All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch [04/2018 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / Main Body / Clear DTCs.
5. Clear the DTCs.

   Body Electrical > Main Body > Clear DTCs 

6. Recheck for DTCs.

   Body Electrical > Main Body > Trouble Codes 

   OK

   DTC B1206 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO LIN COMMUNICATION SYSTEM (DTC B1206). Refer to  DTC B1206: P/W Master Switch Communication Stop; DTC B1273: Sliding Roof ECU Communication Stop; DTC B2321: D-Door Motor ECU Communication Stop; DTC B2322: P-Door Motor ECU Communication Stop; DTC B2323: RR-Door Motor ECU Communication Stop; DTC B2324: RL-Door Motor ECU Communication Stop [04/2018 - ] 

Result: 

OK 

See step  2

1. Replace the multiplex network master switch assembly.

   Refer to REMOVAL [04/2018 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Check that all doors can be locked and unlocked by the multiplex network master switch assembly.

   Refer to OPERATION CHECK [04/2018 - ]

   OK

   All doors can be locked and unlocked by the multiplex network master switch assembly.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) 

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [04/2018 - 08/2021]  , or refer to  REMOVAL [08/2021 - ]