Mazda 626 Station Wagon, Workshop Manual, Page: 551 / 577

TROUBLESHOOTING
TROUBLESHOOTING
FOREWORD
• The areas for inspection (steps) are given according to various circuit malfunctions. Use the chart below to
verify the symptoms of the trouble in order to diagnose the appropriate area.
TROUBLESHOOTING INDEX
No. TYPE
TROUBLESHOOTING
ITEM
DESCRIPTION PAGE
1 Semi-logic (With
front defroster
control)
Windshield fogged. • Air intake mode does not
change when climate
control unit is in
DEFROSTER mode.
• Climate control unit
FRESH indicator light
does not illuminate while
climate control unit is in
DEFROSTER mode.
U-18NO . 1 WINDSHIELD
FOGGED.
2 Full-logic No air conditioning system
functions operate.
• None of the air
conditioning system
functions operate, or else
climate control unit
indicator light does not
work.
U-20 NO. 2 NO AIR
CONDITIONING SYSTEM
FUNCTIONS OPERATE.
3 Indications of climate control
unit indicator light are
incorrect.
• Some indicator lights of
switches on climate
control unit do not
illuminate, or their
indications are incorrect.
U-21 NO. 3 INDICATIONS
OF CLIMATE CONTROL
UNIT INDICATOR LIGHT
ARE INCORRECT.
4 Insufficient air (or no air)
blown from vents.
• Problem with each vent
and/or duct.
U-23 NO. 4 INSUFFICIENT
AIR (OR NO AIR) BLOWN
FROM VENTS.
5 Amount of air blown from
vents does not change. • Malfunction in blower
system.
U-24 NO. 5 AMOUNT OF
AIR BLOWN FROM VENTS
DOES NOT CHANGE.
6 Airflow mode does not
change. • Airflow mode does not
change when operating
airflow mode.
U-24 NO. 6 AIRFLOW
MODE DOES NOT
CHANGE.
7 Air intake mode does not
change. • Air intake mode does not
change when operating
REC/FRESH mode.
• Air intake mode does not
change when climate
control unit is in
DEFROSTER mode.
U-27 NO. 7 AIR INTAKE
MODE DOES NOT
CHANGE.
8 No temperature control. • Temperature does not
change when operating
temperature control lever.
U-28 NO. 8 NO
TEMPERATURE CONTROL
9 Air from vents not cold
enough. • Magnetic clutch operates
but A/C system
malfunctions.
U-31 NO. 9 AIR FROM
VENTS NOT COLD
ENOUGH.
10
No cool air.
• Magnetic clutch does not
operate.
U-34 NO. 10 NO COOL AIR.
U -17