Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR DTC
1. Turn the ignition switch ON.
2. Clear the DTCs (see 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 OFF, and wait for at least 2 seconds.
4. Turn the ignition switch ON.
5. Check the DTCs (see DTC CHECK / CLEAR ).
  OK:
  
  DTC B1796 is not output.
  
  HINT:
  
  DTCs 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
REPLACE OCCUPANT CLASSIFICATION ECU
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 (see REMOVAL ).
PERFORM ZERO POINT CALIBRATION
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 ON.
4. Using the Techstream, perform the zero point calibration (see INITIALIZATION ).
  OK:
  
  "Zero Point Calibration is complete." is displayed.
PERFORM SENSITIVITY CHECK
1. Using the Techstream, perform the sensitivity check (see INITIALIZATION ).
  Standard value:
  
  27 to 33 kg (59.52 to 72.75 lb)
NEXT: END