DTC B124D: Lost Communication with AFS LIN; DTC B2432: Lost Communication with Automatic High Beam Sensor [08/2015 - 08/2019]: Procedure

1. Clear the DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   OK

   DTC B124D or B2432 is not output.

Result: 

OK 

USE SIMULATION METHOD TO CHECK 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - 08/2019] )

Result: 

NG 

See step  2

1. Disconnect the A46 headlight swivel ECU connector.
2. Disconnect the W5 inner rear view mirror connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   A46-30 (LH+) - W5-12 (LIN)	Always	Below 1 Ω
   A46-30 (LH+) - Body ground	Always	10 kΩ or higher

Result: 

NG 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  3

1. Temporarily replace the inner rear view mirror with a new or normally functioning one (Refer to REMOVAL [08/2015 - 08/2019] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [08/2015 - 08/2019] ).

   OK

   DTC B124D or B2432 is not output.

Result: 

OK 

END (REPLACE INNER REAR VIEW MIRROR ASSEMBLY) 

(Refer to REMOVAL [08/2015 - 08/2019] )

Result: 

NG 

REPLACE HEADLIGHT SWIVEL ECU ASSEMBLY 

(Refer to REMOVAL [08/2015 - 08/2019] )