Diagnosis Procedure
1.
CHECK AROUND BOSE SPEAKER AMP.
Check whether there is any factor which causes a temperature rise near BOSE speaker amp.
Was there any factor?
Remove a factor.
.
2.
PERFORM DTC CONFIRMATION PROCEDURE AGAIN
With M.U.T.-III SE
Move the vehicle to a cool place.
Turn ignition switch ON.
Erase DTC.
Perform DTC confirmation procedure again. Refer to
DTC Description
.
Check DTC.
Is DTC "B1A80-4B" detected again?
Replace BOSE speaker amp. Refer to
Removal and Installation
.
INSPECTION END
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Remove a factor.
.
With M.U.T.-III SE.Replace BOSE speaker amp. Refer to Removal and Installation.INSPECTION END