B1449

DTC B1449/49 Rear Air Outlet Damper Control Servo Motor Circuit

DESCRIPTION

DTC Detection Condition:

The rear outlet damper servo (for LH side) sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal or reverse) based on these signals to move the rear outlet damper (for LH side) to the appropriate position, which controls the air outlet modes.

HINT: Confirm that no mechanical problem is present because this diagnostic code can be output when either a damper link or damper is mechanically locked.

Wiring Diagram:

Step 1:

Step 2-3:

Step 3 (Continued):

INSPECTION PROCEDURE

NOTE: If this DTC is output, perform the following procedures before beginning the INSPECTION PROCEDURE.

a. Change the air outlet mode position for the rear LH and RH seats to "FOOT".
b. Turn the engine switch off, and wait approximately 90 seconds.
c. Turn the engine switch on (IG).
d. Clear DTCs.
e. With the air outlet mode position for the rear LH and RH seats on "FOOT", wait approximately 45 seconds.
f. Check for DTCs. If this DTC is not output, there is no malfunction. If this DTC is output, perform the given INSPECTION PROCEDURE.