DTC B1785: Front Occupant Classification Sensor LH Collision Detection [09/2020 - ]: Procedure

1. Using the Techstream, perform Zero Point Calibration and Sensitivity Check.

   Refer to INITIALIZATION [04/2013 - ]

   Body Electrical > Occupant Detection > Utility 

   Tester Display
   Zero Point Calibration & Sensitivity Check

   OK

   "Zero Point Calibration is complete." and "Sensitivity Check is complete." are displayed.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  5

Result: 

OK 

See step  2

1. Clear the DTCs stored in the occupant detection ECU.

   Refer to DTC CHECK / CLEAR [04/2013 - ]

   Body Electrical > Occupant Detection > Clear DTCs 

2. Clear the DTCs stored in the airbag sensor assembly.

   Refer to DTC CHECK / CLEAR [09/2020 - ]

   Body Electrical > SRS Airbag > Clear DTCs 

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

   Refer to DTC CHECK / CLEAR [04/2013 - ]

   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.

6. Turn the engine switch off.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  3

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

   Refer to REMOVAL [04/2013 - ]

3. 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 and Sensitivity Check.

   Refer to INITIALIZATION [04/2013 - ]

   Body Electrical > Occupant Detection > Utility 

   Tester Display
   Zero Point Calibration & Sensitivity Check

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END 

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

   Refer to REMOVAL [04/2013 - ]

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

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Using the Techstream, perform Zero Point Calibration and Sensitivity Check.

   Refer to INITIALIZATION [04/2013 - ]

   Body Electrical > Occupant Detection > Utility 

   Tester Display
   Zero Point Calibration & Sensitivity Check

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END