Mazda 6 2002 Workshop Manual page 1151

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