NISSAN TIIDA 2007 Service Repair Manual

EXPANSION VALVE
HA-49
< ON-VEHICLE REPAIR >
C
D
E
F
G
H
J
K
L
MA
B
HA
N
O
P
EXPANSION VALVE
Removal and Installation of Expansion Valve - MR18DE, HR16DE and K9K
INFOID:0000000001527645
REMOVAL
1. Use the recovery/recycling equipment to evacuate the refrigerant. Refer to HA-21, "HFC-134a (R-134a)
Service Procedure".
2. Remove cowl top cover. Refer to EXT-20, "
Removal and Installation".
3. Remove lower dash insulator.
4. Disconnect low-pressure flexible hose and high-pressure pipe from evaporator. Refer to HA-27, "
Compo-
nent".
5. Remove expansion valve bolts (A), and then remove expansion
valve (1).
CAUTION:
Cap or wrap the joint of the pipe with suitable material such
as vinyl tape to avoid the entry of air.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
 Replace O-rings of evaporator with new ones, and apply compressor oil when installing.
 When charging the refrigerant, check for leaks. Refer to HA-22, "
Checking of Refrigerant Leaks".
SJIA0683E

HA-50
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
MR18DE EngineINFOID:0000000001396455
Compressor
Oil
Refrigerant
HR16DE EngineINFOID:0000000001396456
Compressor
Oil
Refrigerant
K9K EngineINFOID:0000000001396457
Compressor
ModelCR-10
Ty p eVanes rotary (5 vanes)
Displacement
cm
3 (in3 ) / revolutionMaximum 96 (5.86)
Direction of rotation Clockwise (viewed from drive end)
Drive beltPoly-V Ribbed Belt (6-Groove)
Ty p eNISSAN A/C System Oil Type R
Capacity
m (US fl oz, lmp fl oz)Total in system 120 (4.1, 4.2)
Compressor (service part) charg-
ing amountRefer to HA-19, "
Maintenance of Oil Quantity in Compressor".
Ty p eHFC-134a (R-134a)
Capacity
kg (lb)0.45 ± 0.05 (0.99 ± 0.11)
ModelCR-10
Ty p eVane rotary (5 vanes)
Displacement
cm
3 (in3 ) / revolutionMaximum 96 (5.86)
Direction of rotation Clockwise (viewed from drive end)
Drive beltPoly-V Ribbed Belt (7-Groove)
Ty p eNISSAN A/C System Oil Type R
Capacity
m (US fl oz, lmp fl oz)Total in system 120 (4.1, 4.2)
Compressor (service part) charg-
ing amountRefer to HA-19, "
Maintenance of Oil Quantity in Compressor".
Ty p eHFC-134a (R-134a)
Capacity
kg (lb)0.45 ± 0.05 (0.99 ± 0.11)
ModelXXXXX
Ty p eVariable displacement swash plate
Displacement
cm
3 (in3 ) / revolutionMaximum XXX (XXXX)

SERVICE DATA AND SPECIFICATIONS (SDS)
HA-51
< SERVICE DATA AND SPECIFICATIONS (SDS)
C
D
E
F
G
H
J
K
L
MA
B
HA
N
O
P
Oil
Refrigerant
Direction of rotation Clockwise (viewed from drive end)
Drive beltPoly-V Ribbed Belt (6-Groove)
Typ eNISSAN A/C System Oil Type S
Capacity
m (US fl oz, lmp fl oz)Total in system 100 (3.4, 3.5)
Compressor (service part) charg-
ing amountRefer to HA-19, "
Maintenance of Oil Quantity in Compressor".
Typ eHFC-134a (R-134a)
Capacity
kg (lb)0.45 ± 0.05 (0.99 ± 0.11)

HAC-1
VENTILATION, HEATER & AIR CONDITIONER
C
D
E
F
G
H
J
K
L
M
SECTION HAC
A
B
HAC
N
O
P
CONTENTS
HEATER & AIR CONDITIONING CONTROL SYSTEM
MANUAL AIR CONDITIONER
BASIC INSPECTION ....................................
