Trouble in Passenger Airbag ON/OFF Indicator: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Using the Techstream, perform the zero point calibration. Refer to INITIALIZATION .
4. Turn the ignition switch off.
5. Turn the ignition switch to ON.
6. Clear the DTCs stored in the occupant classification ECU. Refer to DTC CHECK / CLEAR .

   HINT: 

   If the DTCs are not cleared at this time, past DTCs will remain.

NEXT: Go to next step 

1. Turn the ignition switch to ON.
2. Clear the DTCs stored in the occupant classification ECU. Refer to DTC CHECK / CLEAR .
3. Clear the DTCs stored in the center airbag sensor assembly. Refer to DTC CHECK / CLEAR .
4. Turn the ignition switch off.
5. Turn the ignition switch to ON.
6. Check for DTCs of the occupant classification ECU. Refer to DTC CHECK / CLEAR .

   OK

   DTC B1797 is not output.

   HINT: 

   Codes other than DTC B1797 may be output at this time, but they are not related to this check.

NG → See step   10 

OK: Go to next step 

1. Perform the sensitivity check. Refer to INITIALIZATION .

NG → See step   4 

OK → END 

1. Turn the ignition switch to ON.
2. Using the Techstream, read the Data List. Refer to DATA LIST / ACTIVE TEST .
   1. Read the display when the passenger side buckle switch is operated.

      Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
      Passenger Buckle SW	Buckle switch (Passenger side)/ Unset: The seat belt is not fastened Set: The seat belt is fastened NG: Data is not determined	Unset/Set	-

      OK

      The Techstream display changes correctly in accordance with the operation of the buckle switch.

NG → See step   11 

OK: Go to next step 

1. Fasten the passenger side seat belt.
2. Turn the ignition switch to ON.
3. Using the Techstream, read the value of the Data List. Refer to DATA LIST / ACTIVE TEST .

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Filtered Pressure Sensor Output	Filtered belt tension output/ Min.: 0 Max.: 255	39 to 64 (no load)	-

   OK

   When there is no tension on the belt, 39 to 64 is displayed on the Techstream.

NG → See step   12 

OK: Go to next step 

1. Disconnect the connectors from the occupant classification ECU and the occupant classification sensor.
2. Check that the terminals of the connectors are not damaged.

   OK

   The terminals are not deformed or damaged.

NG → REPLACE FRONT SEAT WIRE RH 

OK: Go to next step 

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) battery terminal.
3. Replace the front seat cushion assembly (with occupant classification ECU and occupant classification sensor). Refer to REMOVAL .
4. Connect the cable to the negative (-) battery terminal.
5. Turn the ignition switch to ON.
6. Clear the DTCs stored in the occupant classification ECU. Refer to DTC CHECK / CLEAR .
7. Clear the DTCs stored in the center airbag sensor assembly. Refer to DTC CHECK / CLEAR .
8. Turn the ignition switch off.
9. Turn the ignition switch to ON.
10. Check for DTCs. Refer to DTC CHECK / CLEAR .

    OK

    DTC is not output.

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Using the Techstream, perform the zero point calibration. Refer to INITIALIZATION .
4. Turn the ignition switch off.
5. Turn the ignition switch to ON.
6. Clear the DTCs stored in the occupant classification ECU. Refer to DTC CHECK / CLEAR .

   HINT: 

   If the DTCs are not cleared at this time, past DTCs will remain.

NEXT: Go to next step 

1. Perform the sensitivity check. Refer to INITIALIZATION .

NEXT → END