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

1. Clear the DTCs.

   Body Electrical > Mirror L > Clear DTCs 

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  2

1. Operate the door mirror electric retraction function.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Check for DTCs.

   Body Electrical > Mirror L > Trouble Codes 

   Result

   Result	Proceed to
   B237A-49 is output	A
   B237A-49 is not output	B

Result: 

B 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

Result: 

A 

See step  4

Refer to INSPECTION [12/2019 - ]

Result

Result: 

OK 

REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH. Refer to  REMOVAL [12/2019 - ] 

Result: 

NG 

REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to  REMOVAL [11/2023 - ]