DTC 22
id070200803400
DTC 22
Airflow mode actuator (potentiometer) system inspection
POSSIBLE CAUSE
• Airflow mode actuator malfunction
• Climate control unit malfunction
• 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
INSPECTION
ACTION
1
• Inspect airflow mode actuator.
• Is it okay?
Yes
Go to next step.
No
Replace airflow mode actuator.
2
• Disconnect climate control unit connector (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
Yes
Repair wiring harness.
No
Go to next step.
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?
Yes
Repair wiring harness.
No
This system is normal at present. (Erase the past failure from memory.)