5
DIAGNOSIS AND REPAIR WORKFLOW ..........5
How to Perform Trouble Diagnosis For Quick and
Accurate Repair ........................................................
5
INSPECTION AND ADJUSTMENT .....................6
Operational Check ....................................................6
FUNCTION DIAGNOSIS ...............................8
FUNCTION INFORMATION ................................8
Component Part Location .........................................8
REFRIGERATION SYSTEM ..............................10
Refrigerant Cycle ....................................................10
Refrigerant System Protection ................................10
AIR CONDITIONER CONTROL .........................11
System Diagram ......................................................11
System Description .................................................11
Discharge Air Flow ..................................................11
Switches And Their Control Function ......................12
Component Description ...........................................13
CAN COMMUNICATION SYSTEM ....................14
System Description .................................................14
DIAGNOSIS SYSTEM (BCM) ............................15
CONSULT-III Function (BCM) .................................15
COMPONENT DIAGNOSIS .........................16
MODE DOOR .....................................................16
Mode Door Diagnostic Procedure ...........................16
AIR MIX DOOR ...................................................17
Air Mix Door Diagnostic Procedure .........................17
INTAKE DOOR ...................................................18
Intake Door Diagnostic Procedure ..........................18
BLOWER MOTOR ............................................19
Front Blower Motor Component Function Check ....19
Front Blower Motor Diagnosis Procedure ................19
MAGNET CLUTCH ...........................................23
System Description ..................................................23
Magnet Clutch Component Function Check ............23
Magnet Clutch Diagnosis Procedure .......................24
INTAKE SENSOR .............................................30
Component Inspection .............................................30
Intake Sensor Diagnosis Procedure ........................30
Intake Sensor Component Inspection .....................31
PTC HEATER CONTROL SYSTEM .................33
PTC HEATER (300 WATT) ........................................33
PTC HEATER (300 WATT) : PTC Heater System
Description ...............................................................
33
PTC HEATER (300 WATT) : PTC Heater Compo-
nent Description .......................................................
34
PTC HEATER (300 WATT) : PTC Heater (300
Watt) Diagnosis Procedure ......................................
35
PTC HEATER (300 WATT) : PTC Heater (300
Watt) Component Inspection ...................................
41
PTC HEATER (1500 WATT) ......................................43
PTC HEATER (1500 WATT) : System Description ....43
PTC HEATER (1500 WATT) : Component De-
scription ...................................................................
44
PTC HEATER (1500 WATT) : PTC Heater (1500
Watt) Diagnosis Procedure ......................................
45
PTC HEATER (1500 WATT) : PTC Heater (1500
Watt) Component Inspection ...................................
50
ECU DIAGNOSIS .........................................53
AIR CONDITIONER CONTROL ........................53
Reference Value ......................................................53
Wiring Diagram - Heater Control (without A/C) - .....54
Wiring Diagram - Air Conditioner Control - ..............56

HAC-2
PTC HEATER CONTROL SYSTEM ..................63
PTC HEATER (300 WATT) .......................................63
PTC HEATER (300 WATT) : Wiring Diagram -
PTC Heater (300 Watt) - .........................................
63
PTC HEATER (1500 WATT) .....................................67
PTC HEATER (1500 WATT) : Wiring Diagram -
PTC Heater (1500 Watt) - .......................................
68
SYMPTOM DIAGNOSIS .............................72
AIR CONDITIONER CONTROL ........................72
Symptom Matrix Chart ..........................................72
INSUFFICIENT COOLING .................................73
Component Function Check ...................................73
Performance Test Diagnoses .................................74
Performance Chart .................................................75
Test Reading ..........................................................76
Trouble Diagnoses for Unusual Pressure ...............77
INSUFFICIENT HEATING .................................81
Component Function Check ...................................81
NOISE ................................................................83
Component Function Check ...................................83
PRECAUTION .............................................84
PRECAUTIONS .................................................84
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
84
Precaution for Procedures Without Cowl Top Cov-
er ............................................................................
