DTC B1443/43: Air Outlet Damper Control Servo Motor Circuit: Procedure

1. Connect Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn Techstream main switch on.
3. Select the items below in the Data List, and read the value displayed on Techstream.
   DATA LIST / AIR CONDITIONER
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Air Outlet Servo Pulse(D)	Air outlet control servo motor target pulse / Min.: 0, Max.: 255	FACE: 8 (pulse) B/L: 30 (pulse) FOOT: 67 (pulse) FOOT/DEF: 80 (pulse) DEF: 97 (pulse)	-

   OK

   The display is as specified in the normal condition column.

   Result

   Result	Proceed to
   NG	A
   OK (Checking from PROBLEM SYMPTOMS TABLE)	B
   OK (Checking from DTC)	C

B → See step   4 

C → See step   3 

A: Go to next step 

1. Replace the air outlet control servo motor. Refer to REMOVAL .

NEXT: Go to next step 

1. Clear the DTC. Refer to DTC CHECK / CLEAR .
2. Check for DTC. Refer to DTC CHECK / CLEAR .

   OK

   DTC B1443/43 is not output.

NG → REPAIR OR REPLACE AIR CONDITIONING HARNESS 

OK → END (AIR OUTLET CONTROL SERVO MOTOR IS DEFECTIVE)