DTC B1442/42 Air Inlet Damper Control Servo Motor Circuit: Description
WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
The damper servo (air inlet control) sends pulse signals to indicate the damper position to the air conditioning amplifier. The air conditioning amplifier activates the motor (normal or reverse) based on these signals to move the air inlet control damper to the appropriate position, which controls the intake air settings (FRESH, FRESH / RECIRCULATION and RECIRCULATION).
HINT:
Confirm that there are no mechanical problems because this DTC can be output when either a damper link or damper is mechanically locked.
DTC DETECTION CONDITION AND TROUBLE AREA REFERENCE
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| B1442/42 | Air inlet damper position does not change even if air conditioning amplifier operates air inlet damper control servo motor |
|