84
Working with HFC-134a (R-134a) ..........................84
Precaution for Service Equipment ..........................85
AUTO AIR CONDITIONER (W/O NAVI)
BASIC INSPECTION ...................................
86
DIAGNOSIS AND REPAIR WORKFLOW .........86
How to Perform Trouble Diagnosis For Quick And
Accurate Repair ......................................................
86
INSPECTION AND ADJUSTMENT ...................87
Operational Check ..................................................87
FUNCTION DIAGNOSIS .............................89
FUNCTION INFORMATION ..............................89
Component Part Location .......................................89
REFRIGERATION SYSTEM ..............................91
Refrigerant Cycle ....................................................91
Refrigerant System Protection ................................91
AUTOMATIC AIR CONDITIONER SYSTEM .....92
Control System Diagram ........................................92
Control System Description ....................................92
Discharge Air Flow .................................................94
Switches And Their Control Function ......................95
CAN COMMUNICATION SYSTEM ...................96
System Description .................................................96
DIAGNOSIS SYSTEM (BCM) ............................97
CONSULT-III Function (BCM) ................................97
SELF-DIAGNOSIS FUNCTION .........................98
Front Air Control Self-Diagnosis .............................98
A/C System Self-Diagnosis Code Chart ...............104
COMPONENT DIAGNOSIS ......................106
MODE DOOR MOTOR .....................................106
System Description ...............................................106
Mode Door Motor Component Function Check ....107
Mode Door Motor Diagnosis Procedure ................109
AIR MIX DOOR MOTOR ..................................110
System Description ...............................................110
Air Mix Door Motor Component Function Check ..111
Air Mix Door Motor Diagnosis Procedure ..............112
INTAKE DOOR MOTOR ...................................114
System Description ...............................................114
Intake Door Motor Component Function Check ....115
Intake Door Motor Diagnosis Procedure ...............116
BLOWER MOTOR CONTROL SYSTEM .........118
System Description ...............................................118
Front Blower Motor Component Function Check ..119
Front Blower Motor Diagnosis Procedure .............120
Front Blower Motor Component Inspection ..........123
MAGNET CLUTCH ...........................................124
System Description ...............................................124
Magnet Clutch Component Function Check .........124
Magnet Clutch Diagnosis Procedure ....................125
AMBIENT SENSOR ..........................................130
Component Description ........................................130
Ambient Sensor Diagnosis Procedure ..................130
Ambient Sensor Component Inspection ...............131
IN-VEHICLE SENSOR ......................................133
Component Description ........................................133
In-Vehicle Sensor Diagnosis Procedure ...............133
In-Vehicle Sensor Component Inspection .............135
SUNLOAD SENSOR ........................................136
System Description ...............................................136
Sunload Sensor Diagnosis Procedure ..................136
Sunload Component Inspection ............................137
INTAKE SENSOR .............................................139
Component Inspection ..........................................139
Intake Sensor Diagnosis Procedure .....................139
Intake Sensor Component Inspection ...................140
PTC HEATER CONTROL SYSTEM .................142

HAC-3
C
D
E
F
G
H
J
K
L
MA
B
HAC
N
O
P PTC HEATER (300 WATT) .....................................
142
PTC HEATER (300 WATT) : PTC Heater System
Description ............................................................
142
PTC HEATER (300 WATT) : PTC Heater Compo-
nent Description ....................................................
143
PTC HEATER (300 WATT) : PTC Heater (300
Watt) Diagnosis Procedure ...................................
144
PTC HEATER (300 WATT) : PTC Heater (300
Watt) Component Inspection .................................
151
PTC HEATER (1500 WATT) ...................................153
PTC HEATER (1500 WATT) : System Description ..153
PTC HEATER (1500 WATT) : Component De-
scription .................................................................
