Mazda CX-7 2007 Workshop Manual page 1119

STEP
• Turn the ignition switch to the ON position.
4
• Inspect the voltage at the following climate control
unit terminal (wiring harness-side).
— Terminal F (evaporator temperature sensor
input signal)
• Is the voltage normal? (Approx. 5 V)
CLIMATE CONTROL UNIT CONNECTOR
Q O M
W U S
X V T R P N
End Of Sie
DTC B2832
Airflow mode actuator (motor lock) system
Note
DTC B2832
• DTC B2832 will be detected when the ignition switch is turned to the ON position and approx.
30 s have passed since the mode actuator is operated.
• Airflow mode actuator malfunction
POSSIBLE
• A/C unit (airflow mode link and airflow mode crank) malfunction
CAUSE
• Open or short circuit in wiring harness between climate control unit and airflow mode actuator
Diagnostic Procedure
STEP
• Disconnect the airflow mode actuator connector.
1
• Connect battery positive voltage to airflow mode
actuator terminal D (or terminal F) and terminal F
(or terminal D) to ground.
• Does the airflow mode actuator operate?
• Remove the airflow mode actuator.
2
• Operate the airflow mode main link manually.
• Does the airflow mode main link operate
smoothly?
• Disconnect the climate control unit connector.
3
• Connect battery positive voltage to climate control
unit terminal O (or terminal Q) and terminal Q (or
terminal O) to ground.
• Does the airflow mode actuator operate?
• Turn the ignition switch to the ON position.
4
• Press the MODE switch to change the mode
(operate the airflow mode actuator) and wait for 30
s or more.
• Perform the DTC inspection.Is DTC B2832
indicated?
CLIMATE CONTROL UNIT CONNECTOR
Q O
W U S M
V T R P N
X
End Of Sie
ON-BOARD DIAGNOSTIC
INSPECTION
K I G C A
E
L D
J H F B
INSPECTION
K I G C A
E
L J H D
F B
Yes The system is normal at present. (Clear the malfunction
from the memory.)
No Inspect the connection of the climate control unit
connector. (See 07-40-13 CLIMATE CONTROL UNIT
INSPECTION [FULL-AUTO AIR CONDITIONER].)
EVAPORATOR TEMPERATURE SENSOR CONNECTOR
Yes Connect the connector, then go to Step 3.
No Go to the next step.
Yes Replace the airflow mode actuator. (See 07-40-10
AIRFLOW MODE ACTUATOR REMOVAL/
INSTALLATION.)
No Replace the airflow mode main link, airflow mode sub
link, and the airflow mode crank.
Yes Inspect the connection of the climate control unit
connector. (See 07-40-13 CLIMATE CONTROL UNIT
INSPECTION [FULL-AUTO AIR CONDITIONER].)
No Repair the wiring harness.
Yes Recheck malfunction symptoms, then repeat from Step
1 if the malfunction recurs.
No DTC troubleshooting completed.
AIRFLOW MODE ACTUATOR CONNECTOR
F
*
ACTION
B A
id070200801100
ACTION
D C B A
07-02–9
07-02