DTC B1795: Occupant Classification ECU Malfunction [08/2019 - ]: Procedure

1. Turn the ignition switch to ON, and wait for at least 60 seconds.
2. Clear the DTCs stored in memory (Refer to DTC CHECK / CLEAR [08/2019 - ] ).

   HINT: 

   • First clear the DTCs stored in the occupant classification ECU, and then clear the DTCs stored in the 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, and wait for at least 10 seconds.
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 [08/2019 - ] ).

   OK

   DTC B1795 is not output.

   HINT: 

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

Result: 

OK 

USE SIMULATION METHOD TO CHECK 

(Refer to DIAGNOSIS SYSTEM [08/2015 - ] )

Result: 

NG 

See step  2

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 occupant classification ECU (Refer to REMOVAL [08/2015 - ] ).

   HINT: 

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

Result: 

NEXT 

See step  3

1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
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 [08/2015 - ] ).

   OK

   "Zero Point Calibration is complete." is displayed.

Result: 

NEXT 

See step  4

1. Using the Techstream, perform the sensitivity check (Refer to INITIALIZATION [08/2015 - ] ).

   Standard range

   27 to 33 kg (59.5 to 72.8 lb)

Result: 

NEXT 

END