154
PTC HEATER (1500 WATT) : PTC Heater (1500
Watt) Diagnosis Procedure ...................................
155
PTC HEATER (1500 WATT) : PTC Heater (1500
Watt) Component Inspection .................................
160
POWER SUPPLY AND GROUND CIRCUIT
FOR CONTROLLER ........................................
163
Component Description .........................................163
Front Air Control Component Function Check ......163
Front Air Control Power and Ground Diagnosis
Procedure ..............................................................
163
ECU DIAGNOSIS .......................................165
AIR CONDITIONER CONTROL .......................165
Front Air Control Terminals Reference Values .....165
Wiring Diagram - Air Conditioner Control - ............167
PTC HEATER CONTROL SYSTEM ................175
PTC HEATER (300 WATT) .....................................175
PTC HEATER (300 WATT) : Wiring Diagram -
PTC Heater (300 Watt) - .......................................
175
PTC HEATER (1500 WATT) ...................................179
PTC HEATER (1500 WATT) : Wiring Diagram -
PTC Heater (1500 Watt) - .....................................
180
SYMPTOM DIAGNOSIS ............................184
AIR CONDITIONER CONTROL .......................184
Symptom Matrix Chart .........................................184
INSUFFICIENT COOLING ...............................185
Component Function Check ..................................185
Performance Test Diagnoses ................................186
Performance Chart ................................................188
Test Reading .........................................................189
Trouble Diagnoses for Unusual Pressure .............189
INSUFFICIENT HEATING ................................193
Component Function Check ..................................193
NOISE ...............................................................195
Component Function Check ..................................195
SELF-DIAGNOSIS CANNOT BE PER-
FORMED ..........................................................
197
Self-Diagnosis .......................................................197
MEMORY FUNCTION DOES NOT OPERATE .198
Memory Function Check ........................................198
PRECAUTION ............................................199
PRECAUTIONS ...............................................199
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
199
Precaution for Procedures Without Cowl Top Cov-
er ...........................................................................
199
Working with HFC-134a (R-134a) .........................199
Precaution for Service Equipment .........................200
AUTO AIR CONDITIONER (W/NAVI)
BASIC INSPECTION .................................
201
DIAGNOSIS AND REPAIR WORKFLOW ......201
How to Perform Trouble Diagnosis For Quick And
Accurate Repair .....................................................
201
INSPECTION AND ADJUSTMENT ................202
Operational Check .................................................202
FUNCTION DIAGNOSIS ............................204
FUNCTION INFORMATION ............................204
Component Part Location ......................................204
REFRIGERATION SYSTEM ...........................206
Refrigerant Cycle ...................................................206
Refrigerant System Protection ...............................206
AUTOMATIC AIR CONDITIONER SYSTEM ..207
Control System Diagram .......................................207
Control System Description ...................................207
Discharge Air Flow ................................................208
Switches And Their Control Function ....................209
CAN COMMUNICATION SYSTEM .................211
System Description ................................................211
DIAGNOSIS SYSTEM (BCM) .........................212
CONSULT-III Function (BCM) ...............................212
SELF-DIAGNOSIS FUNCTION .......................213
Front Air Control Self-Diagnosis ............................213
Front Air Control Self-Diagnosis Code Chart .........218
COMPONENT DIAGNOSIS .......................219
MODE DOOR MOTOR ....................................219
System Description ................................................219
Mode Door Motor Component Function Check .....220
Mode Door Motor Diagnosis Procedure ................222
AIR MIX DOOR MOTOR .................................224
System Description ................................................224
Air Mix Door Motor Component Function Check ...225
Air Mix Door Motor Diagnosis Procedure ..............226

HAC-4
INTAKE DOOR MOTOR ..................................228
System Description ................................................228
Intake Door Motor Component Function Check ....229
Intake Door Motor Diagnosis Procedure ...............230
BLOWER MOTOR CONTROL SYSTEM ........232
System Description ................................................232
Front Blower Motor Component Function Check ...233
Front Blower Motor Diagnosis Procedure ..............234
Front Blower Motor Component Inspection ...........236
MAGNET CLUTCH ..........................................238
System Description ................................................238
Magnet Clutch Component Function Check ..........238
Magnet Clutch Diagnosis Procedure .....................239
AMBIENT SENSOR .........................................244
Component Description .........................................244
Ambient Sensor Diagnosis Procedure ...................244
Ambient Sensor Component Inspection ................245
IN-VEHICLE SENSOR .....................................247
Component Description .........................................247
In-Vehicle Sensor Diagnosis Procedure ................247
In-Vehicle Sensor Component Inspection .............249
SUNLOAD SENSOR .......................................250
Component Description .........................................250
Sunload Sensor Diagnosis Procedure ...................250
Sunload Sensor Component Inspection ................251
INTAKE SENSOR ............................................253
System Description ................................................253
Intake Sensor Diagnosis Procedure ......................253
Intake Sensor Component Inspection ...................254
PTC HEATER CONTROL SYSTEM ................256
PTC HEATER (300 WATT) ......................................256
PTC HEATER (300 WATT) : PTC Heater System
Description .............................................................
