Mazda 2: HVAC System
HVAC SYSTEM WIRING DIAGRAM

FOREWORD
- The areas for inspection (steps) are given according to various circuit
malfunctions. Use
the following chart to verify the symptoms of the trouble in order to
diagnose the
appropriate area.
TROUBLESHOOTING INDEX

NO.1 INSUFFICIENT AIR (OR NO AIR) BLOWN FROM VENTS [MANUAL AIR
CONDITIONER]

Diagnostic procedure


NO.2 AMOUNT OF AIR BLOWN FROM VENTS DOES NOT CHANGE

Diagnostic procedure


NO.3 AIR INTAKE MODE DOES NOT CHANGE

Diagnostic procedure


NO.4 NO TEMPERATURE CONTROL WITH CLIMATE CONTROL UNIT

Diagnostic procedure



NO.5 WINDSHIELD FOGGED

Diagnostic procedure


NO.6 AIR FROM VENTS NOT COLD ENOUGH

Diagnostic procedure






NO.7 NO COOL AIR

Diagnostic procedure





NO.8 NOISE WHILE OPERATING A/C SYSTEM

Diagnostic procedure




READ NEXT:
REFRIGERANT SYSTEM SERVICE WARNINGS
Handling Refrigerant
Avoid breathing air conditioning refrigerant or lubricant vapor.
Exposure may
irritate eyes, nose and throat. Also, due to environmental c
CAUTION:
Do not exceed the specification when charging the system with
refrigerant. Doing so
will decrease the efficiency of the air conditioner or damage the
refrigeration cycle
parts.
Charg
HVAC BASIC SYSTEM LOCATION INDEX
Refrigerant lines
(See REFRIGERANT LINE REMOVAL/INSTALLATION.)
Air intake duct
(See AIR INTAKE DUCT REMOVAL/INSTALLATION.)
(See AIR INTAKE DUCT DISASSEMB
SEE MORE:
EMISSION SYSTEM LOCATION INDEX
Engine Compartment Side
EGR valve
(See EGR VALVE REMOVAL/INSTALLATION)
(See EGR VALVE INSPECTION)
Ventilation hose
Purge solenoid valve
(See PURGE SOLENOID VALVE REMOVAL/INSTALLATION)
(See PURGE SOLENOID VALVE INSPECTION)
Positive crankcase ventil
CLIMATE CONTROL UNIT REMOVAL/INSTALLATION
1. Disconnect the negative battery cable.
2. Remove the following parts:
Glove compartment (See GLOVE COMPARTMENT REMOVAL/INSTALLATION).
Dashboard under cover (See DASHBOARD UNDER COVER REMOVAL/INSTALLATION).
Heat duct (RH) (See HEAT DUCT COMPONENT REMO
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