8 Heating, Ventilation and A/C System
8.1 Warnings and Notices.....................8-2
8.1.1 Warnings and Notices...........................................8-2
8.2 Automatic Air-conditioning..............8-3
8.2.1 Specifications...........................................8-3
8.2.1.1 Fastener Tightening Specifications....................8-3
8.2.1.2 Cooling System Parameters...............................8-3
8.2.1.3 System Capacity................................................8-4
8.2.1.4 Indoor / Outdoor Temperature Sensor Resistance
Properties.......................................................................8-5
8.2.2 Description and Operation........................8-6
8.2.2.1 Description and Operation..................................8-6
8.2.3 System Working Principle.........................8-9
8.2.3.1 Air-conditioning Control Panel Features Description
.......................................................................................8-9
8.2.3.2 Automatic Air-conditioning Working Principle.......8-
11
8.2.4 Component Locator................................8-13
8.2.4.1 Air-conditioning System Component Component
Locator.........................................................................8-13
8.2.4.2 Air-conditioning Assembly Component Locator. . .8-
14
8.2.4.3 Air-conditioning Panel Diagram........................8-15
8.2.5 Disassemble View..................................8-16
8.2.5.1 Disassemble View............................................8-16
8.2.6 Schematic...............................................8-18
8.2.6.1 Air-conditioning Control System Schematic.....8-18
8.2.6.2 Air-conditioning System Circuit Schematic.......8-19
8.2.7 Diagnostic Information and Procedures.....8-
21
8.2.7.1 Diagnosis Description.......................................8-21
8.2.7.2 Visual Inspection..............................................8-21
8.2.7.3 Air-conditioning Control Module Terminal List......8-
21
8.2.7.4 Data Stream List...............................................8-23
8.2.7.5 DTC Code Table..............................................8-23
8.2.7.6 Air-conditioning Clutch Inoperative...................8-24
8.2.7.7 Air-conditioning Blower Inoperative..................8-31
8.2.7.8 Insufficient Cooling...........................................8-35
8.2.7.9 Insufficient Heating...........................................8-37
8.2.7.10 Air-conditioning Refrigerant Recovery and Filling.
8-38
8.2.8 Removal and Installation........................8-42
8.2.8.1 Air-conditioning Control Panel Replacement........8-
42
8.2.8.2 Air-conditioning Pipe Replacement..................8-44
8.2.8.3 Air-conditioning Pressure Switch Replacement. . .8-
47
8.2.8.4 Air Filter Replacement......................................8-48
8.2.8.5 Air-conditioning Assembly Replacement..........8-49
8.2.8.6 Expansion Valve Replacement........................8-54
8.2.8.7 Air-conditioning Compressor Replacement......8-57
8.2.8.8 Blower Speed Control Module Replacement.......8-
58
8.2.8.9 Blower Motor Replacement..............................8-59
8.2.8.10 Warm and Cold Air Adjust Motor and Inside and
Outside Circulation Motor Replacement.......................8-60
8.2.8.11 Instrument Panel Air Duct Replacement........8-61
8.2.8.12 Air-conditioning Ventilation Pipe Replacement. .8-
63
8.2.8.13 Heater Core Replacement..............................8-63
8.2.8.14 Evaporator Core Replacement.......................8-64
8.2.8.15 Condenser Replacement................................8-66
8.2.8.16 Ambient and Sun Light Sensor Replacement....8-
68
8.2.8.17 Outside Temperature Sensor Replacement.......8-
68
8.2.8.18 Inside Temperature Sensor Replacement......8-69
8.2.8.19 Evaporator Temperature Sensor and Heat Core
Temperature Sensor Replacement..............................8-70
Heating, Ventilation and A/C System
Table of Contents
8-1
EC718/EC718RV EC715/EC715RV 10/2009
Summary of Contents for EC715 2009
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