Mazda 2002 6 Workshop Manual page 1212

DTC 22
DTC 22 Airflow mode actuator (potentiometer) system inspection
• Airflow mode actuator malfunction
• Climate control unit malfunction
POSSIBLE
• Open circuit between airflow mode actuator and climate control unit
CAUSE
• Short circuit between airflow mode actuator (terminal C) and climate control unit (terminal 1W: 24-pin)
Diagnostic Procedure
STEP
• Inspect airflow mode actuator.
1
• Is it okay?
• Disconnect climate control unit connector
2
(24-pin) and air mix actuator connector.
• Is there open circuit between following
terminals of climate control unit connector
(24-pin) and airflow mode actuator
connector?
— 1B—B
— 1W—C
— 1I—A
• Is there short circuit to ground between
3
terminal 1W of climate control unit connector
(24-pin) and terminal C of airflow mode
actuator connector?
End Of Sie
DTC 58
DTC 58 Air mix actuator (motor lock) system inspection
• Air mix actuator malfunction
• A/C unit (air mix link and/or air mix crank) malfunction
POSSIBLE
• Climate control unit malfunction
CAUSE
• Open or short circuit between air mix actuator and climate control unit
Diagnostic Procedure
STEP
• Disconnect air mix actuator connector.
1
• Connect battery positive voltage to terminal
D (or terminal F) and ground to terminal F (or
terminal D) of air mix actuator connector.
• Does air mix actuator operate?
• Remove air mix actuator.
2
• Operate air mix link by hand.
• Does air mix link operate smoothly?
• Disconnect climate control unit connect (12-
3
pin).
• Connect battery positive voltage to terminal
2D (or terminal 2C) and ground to terminal
2C (or terminal 2D) of climate control unit
connector (24-pin).
• Does air mix actuator operate?
End Of Sie
DTC 59
DTC 59 Airflow mode actuator (motor lock) system inspection
• Airflow mode actuator malfunction
• A/C unit (airflow mode links and/or airflow mode cranks) malfunction
POSSIBLE
• Climate control unit malfunction
CAUSE
• Open or short circuit between airflow mode actuator and climate control unit
ON-BOARD DIAGNOSTIC
INSPECTION
INSPECTION
Yes Go to next step.
No Replace airflow mode actuator.
Yes Repair wiring harness.
No Go to next step.
Yes Repair wiring harness.
No This system is normal at present. (Erase the past failure
from memory.)
Yes Connect air mix actuator connector, then go to Step 3.
No Go to next step.
Yes Replace air mix actuator.
No Replace air mix link and/or air mix crank.
Yes Replace climate control unit.
No Repair wiring harness.
A6E857001038W14
ACTION
A6E857001038W15
ACTION
A6E857001038W16
U–61
U