DTC B1785: Front Occupant Classification Sensor LH Collision Detection [06/2018 - 08/2021]: Procedure

1. Using the Techstream, perform Zero Point Calibration.

   Refer to INITIALIZATION [06/2018 - 08/2021]

   OK

   "Zero Point Calibration is complete." is displayed.

   Result

   Result	Proceed to
   OK	A
   NG (for TMC Made)	B
   NG (for TMMK Made)	C

Result: 

B 

See step  3

Result: 

C 

See step  5

Result: 

A 

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

   Result	Proceed to
   OK	A
   NG (for TMC Made)	B
   NG (for TMMK Made)	C

Result: 

A 

END 

Result: 

C 

See step  5

Result: 

B 

See step  3

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

   Refer to REMOVAL [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - 08/2021]

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 [06/2018 - 08/2021]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END 

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 [06/2018 - 08/2020] , or refer to REMOVAL [08/2020 - 08/2021]

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

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4