DTC U0322-51: Software Incompatibility with Body Control Module Not Programmed; DTC U0322-57: Software Incompatibility with Body Control Module Invalid/Incompatible Software Component [09/2022 - ]: Procedure

1. Check for DTCs of the main body ECU (multiplex network body ECU).

   Body Electrical > Main Body > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

B 

GO TO DTC CHART 

Result: 

A 

See step  2

1. Using the GTS, perform a health check.

   OK

   ECUs other than the millimeter wave radar sensor assembly do not output specification information mismatch DTCs related to the main body ECU (multiplex network body ECU).

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [09/2022 - ] 

Result: 

OK 

See step  3

1. Check that the main body ECU (multiplex network body ECU) that is installed is a Toyota genuine part.

   OK

   The main body ECU (multiplex network body ECU) that is installed is a Toyota genuine part.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to  REMOVAL [09/2022 - ] 

Result: 

OK 

See step  4

1. Check for DTCs of hybrid system.

   Powertrain > Engine > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

B 

GO TO HYBRID CONTROL SYSTEM. Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2022 - ] 

Result: 

A 

See step  5

1. Using the GTS, perform a health check.

   OK

   ECUs other than the millimeter wave radar sensor assembly do not output specification information mismatch DTCs related to the ECM.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [09/2022 - ] 

Result: 

OK 

See step  6

1. Check that the ECM that is installed is a Toyota genuine part.

   OK

   The ECM that is installed is a Toyota genuine part.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE ECM. Refer to  REMOVAL [09/2022 - ] 

Result: 

OK 

See step  7

1. Check for DTCs.

   Body Electrical > Front Radar Sensor > Trouble Codes 

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

A 

END 

Result: 

B 

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY. Refer to  REMOVAL [09/2022 - ]