DTC U023A: Lost Communication With Image Processing Module "A" [03/2017 - 10/2020]: Procedure

HINT: 

If DTC U023A is stored, the power steering system may be malfunctioning. Check for DTCs related to the power steering system first.

1. Check for DTCs.

   Chassis > EMPS > Trouble Codes 

   Result

   Result	Proceed to
   Power steering system DTCs are not output	A
   Power steering system DTCs are output	B

Result: 

B 

GO TO POWER STEERING SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - ] 

Result: 

A 

See step  2

1. Clear the DTCs.

   Chassis > Front Recognition Camera > Clear DTCs 

2. Perform the following procedure.

   HINT: 

   If the following procedure is not performed, the previously output DTC cannot be detected.

   1. Turn the ignition switch to ON and wait 8 seconds or more.
3. Check for DTCs.

   Chassis > Front Recognition Camera > Trouble Codes 

   Result

   Result	Proceed to
   DTC U023A is not output	A
   DTC U023A is output	B

Result: 

A 

USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 06/2017]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [06/2017 - 08/2018]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2018 - 09/2019]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [09/2019 - 03/2020]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2020 - 10/2020] 

Result: 

B 

REPLACE FORWARD RECOGNITION CAMERA. Refer to  COMPONENTS [03/2017 - 10/2020]