Precautions For Supplemental Restraint System Operation
24
Sioner” .................................................................. 4 Order
25
Precautions For Working With Hfc-134A (R-134A).. ... 4 Air Mix Door Control
25
Contaminated Refrigerant ........................................ 4 Blower Speed Control
26
General Refrigerant Precautions .............................. 5 Intake Door Control
26
Precautions For Leak Detection Dye ......................... 5 Mode Door Control
26
A/C Identification Label ............................................ 5 Magnet Clutch Control
26
Precautions For Refrigerant Connection ................... 5 Overview Of Control System
26
Connection ...................................................... 6 Air Conditioner (A/C) Switch
28
Precautions For Service Equipment .........................11 Blower Control Dial/Off Switch
28
Recovery/Recycling Equipment .............11 Recirculation () Switch
28
Electronic Leak Detector .......................11 Defroster Switch
28
Vacuum Pump ................................................. 12 Mode Dial
28
Manifold Gauge Set .................................... 12 Rear Window Defogger Switch
28
Service Hoses ............................................... 12 Discharge Air Flow
29
Service Couplers ........................................ 13 System Description
30
Charging Cylinder ...................................... 13 Can Communication System Description
30
Hfc-134A (R-134A) Service Tools And Equipmen.t. . 14 Accurate Repair
31
Commercial Service Tools ...................................... 17 Work Flow
31
Refrigeration System ..................................... 18 Symptom Table
31
Refrigerant Flow ....................................... 18 Engine Compartment - Qr25De
32
Refrigerant System Protection ............................... 18 Engine Compartment - Mr20De
33
Refrigerant Pressure Sensor ............. 18 Passenger Compartment
34
Pressure Relief Valve ............................... 18 Circuit Diagram
35
Component Layout ................................................. 19 Wiring Diagram — Heater —
36
Oil ............................................................................ 21 Wiring Diagram — A/C,M —
38
Oil ...................................................................... 21 Inspection Of Front Air Control
41
Air Conditioner Control ............................... 24 Tor Terminal Layout
41
Front Air Control .......................................41 In-Cabin Microfilter
79
Operational Check ..................................................43 Removal And Installation
79
Checking Blower .........................................43 Function
79
Checking Discharge Air ............................43 Replacement Timing
79
Checking Recirculation ............................43 Replacement Procedures
79
Checking Temperature Decrease .........43 Heater & Cooling Unit Assembly
81
Checking Temperature Increase ..........43 Removal And Installation
81
Checking A/C Switch (If Equipped) .........43 Removal
81
Power Supply And Ground Circuit For Front Air Con- Installation
82
Trol ...........................................................................44 Heater Core
83
Inspection Flow ...........................................44 Removal And Installation
83
Component Description ............................45 Removal
83
Diagnostic Procedure ..............................45 Installation
83
Lan System Circuit ................................................47 Intake Door Motor
84
Diagnostic Procedure ..............................47 Removal And Installation
84
Mode Door Motor Circuit ........................................50 Removal
84
Inspection Flow ...........................................50 Installation
84
System Description ....................................51 Mode Door Motor
85
Component Description ............................51 Removal And Installation
85
Diagnostic Procedure ..............................51 Removal
85
Air Mix Door Motor Circuit ......................................52 Installation
85
Inspection Flow ...........................................52 Air Mix Door Motor
86
System Description ....................................53 Removal And Installation
86
Component Description ............................53 Removal
86
Diagnostic Procedure ..............................53 Installation
86
Intake Door Motor Circuit ........................................54 Fan Control Amplifier
87
Inspection Flow ...........................................54 Removal And Installation
87
System Description ....................................55 Removal
87
Component Description ............................55 Installation
87
Diagnostic Procedure ..............................55 Ducts And Grilles
88
Blower Motor Circuit ...............................................56 Removal And Installation
88
Inspection Flow ...........................................56 Center Ventilator Grille Rh, Lh
89
System Description ....................................57 Upper Defroster Grille
89
Component Description ............................57 Side Ventilator Grille Rh, Lh
90
Diagnostic Procedure ..............................58 Side Defroster Grille Rh, Lh
90
Component Inspection ..............................61 Side Ventilator Duct Rh, Lh
90
Magnet Clutch Circuit .............................................62 Defroster Nozzle
90
Inspection Flow ...........................................62 Side Defroster Duct Rh, Lh
90
System Description ....................................63 Front Foot Duct Rh
90
Diagnostic Procedure ..............................63 Front Foot Duct Lh
90
Insufficient Cooling .................................................66 Rear Floor Connector Duct
90
Inspection Flow ...........................................66 Rear Floor Duct Rh
91
Performance Test Analysis ....................68 Rear Floor Duct Lh
91
Performance Chart ...................................70 Refrigerant Lines
92
Trouble Diagnosis For Abnormal Hfc-134A (R-134A) Service Procedure
92
Insufficient Heating .................................................74 Ment
92
Inspection Flow ...........................................74 Components
94
Inspection Flow ...........................................76 Mr20De
97
Control Unit ........................................................77 Removal
97
Removal And Installation ........................................77 Installation
97
Front Blower Motor .......................................78 Qr25De
98
Removal And Installation ........................................78 Removal
98
Removal ...........................................................78 Installation
98
Mr20De
99
Removal
99
Inspection After Removal ..................... 100 Installation
105
Inspection After Installation ............. 101 Removal
105
Break-In Operation ................................... 101 Installation
106
Removal And Installation For Compressor Clutch - Removal And Installation For Evaporator
106
Qr25De ............................................................... 101 Removal
106
Removal ......................................................... 101 Installation
107
Inspection After Removal ..................... 102 Removal And Installation For Expansion Valve
107
Installation ................................................. 103 Removal
107
Inspection After Installation ............. 104 Installation
107
Break-In Operation ................................... 104 Checking For Refrigerant Leaks
107
Hose And Muffler Pipe .......................................... 104 Leak Detector
108
Removal ......................................................... 104 Dye Injection
108
Installation ................................................. 104 Electronic Refrigerant Leak Detector
108
Hose ..................................................................... 104 Detector
108
Removal ......................................................... 104 Checking Procedure
109
Installation ................................................. 105 Service Data And Specifications (Sds)
111
Removal And Installation For High-Pressure Pipe . 105 Service Data And Specifications (Sds)
111
Removal ......................................................... 105 Compressor
111
Removal And Installation For Refrigerant Pressure Refrigerant
111
Sensor .................................................................. 105 Engine Idling Speed
111
Removal ......................................................... 105 Belt Tension
111
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