DTC B1783: Front Left Occupant Detection Sensor Collision Detection; DTC B1784: Front Right Occupant Detection Sensor Collision Detection; DTC B1785: Rear Left Occupant Detection Sensor Collision Detection; DTC B1786: Rear Right Occupant Detection Sensor Collision Detection [11/2021 - ]: Procedure

1. Check the operation status of the airbag system.

   Is there any airbag system operated?

   Result	Proceed to
   Yes (Replace the seat assembly)	A
   No (Perform [Rezero])	B

Result: 

B 

See step  3

Result: 

A 

See step  2

Refer to REMOVAL [11/2021 - ]

Result

Result: 

NEXT 

PERFORM INSPECTION REFERRING TO INSPECTION PART AFTER COLLISION 

Refer to INSPECTION [11/2021 - ]

1. Perform [Rezero].

   Refer to UTILITY [11/2021 - 12/2023] , or refer to UTILITY [12/2023 - ]

   Is [Rezero] completed?

   Result	Proceed to
   Yes	A
   No (Perform operation according to an error code displayed when [Rezero] fails)	B

Result: 

B 

PERFORM OPERATION ACCORDING TO AN ERROR CODE DISPLAYED WHEN [REZERO] FAILS 

Refer to UTILITY [11/2021 - 12/2023] , or refer to UTILITY [12/2023 - ]

Result: 

A 

See step  4

1. Using the GTS, perform the clear memory of [Airbag].

   Body Electrical > Airbag > Clear DTCs 

2. Execute the inspection mode.

   Refer to OPERATION CHECK [11/2021 - ]

3. Read the DTC of [Airbag] using the GTS.

   Body Electrical > Airbag > Trouble Codes 

   Is DTC B1783, B1784, B1785 or B1786 displayed? (Current code)

   Result	Proceed to
   Yes (Replace the airbag ECU assembly)	A
   No (Currently, it is normal)	B

Result: 

A 

REPLACE THE AIRBAG ECU ASSEMBLY 

Refer to REMOVAL [11/2021 - ]

Result: 

B 

CURRENTLY, IT IS NORMAL