DTC B237A-49: Left Door Mirror Fold Current Detection Circuit Internal Electronic Failure [11/2023 - ]: Description

The outer mirror control ECU assembly is equipped with a retraction motor lock current detection circuit. When a current detection circuit malfunction is detected during an electric retraction operation cycle 3 times or more, a DTC is stored.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	DTC Output from	Priority
B237A-49	Left Door Mirror Fold Current Detection Circuit Internal Electronic Failure	There is history of suspension due to lock detection A current detection circuit malfunction is detected (50 mA or less, or 4 A or more) during an electric retraction operation cycle 3 times or more 50 mA or less: 10 seconds 4 A or more: 100 ms	Outer rear view mirror assembly LH Outer mirror control ECU assembly LH	Mirror L	A