DTC U0322-51: Software Incompatibility with Body Control Module Not Programmed; DTC U0322-57: Software Incompatibility with Body Control Module Invalid/Incompatible Software Component [12/2024 - ]: Procedure

1. Check the main body ECU (multiplex network body ECU) part number.
   1. Check if the part number of the main body ECU (multiplex network body ECU) installed to the vehicle is correct.

      OK

      The part number is correct.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) 

Refer to REMOVAL [12/2024 - ]

Result: 

OK 

See step  2

1. Recheck for DTCs and check if the same DTC is output again.

   Body Electrical > Blind Spot Monitor "B" > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   U0322-51 or U0322-57 is output	B

Result: 

B 

REPLACE BLIND SPOT MONITOR SENSOR (B) 

Refer to REMOVAL [12/2024 - ]

Result: 

A 

See step  3

1. Recheck for DTCs and check if the same DTC is output again.

   Body Electrical > Blind Spot Monitor "A" > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   U0322-51 or U0322-57 is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK 

Refer to METHOD TO SIMULATE PROBLEM SYMPTOMS [12/2024 - ]

Result: 

B 

REPLACE BLIND SPOT MONITOR SENSOR (A) 

Refer to REMOVAL [12/2024 - ]