256
PTC HEATER (300 WATT) : PTC Heater Compo-
nent Description .....................................................
257
PTC HEATER (300 WATT) : PTC Heater (300
Watt) Diagnosis Procedure ....................................
258
PTC HEATER (300 WATT) : PTC Heater (300
Watt) Component Inspection .................................
265
PTC HEATER (1500 WATT) ....................................267
PTC HEATER (1500 WATT) : System Description ..267
PTC HEATER (1500 WATT) : Component De-
scription .................................................................
268
PTC HEATER (1500 WATT) : PTC Heater (1500
Watt) Diagnosis Procedure ....................................
269
PTC HEATER (1500 WATT) : PTC Heater (1500
Watt) Component Inspection .................................
274
POWER SUPPLY AND GROUND CIRCUIT
FOR CONTROLLER .........................................
277
Component Description ........................................277
A/C Auto Amp. Component Function Check .........277
A/C Auto Amp Power and Ground Diagnosis Pro-
cedure ...................................................................
278
ECU DIAGNOSIS ......................................279
AIR CONDITIONER CONTROL .......................279
Front Air Control Terminals Reference Values .....279
Wiring Diagram - Air Conditioner Control - ...........281
PTC HEATER CONTROL SYSTEM .................289
PTC HEATER (300 WATT) .....................................289
PTC HEATER (300 WATT) : Wiring Diagram -
PTC Heater (300 Watt) - .......................................
289
PTC HEATER (1500 WATT) ...................................293
PTC HEATER (1500 WATT) : Wiring Diagram -
PTC Heater (1500 Watt) - .....................................
294
SYMPTOM DIAGNOSIS ...........................298
AIR CONDITIONER CONTROL .......................298
Symptom Matrix Chart .........................................298
INSUFFICIENT COOLING ................................299
Component Function Check .................................299
Performance Test Diagnoses ...............................300
Performance Chart ................................................302
Test Reading .........................................................303
Trouble Diagnoses for Unusual Pressure .............303
INSUFFICIENT HEATING ................................307
Component Function Check .................................307
NOISE ...............................................................309
Component Function Check .................................309
SELF-DIAGNOSIS CANNOT BE PER-
FORMED ...........................................................
311
Self-Diagnosis .......................................................311
MEMORY FUNCTION DOES NOT OPERATE ..312
Memory Function Check .......................................312
PRECAUTION ...........................................313
PRECAUTIONS ................................................313
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...............................................................
313
Precaution for Procedures Without Cowl Top Cov-
er ...........................................................................
