Inspection Procedure
WARNING: This page is about a different car, the 2008 Lexus RX 350. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK DTC
- Turn the ignition switch to the ON position.
- Clear the DTCs stored in the occupant classification ECU (See DTC CHECK / CLEAR ).
- Clear the DTCs stored in the center airbag sensor assembly (See DTC CHECK / CLEAR ).
- Turn the ignition switch to the LOCK position, and wait for at least 10 seconds.
- Turn the ignition switch to the ON position.
- Check the DTCs (See 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
- REPLACE OCCUPANT CLASSIFICATION ECU
- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
- Replace the occupant classification ECU (See REMOVAL ).
- PERFORM ZERO POINT CALIBRATION
- Connect the negative (-) terminal cable to the battery.
- Connect the intelligent tester to the DLC3.
- Turn the ignition switch to the ON position.
- Using the intelligent tester, perform "zero point calibration" (See INITIALIZATION
).
OK:
"COMPLETED" is displayed.
- PERFORM SENSITIVITY CHECK
- Using the intelligent tester, perform "sensitivity check" (See INITIALIZATION
).
Standard values:
27 to 33 kg (59.52 to 72.75 lb)
NEXT: END
- Using the intelligent tester, perform "sensitivity check" (See INITIALIZATION
).