DTC B1785: Front Occupant Classification Sensor LH Collision Detection [08/2021 - ]: Procedure

1. Using the Techstream, perform Zero Point Calibration.

   Refer to INITIALIZATION [08/2021 - ]

   OK

   "Zero Point Calibration is complete." is displayed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  3

Result: 

OK 

See step  2

1. Turn the engine switch on (IG), and wait for at least 60 seconds.
2. Clear the DTCs stored in the occupant detection ECU.

   Body Electrical > Occupant Detection > Clear DTCs 

3. Clear the DTCs stored in the airbag ECU assembly.

   Body Electrical > SRS Airbag > Clear DTCs 

4. Turn the engine switch off.
5. Turn the engine switch on (IG), and wait for at least 10 seconds.
6. Check for DTCs.

   Body Electrical > Occupant Detection > Trouble Codes 

   OK

   DTC B1785 is not output.

   HINT: 

   Codes other than DTC B1785 may be output at this time, but they are not related to this check.

7. Turn the engine switch off.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  3

1. Turn the engine switch off.
2. Disconnect the cable from the negative (-) battery terminal.
3. Replace the separate type front seat cushion spring assembly RH.

   Refer to REMOVAL [08/2021 - 09/2022] , or refer to REMOVAL [09/2022 - ]

4. Connect the cable to the negative (-) battery terminal.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Using the Techstream, perform Zero Point Calibration.

   Refer to INITIALIZATION [08/2021 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END