313
Working with HFC-134a (R-134a) .........................313
Precaution for Service Equipment ........................314

DIAGNOSIS AND REPAIR WORKFLOW
HAC-5
< BASIC INSPECTION >[MANUAL AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
MA
B
HAC
N
O
P
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
How to Perform Trouble Diagnosis For Quick and Accurate RepairINFOID:0000000001203051
DETAILED FLOW
1.LISTEN TO CUSTOMER COMPLAINT
Listen to customer complaint. Get detailed information about the conditions and environment when the symp-
tom occurs.
>> GO TO 2
2.VERIFY THE SYMPTOM WITH OPERATIONAL CHECK
Verify the symptom with operational check. Refer to HAC-6, "
Operational Check".
>> GO TO 3
3.GO TO APPROPRIATE TROUBLE DIAGNOSIS
Go to appropriate trouble diagnosis. Refer to XXXX SYMPTOM TABLE below.
>> GO TO 4
4.REPAIR OR REPLACE
Repair or replace the specific parts.
>> GO TO 5
5.FINAL CHECK
Final check.
Is the inspection result normal?
YES >> CHECK OUT
NO >> GO TO 3

HAC-6
< BASIC INSPECTION >[MANUAL AIR CONDITIONER]
INSPECTION AND ADJUSTMENT
INSPECTION AND ADJUSTMENT
Operational CheckINFOID:0000000001203052
The purpose of the operational check is to confirm that the system operates properly.
CHECKING BLOWER
1. Turn blower control dial clockwise to "1" position. Blower should operate on low speed.
2. Turn blower control dial clockwise to "2" position, and continue checking blower speed until all speeds are
checked.
3. Leave blower on Maximum speed.
If NG, go to trouble diagnosis procedure for xxx BLOWER MOTOR CIR HAC-19, "
Front Blower Motor Diagno-
sis Procedure".
If OK, continue the check.
CHECKING DISCHARGE AIR
1. Turn mode door control dial to each position.
2. Confirm that discharge air comes out according to the air distribution table. Refer to XXXX DISCHARGE
AIR FLOW.
If NG, go to trouble diagnosis procedure for HAC-16, "
Mode Door Diagnostic Procedure".
If OK, continue the check.
CHECKING RECIRCULATION
1. Set intake door lever to REC position.
2. Operate intake door lever to FRE position.
3. Listen for intake door position change (you should hear blower sound change slightly).
If NG, go to trouble diagnosis procedure for XXXX INTAKE DOOR.
If OK, continue the check.
CHECKING TEMPERATURE DECREASE
1. Turn temperature control dial counterclockwise to full cold position.
2. Check for cold air at discharge air outlets.
If NG, go to trouble diagnosis procedure for XXXX INSUFFICIENT COOLING.
If OK, continue the check.
CHECKING TEMPERATURE INCREASE
1. Turn temperature control dial clockwise to full hot position.
2. Check for hot air at discharge air outlets.
If NG, go to trouble diagnosis procedure for XXXX INSUFFICIENT HEATING.
If OK, continue the check.
CHECKING A/C SWITCH (IF EQUIPPED)
1. Turn fan control dial to the desired (1 to 4 speed) position.
2. Press A/C switch.
3. A/C switch indicator will turn ON.
• Confirm that the compressor clutch engages (sound or visual inspection).
If NG, go to trouble diagnosis procedure for XXXX MAG CLUTCH CIR.
If OK, continue the check.
CHECKING DEFROST A/C SWITCH (IF EQUIPPED)
1. Turn fan control dial to the desired (1 to 4 speed) position.
2. Turn mode dial to ( ) DEF.
3. Confirm that the compressor clutch engages (sound or visual inspection). Conditions : Engine running at normal operating temperature

INSPECTION AND ADJUSTMENT
HAC-7
< BASIC INSPECTION >[MANUAL AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
MA
B
HAC
N
O
P
If NG, go to trouble diagnosis procedure for XXXX MAG CLUTCH CIR .
If all operational checks are OK (symptom cannot be duplicated), go to XXXX WORK FLOW and perform tests
as outlined. If symptom appears, refer to XXXX WORK FLOW and perform applicable trouble diagnosis pro-
cedures.