DTC B2345: Motor Control Relay Stuck ON [06/2017 - ]: Procedure

1. Clear the DTCs.

   Refer to DTC CHECK / CLEAR [03/2017 - ]

   Body Electrical > Sliding Roof > Clear DTCs 

   Body Electrical > Sliding Sunshade > Clear DTCs 

2. Check for DTCs.

   Refer to DTC CHECK / CLEAR [06/2017 - ]

   Body Electrical > Sliding Roof > Trouble Codes 

   Body Electrical > Sliding Sunshade > Trouble Codes 

   OK

   DTC B2345 is not output.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

USE SIMULATION METHOD TO CHECK. 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]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2020 - 08/2021]  , or refer to  HOW TO PROCEED WITH TROUBLESHOOTING [08/2021 - ] 

Result: 

NG 

See step  2

1. Check the parts from which this DTC has been output.

   Result

   Result	Proceed to
   DTC output from sliding roof ECU (sliding roof drive gear assembly)	A
   DTC output from roof sunshade ECU (sliding roof drive gear assembly)	B

Result: 

A 

REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY). Refer to  REMOVAL [06/2017 - 10/2020]  , or refer to  REMOVAL [10/2020 - ] 

Result: 

B 

REPLACE ROOF SUNSHADE ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY). Refer to  REMOVAL [06/2017 - 10/2020]  , or refer to  REMOVAL [10/2020 - ]