DTC 22

id070200803400

DTC 22

Airflow mode actuator (potentiometer) system inspection
POSSIBLE CAUSE
•  Airflow mode actuator malfunction
•  Open circuit in wiring harness between A/C amplifier connector terminal 2P and airflow mode actuator connector terminal A
•  Open circuit in wiring harness between A/C amplifier connector terminal 2G and airflow mode actuator connector terminal E
•  Open circuit in wiring harness between A/C amplifier connector terminal 2N and airflow mode actuator connector terminal C
•  Short to ground in wiring harness between A/C amplifier connector terminal 2G and airflow mode actuator connector terminal E

Diagnostic Procedure

STEP

INSPECTION

ACTION
1
INSPECT AIRFLOW MODE ACTUATOR
•  Inspect the airflow mode actuator.
•  Is it normal?
Yes
Go to the next step.
No
Replace the airflow mode actuator.
(See AIRFLOW MODE ACTUATOR REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
2
INSPECT AIRFLOW MODE ACTUATOR (POTENTIOMETER) CIRCUIT FOR OPEN CIRCUIT
•  Disconnect the A/C amplifier connector (16-pin) and the airflow mode actuator connector.
•  Is there an open circuit in the wiring harness between the following terminals of the A/C amplifier connector (16-pin) and the airflow mode actuator connector?
―  2P—A
―  2G—E
―  2N—C
Yes
Repair the wiring harness.
No
Go to the next step.
3
INSPECT AIRFLOW MODE ACTUATOR (POTENTIOMETER) CIRCUIT FOR SHORT TO GROUND
•  Is there a short circuit to ground in the wiring harness between A/C amplifier connector (16-pin) terminal 2G and airflow mode actuator connector terminal E?
Yes
Repair the wiring harness.
No
The system is normal at present. (Clear the past malfunction from memory.)