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-296, "Component Inspection (PTC Heater)".
Is the inspection result normal? YES >> Replace PTC heater control unit.
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? 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? 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:
Diagnosis system (ipdm e/r) (with intelligent key system)
Diagnosis Description
AUTO ACTIVE TEST
Description
In auto active test mode, the IPDM E/R sends a drive signal to the following
systems to check their operation.
• Oil pressure warning lamp (only for K9K engine models)
• Rear window defogger
• Front wiper motor
• Parking lamp
• License p ...
Water pump
Exploded View
1. Gasket
2. Water pump
: N·m (kg-m, ft-lb)
: Always replace after every
disassembly.
Removal and Installation
REMOVAL
1. Drain engine coolant from radiator. Refer to CO-11, "Draining".
CAUTION:
• Perform this step when the engine is cold.
• Never spill engin ...
4WD branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the following terminals and connectors for damage, bend and loose
connection (unit side and connector
side).
- 4WD control module
- Harness connecoto ...
