DTC Description

DTC DETECTION LOGIC

DTC No.	M.U.T.-III SE screen terms (Trouble diagnosis content)	DTC detection condition
B24F4-12	Heated steering wheel relay (Heated steering wheel relay)	Diagnosis condition	When electric motor switch is ON
		Signal (Terminal)	Heated steering wheel relay control circuit
		Threshold	Short to battery
		Diagnosis delay time	—

POSSIBLE CAUSE

Heated steering wheel relay
A/C amp.
Harness or connectors (heated steering wheel relay control circuit is shorted to battery)

FAIL-SAFE

—

DTC CONFIRMATION PROCEDURE

1.PERFORM DTC CONFIRMATION PROCEDURE

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