DTC Description

DTC DETECTION LOGIC

note	If all of door motors DTC (B2480-93, B24F5-93, B24F6-93, B24F7-93, B24F8-93) are detected, check “DOOR MOTOR”. Refer to Diagnosis Procedure. : With rear air control

DTC No.	M.U.T.-III SE screen terms (Trouble diagnosis content)	DTC detection condition
B2480-93	Rear air mix door motor (Rear air mix door motor)	Diagnosis condition	When electric motor switch is ON
		Signal (Terminal)	LIN (door motor) signal
		Threshold	Drive error of air mix door motor (rear) is detected
		Diagnosis delay time	1 second or more

POSSIBLE CAUSE

Harness and connector [air mix door motor (rear) circuit is open or shorted to ground]
Air mix door motor (rear) installation condition
Air mix door motor (rear)
A/C amp.

FAIL-SAFE

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DTC CONFIRMATION PROCEDURE

1.PERFORM DIAGNOSTIC TROUBLE CODE

With M.U.T.-III SE

Change the power supply mode of the electric motor switch to ON (READY indicator: ON).
Select “Diagnostic Trouble Code” mode of “HVAC” using M.U.T.-III SE.
Check DTC.

Is DTC detected?

-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident

-2Confirmation after repair: INSPECTION END