Inspection Procedure

1. Connect the intelligent tester to the DLC3.
2. Turn the power switch ON (IG).
3. Using the intelligent tester, perform the zero point calibration (see INITIALIZATION  ).

   OK : COMPLETED is displayed. 

NG : Go to step   4 

OK : GO TO NEXT STEP 

1. Using the intelligent tester, perform the sensitivity check (see INITIALIZATION  ).

   Standard value: 27 to 33 kg (59.52 to 72.75 lb) 

NG : Go to step   4 

OK : GO TO NEXT STEP 

1. Turn the power switch ON (IG).
2. Clear the DTCs (see DTC B1780 Front Occupant Classification Sensor LH Circuit Malfunction  ).

   HINT:

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

3. Turn the power switch OFF.
4. Turn the power switch ON (IG).
5. Check the DTCs (see DTC B1780 Front Occupant Classification Sensor LH Circuit Malfunction  ).

   OK : DTC B1786 is not output. 

   HINT:

   DTCs other than DTC B1786 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 power switch OFF.
2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
3. Replace the front seat RH (see REMOVAL ).

   HINT:

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

NEXT 

1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
2. Connect the intelligent tester to the DLC3.
3. Turn the power switch ON (IG).
4. Using the intelligent tester, perform the zero point calibration (see INITIALIZATION  ).

   OK : COMPLETED is displayed. 

NG : Go to step   8 

OK : GO TO NEXT STEP 

1. Using the intelligent tester, perform the sensitivity check (see INITIALIZATION  ).

   Standard value: 27 to 33 kg (59.52 to 72.75 lb) 

NG : Go to step   8 

OK : GO TO NEXT STEP 

1. Turn the power switch ON (IG).
2. Clear the DTCs (see DTC B1780 Front Occupant Classification Sensor LH Circuit Malfunction  ).

   HINT:

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

3. Turn the power switch OFF.
4. Turn the power switch ON (IG).
5. Check the DTCs (see DTC B1780 Front Occupant Classification Sensor LH Circuit Malfunction  ).

   OK : DTC B1786 is not output. 

   HINT:

   DTCs other than DTC B1786 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 power switch OFF.
2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
3. Replace the occupant classification ECU.

NEXT 

1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
2. Connect the intelligent tester to the DLC3.
3. Turn the power switch ON (IG).
4. Using the intelligent tester, perform the zero point calibration (see INITIALIZATION  ).

   OK : COMPLETED is displayed. 

NEXT 

1. Using the intelligent tester, perform the sensitivity check (see INITIALIZATION  ).

   Standard value: 27 to 33 kg (59.52 to 72.75 lb) 

NEXT : END