Mazda CX-7 2007 Workshop Manual page 1186

Term Signal
Connected to
inal name
Rear
window Rear window
G
defroster defroster relay
switch
Passenger
compartmen Passenger
H t compartment
temperature temperature sensor
sensor input
Motor
I Air intake actuator
operation
• Air mix actuator
• Airflow mode
J +5V actuator
• Solar radiation
sensor
Motor
K Air intake actuator
operation
Ambient
Ambient
L temperature
temperature sensor
sensor input
M IG2 A/C 10 A fuse
Potentiomet
N Air mix actuator
er input
Motor Airflow mode
O
operation actuator
07-40–14
CONTROL SYSTEM
Measurement
Voltage (V)
condition
Rear window defroster
switch OFF
Rear window defroster
switch ON
Compared with
temperature detected
Refer to
by passenger
graph 2
compartment
temperature sensor
Moving towards
RECIRCULATE
Moving towards
FRESH
IG SW ON
IG SW OFF
Moving towards
FRESH
Moving towards
RECIRCULATE
Compared with
temperature detected Refer to
by ambient graph 1
temperature sensor
IG SW ON
IG SW OFF 1.0 or less
Set temperature at
MAX COLD
Set temperature at
MAX HOT
Moving towards VENT
Moving towards
DEFROSTER
Inspection item (s)
• Wiring harness: continuity, short circuit
(Climate control unit— rear window
B+
defroster relay: G— E)
• Rear window defroster relay
• Climate control unit: terminal voltage (D,
0.06 M)
• Climate control unit
• Wiring harness: continuity (Climate
control unit—passenger compartment
temperature sensor: H—B, C—A)
• Wiring harness: short circuit (Climate
control unit—passenger compartment
temperature sensor: H—B)
• Passenger compartment temperature
sensor
• Climate control unit: terminal voltage (D,
M)
• Wiring harness: continuity, short circuit
10.75
(Climate control unit— air intake
actuator: I— F, K— D)
• Air intake actuator
0.72
• Wiring harness: short circuit (Climate
control unit—air mix actuator, airflow
mode actuator, Solar radiation sensor:
J—A, B, A)
• Air mix actuator
5.11
• Airflow mode actuator
• Solar radiation sensor
• Climate control unit: terminal voltage (D,
M)
• Climate control unit replacement
0.01
• Wiring harness: continuity, short circuit
10.89
(Climate control unit— air intake
actuator: K— D, I— F)
• Air intake actuator
0.72
• Wiring harness: continuity (Climate
control unit—ambient temperature
sensor: C—A, L—B)
• Wiring harness: short circuit (Climate
control unit—ambient temperature
sensor: L—B)
• Ambient temperature sensor
• Climate control unit: terminal voltage (D,
M)
• Wiring harness: continuity, short circuit
(Climate control unit— fuse: M— A/C
B+
10 A)
• A/C 10 A fuse
• Wiring harness: continuity, short circuit
(Climate control unit— fuse: M— A/C
10 A)
• Wiring harness: continuity, short circuit
0.72
(Climate control unit— air mix actuator:
N— C)
• Air mix actuator
4.42
• Climate control unit: terminal voltage (J)
• Wiring harness: continuity, short circuit
10.39
(Climate control unit— airflow mode
actuator: O— D, Q— F)
0.74
• Airflow mode actuator