Inspection Procedure

HINT

• If troubleshooting (wire harness inspection) is difficult to perform, remove the front passenger seat installation bolts to access the undersurface of the seat cushion.
• In the above case, hold the seat so that it does not fall down. Holding the seat for a long period of time may damage the seat or deform the seat rails Hold the seat only as necessary.

1. CHECK DTC 
   1. Turn the engine switch on (IG)
   2. Clear the DTCs stored in the occupant classification ECU (See DTC CHECK / CLEAR  ).
   3. Clear the DTCs stored in the center airbag sensor assembly (See DTC CHECK / CLEAR  )
   4. Turn the engine switch off
   5. Turn the engine switch on (IG), and wait for at least 10 seconds
   6. Check for DTCs (See DTC CHECK / CLEAR  )

      OK: DTC B1795 is not output. 

      HINT

      Codes other than B1795 may be output at this time, but they are not related to this check

   NG: Go to step 2 

   OK: USE SIMULATION METHOD TO CHECK  (See DIAGNOSIS SYSTEM  )

2. REPLACE OCCUPANT CLASSIFICATION ECU 
   1. Connect the Techstream to the DLC3
   2. Turn the engine switch on (IG)
   3. Using the Techstream, save the ECU data from the ECU which has been installed on the vehicle (See REGISTRATION  )
   4. Turn the engine switch off
   5. Disconnect the cable from the negative (-) battery terminal.
   6. Replace the occupant classification ECU (See REMOVAL  ).
   7. Connect the cable to the negative (-) battery terminal.
   8. Turn the engine switch on (IG).
   9. Using the Techstream, load the previous ECU data stored into the new ECU (See REGISTRATION  )
   10. Turn the engine switch off.
   11. Turn the engine switch on (IG).
   12. Clear the DTCs stored in the memory (See DTC CHECK / CLEAR  )

       HINT:

       If the DTCs are not cleared at this time, past DTC will remain.

3. PERFORM SENSITIVITY CHECK 
   1. Perform the sensitivity check (See INITIALIZATION  ).

   NEXT: END