Dtc 21 - Mazda 6 2002 Workshop Manual

H EATER AND AIR CONDITIONER SYSTEMS
U
LOCATION INDEX .................................................U-3
BASIC SYSTEM ..................................................U-3
CONTROL SYSTEM............................................U-4
SERVICE WARNINGS ...........................................U-8
HANDLING REFRIGERANT................................U-8
STORING REFRIGERANT..................................U-8
SERVICE CAUTIONS.............................................U-8
HANDLING INSUFFICIENT REFRIGERANT
LEVEL...............................................................U-8
HANDLING COMPRESSOR OIL.........................U-8
REFRIGERANT SYSTEM SERVICE
PROCEDURES.......................................................U-9
GAS CHARGING SET INSTALLATION ..............U-9
RECOVERY .........................................................U-9
CHARGING..........................................................U-9
REFRIGERANT PRESSURE CHECK ...............U-12
REFRIGERANT SYSTEM PERFORMANCE
TEST...............................................................U-13
BASIC SYSTEM ...................................................U-14
BLOWER UNIT REMOVAL/INSTALLATION.....U-14
BLOWER UNIT DISASSEMBLY/ASSEMBLY ...U-14
AIR FILTER REMOVAL/INSTALLATION ..........U-15
AIR FILTER INSPECTION.................................U-15
A/C UNIT REMOVAL/INSTALLATION ..............U-15
A/C UNIT DISASSEMBLY/ASSEMBLY .............U-18
EXPANSION VALVE
REMOVAL/INSTALLATION............................U-21
EVAPORATOR INSPECTION ...........................U-22
HEATER CORE INSPECTION ..........................U-23
REAR HEAT DUCT
REMOVAL/INSTALLATION............................U-23
A/C COMPRESSOR
REMOVAL/INSTALLATION............................U-23
CONDENSER REMOVAL/INSTALLATION.......U-24
CONDENSER INSPECTION .............................U-24
REFRIGERANT LINES
REMOVAL/INSTALLATION............................U-25
CONTROL SYSTEM.............................................U-30
AIR INTAKE ACTUATOR
REMOVAL/INSTALLATION............................U-30
AIR INTAKE ACTUATOR INSPECTION ...........U-30
AIR MIX ACTUATOR
REMOVAL/INSTALLATION............................U-31
AIR MIX ACTUATOR INSPECTION..................U-32
AIRFLOW MODE ACTUATOR
REMOVAL/INSTALLATION............................U-33
AIRFLOW MODE ACTUATOR INSPECTION ...U-34
BLOWER MOTOR
REMOVAL/INSTALLATION............................U-35
BLOWER MOTOR INSPECTION ......................U-35
RESISTOR REMOVAL/INSTALLATION ...........U-35
RESISTOR INSPECTION..................................U-36
POWER MOS FET
REMOVAL/INSTALLATION............................U-36
POWER MOS FET INSPECTION .....................U-36
MAGNETIC CLUTCH
DISASSEMBLY/ASSEMBLY ..........................U-36
MAGNETIC CLUTCH ADJUSTMENT ...............U-38
MAGNETIC CLUTCH INSPECTION..................U-38
SOLAR RADIATION SENSOR
REMOVAL/INSTALLATION ............................U-39
SOLAR RADIATION SENSOR INSPECTION ...U-39
AMBIENT TEMPERATURE SENSOR
REMOVAL/INSTALLATION ............................U-39
AMBIENT TEMPERATURE SENSOR
INSPECTION ..................................................U-40
CABIN TEMPERATURE SENSOR
REMOVAL/INSTALLATION ............................U-40
CABIN TEMPERATURE SENSOR
INSPECTION ..................................................U-41
EVAPORATOR TEMPERATURE SENSOR
REMOVAL/INSTALLATION ............................U-41
EVAPORATOR TEMPERATURE SENSOR
INSPECTION ..................................................U-41
WATER TEMPERATURE SENSOR
REMOVAL/INSTALLATION ............................U-42
WATER TEMPERATURE SENSOR
INSPECTION ..................................................U-42
REFRIGERANT PRESSURE SWITCH
REMOVAL/INSTALLATION ............................U-42
REFRIGERANT PRESSURE SWITCH
INSPECTION ..................................................U-43
CLIMATE CONTROL UNIT REMOVAL .............U-44
CLIMATE CONTROL UNIT INSTALLATION .....U-45
CLIMATE CONTROL UNIT
DISASSEMBLY/ASSEMBLY ..........................U-45
CLIMATE CONTROL UNIT WIRE
ADJUSTMENT ................................................U-46
CLIMATE CONTROL UNIT INSPECTION.........U-47
FAN SWITCH INSPECTION..............................U-52
DEFROSTER SWITCH INSPECTION...............U-52
ON-BOARD DIAGNOSTIC ...................................U-53
DIAGNOSTIC TROUBLE CODE NUMBER
INSPECTION ..................................................U-53
DTC 02...............................................................U-56
DTC 06...............................................................U-56
DTC 07...............................................................U-57
DTC 10...............................................................U-57
DTC 11...............................................................U-57
DTC 12...............................................................U-58
DTC 13...............................................................U-58
DTC 14...............................................................U-59
DTC 15...............................................................U-59
DTC 18...............................................................U-59
DTC 19...............................................................U-60
DTC 21...............................................................U-60
DTC 22...............................................................U-61
DTC 58...............................................................U-61
DTC 59...............................................................U-61
DTC 02, 18, 21 (WHEN TWO OR MORE
DTCS ARE INDICATED AT THE
SAME TIME) ...................................................U-62
DTC 06, 10, 12, 14, 18, 21 (WHEN TWO OR
MORE DTCS ARE INDICATED AT THE
SAME TIME) ...................................................U-62
U
U–1