DTC B1785: Front Occupant Classification Sensor LH Collision Detection [12/2015 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON, and wait for at least 60 seconds.
3. Using the Techstream, perform the zero point calibration (Refer to INITIALIZATION [12/2015 - ] ).

Result: 

NG 

See step  3

Result: 

OK 

See step  2

1. Turn the ignition switch to ON, and wait for at least 60 seconds.
2. Clear any DTCs stored in the memory (Refer to DTC CHECK / CLEAR [12/2015 - ] ).

   HINT: 

   • First clear DTCs stored in the occupant classification ECU and then in the center airbag sensor assembly.
   • Use the Techstream to clear the DTCs of the occupant classification ECU, otherwise the DTCs cannot be cleared.
3. Turn the ignition switch off.
4. Turn the ignition switch to ON, and wait for at least 60 seconds.
5. Using the Techstream, check for DTCs of the occupant classification ECU (Refer to DTC CHECK / CLEAR [12/2015 - ] ).

   OK

   DTC B1785 is not output.

   HINT: 

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

   RESULT
   
   

   Result	Proceed to
   NG	A
   OK	B

Result: 

B 

See step  5

Result: 

A 

See step  3

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
3. Replace the front seat cushion spring assembly RH.
   • for Manual seat (Refer to REMOVAL [12/2015 - ] ).
   • for Power seat (Refer to REMOVAL [12/2015 - ] ).

   HINT: 

   Perform the inspection using parts from a normal vehicle when possible.

Result: 

NEXT 

See step  4

1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to ON, and wait for at least 60 seconds.
4. Using the Techstream, perform the zero point calibration (Refer to INITIALIZATION [12/2015 - ] ).

Result: 

NEXT 

See step  5

1. Using the Techstream, perform the sensitivity check (Refer to INITIALIZATION [12/2015 - ] ).

   Standard range

   27 to 33 kg (59.5 to 72.8 lb)

Result: 

NEXT 

END