Mazda 6 2002, Руководство по ремонту

Страница: 1200 / 1248

CONTROL SYSTEM
U–49
U
1O Water
temperature
sensor input Water temperature
sensor Depends on temperature
surrounding sensor
See Figure
4
•
Inspect for continuity
(Climate control unit—water
temperature sensor: 1O—A,
1I—B)
•
Inspect for short circuit
(Climate control unit—water
temperature sensor: 1O—A)
•
Inspect water temperature
sensor
•
Inspect terminal voltage of
climate control unit (2H, 2L)
1P A/C Refrigerant
pressure switch
Fan switch at OFF
12
•
Inspect for continuity or
short circuit (Climate control
unit—refrigerant pressure
switch: 1P—A (Dual-
pressure type), 1P—C
(Triple-pressure type))
(Refrigerant pressure
switch—PCM: B—1AC)
•
Inspect refrigerant pressure
switch
•
Inspect PCM terminal
voltage (1AC)
(See
F–45 PCM
INSPECTION )
Fan switch at 1st
position, A/C switch ON
Below 1.0
•
Inspect terminal voltage of
climate control unit (2H, 2L)
1Q Evaporator
temperature
sensor input
signal Evaporator
temperature sensor Depends on temperature
surrounding sensor
See Figure
1
•
Inspect for continuity
(Climate control unit—
evaporator temperature
sensor: 1Q—A, 1I—B)
•
Inspect for short circuit
(Climate control unit—
evaporator temperature
sensor: 1Q—A)
•
Inspect evaporator
temperature sensor
•
Inspect terminal voltage of
climate control unit (2H, 2L)
1R — — — — —
1S Solar radiation
sensor input Solar radiation
sensor Incandescent light ( 60W )
shining on solar
radiation sensor from
distance of
approx.
100mm {3.9 in}
4.0
•
Inspect for continuity or
short circuit (Climate control
unit—solar radiation sensor:
1S—B, 1B—A)
•
Inspect terminal voltage of
climate control unit (1B)
•
Inspect solar radiation
sensor
Light to solar radiation
sensor block
Below 1.0
1T GND Ground Under any condition
Below 1.0
•
Inspect for continuity
(Climate control unit—
ground: 1T—GND)
•
Inspect center panel
1U Potentiometer
signal Air mix actuator Set temperature at MAX
COLD
0.6
•
Inspect for continuity or
short circuit (Climate control
unit—air mix actuator: 1U—
C)
•
Inspect air mix actuator
•
Inspect terminal voltage of
climate control unit (1B)
Set temperature at MAX
HOT
4.3
1V — — — — —
Terminal Signal Connected to Test condition Voltage (V) Action