DTC B1796: Sleep Operation Failure of Occupant Classification ECU: Procedure

1. Turn the ignition switch to the ON position.
2. Clear the DTCs stored in memory. Refer to DTC CHECK / CLEAR .

   HINT: 

   First clear DTCs stored in the occupant classification ECU and then in the center airbag sensor assembly.

3. Turn the ignition switch to the LOCK position, and wait for at least 10 seconds.
4. Turn the ignition switch to the ON position.
5. Check the DTCs. Refer to DTC CHECK / CLEAR .

   OK

   DTC B1796 is not output.

   HINT: 

   Codes other than DTC B1796 may be output at this time, but they are not related to this check.

OK → USE SIMULATION METHOD TO CHECK 

NG: Go to next step 

1. Turn the ignition switch to the LOCK position.
2. Disconnect the negative (-) terminal cable from the battery.
3. Replace the occupant classification ECU. Refer to REMOVAL .

   HINT: 

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

NEXT: Go to next step 

1. Connect the negative (-) terminal cable to the battery.
2. Connect the Techstream to the DLC3.
3. Turn the ignition switch to the ON position.
4. Using the Techstream, perform "Zero point calibration". Refer to INITIALIZATION .

   OK

   "Zero Point Calibration is complete." is displayed.

NEXT: Go to next step 

1. Using the Techstream, perform "Sensitivity check". Refer to INITIALIZATION .

   Standard values

   27 to 33 kg (59.52 to 72.75 lb)

NEXT → END