heating NISSAN PATROL 2004 Electronic Repair Manual

\
HEATER&
AIR CONDITIONER
SECTION
HA
MODIFICATION NOTICE:
+ Wiring diagram has been changed.
+ Automatic A/C controller has been changed.
+ Front thermo amp. for auto A/C has been eliminated.
CONTENTS
AUTO
DESCRIPTION ...........................................................4002
Features (TB48 Engine Models) ...........................4002
REAR HEATER
TROUBLE DIAGNOSES ...........................................4003
Wiring Diagram Ð R/HEAT Ð/LHD Models .........4003
Wiring Diagram Ð R/HEAT Ð/RHD Models .........4004
MANUAL
TROUBLE DIAGNOSES ...........................................4005
Wiring Diagram Ð A/C, M Ð/Wagon and
Hardtop Models with ZD Engine ...........................4005
AUTO
DESCRIPTION...........................................................4007
Control Operation ..................................................4007
TROUBLE DIAGNOSES ...........................................4008
Circuit Diagram Ð A/C, A Ð/TB48 Engine ...........4008
Wiring Diagram Ð A/C, A Ð/TB48 Engine ...........4009
Circuit Diagram Ð A/C, A Ð/TB45 Engine ...........4013
Wiring Diagram Ð A/C, A Ð/TB45 Engine ...........4014
Circuit Diagram Ð A/C, A Ð/TD Engine ...............4017
Wiring Diagram Ð A/C, A Ð/TD Engine ...............4018
Circuit Diagram Ð A/C, A Ð/ZD Engine ...............4021
Wiring Diagram Ð A/C, A Ð/ZD Engine ...............4022
Self-diagnosis ........................................................4025
Operational Check .................................................4032
A/C System ............................................................4034 Mode Door Motor...................................................4035
Air Mix Door Motor ................................................4036
Intake Door Motor ..................................................4037
Blower Motor..........................................................4038
Magnet Clutch........................................................4039
Insufficient Cooling ................................................4052
Insufficient Heating ................................................4053
Self-diagnosis ........................................................4054
REAR COOLER
TROUBLE DIAGNOSES ...........................................4055
Wiring Diagram Ð R/COOL Ð/LHD Models with
Front Auto A/C .......................................................4055
Wiring Diagram Ð R/COOL Ð/LHD Models with
Front Manual A/C Except for TB45E Engine ........4057
Wiring Diagram Ð R/COOL Ð/LHD Models with
Front Manual A/C for TB45E Engine.....................4059
Wiring Diagram Ð R/COOL Ð/RHD Models with
Front Auto A/C .......................................................4061
Wiring Diagram Ð R/COOL Ð/RHD Models with
Front Manual A/C...................................................4063
COOL BOX
TROUBLE DIAGNOSES ...........................................4065
Wiring Diagram Ð COOL/B Ð/All Engines
Except TB48 and TB45E Wagon Models for the
Middle East ............................................................4065
Wiring Diagram Ð COOL/B Ð/TB48 and TB45E
Engine Wagon Models for the Middle East...........4066
HA-4001

Insufficient Heating
TROUBLE DIAGNOSIS PROCEDURE FOR INSUFFICIENT HEATING
SYMPTOM:
+Insufficient heating.
Inspection ¯ow
*1: HA-4032
*2: HA-4027
*3: HA-4028*4: HA-4030
*5: HA-100**6: HA-111*
*7: HA-4036
*: Refer to Y61 SERVICE MANUAL, Publication No. SM7E-2Y61G1.
RHA406I
TROUBLE DIAGNOSESAUTO
HA-4053