Trouble in Passenger Airbag ON/OFF Indicator [12/2019 - 11/2023]: Procedure

1. Turn the ignition switch to ON, and check the SRS warning light condition.

   OK

   After the primary check period, the SRS warning light turns off.

   HINT: 

   The primary check is performed for approximately 6 seconds after the ignition switch is turned to ON.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

GO TO AIRBAG SYSTEM. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - 11/2023] 

Result: 

OK 

See step  2

1. Using the GTS, perform Zero Point Calibration.

   Refer to INITIALIZATION [12/2019 - 10/2021] , or refer to INITIALIZATION [10/2021 - 11/2023]

   OK

   "Zero Point Calibration is complete." is displayed.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  3

1. Loosen the 4 installation bolts of the front seat assembly RH.
2. Tighten the 4 installation bolts of the front seat assembly RH to the specified torque.

   for Manual Seat: Refer to INSTALLATION [12/2019 - 10/2022] , or refer to INSTALLATION [10/2022 - 11/2023]

   for Power Seat: Refer to INSTALLATION [12/2019 - 10/2022] , or refer to INSTALLATION [10/2022 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  4

1. Using the GTS, perform Zero Point Calibration.

   Refer to INITIALIZATION [12/2019 - 10/2021] , or refer to INITIALIZATION [10/2021 - 11/2023]

   OK

   "Zero Point Calibration is complete." is displayed.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END 

Result: 

NG 

See step  5

1. Read the Data List according to the display on the GTS.

   Body Electrical > Occupant Detection > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Passenger Buckle SW	Front passenger side buckle switch	NG, Set or Unset	Set: Front passenger seat belt is fastened Unset: Front passenger seat belt is not fastened	"NG" will be displayed immediately after the ignition switch is turned to ON.

   Body Electrical > Occupant Detection > Data List 

   Tester Display
   Passenger Buckle SW

   OK

   The GTS display changes correctly in accordance with the operation of the front passenger side buckle switch.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

See step  9

Result: 

OK 

See step  6

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) auxiliary battery terminal.
3. Disconnect the connectors from the occupant detection ECU, front occupant classification sensor LH and rear occupant classification sensor LH.
4. Check that the terminals of the connectors are not deformed or damaged.

   OK

   The terminals are not deformed or damaged.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE FRONT SEAT WIRE RH 

Result: 

OK 

See step  7

1. Connect the connectors to the front occupant classification sensor LH and rear occupant classification sensor LH.
2. Replace the occupant detection ECU with a new one.

   Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

3. Connect the cable to the negative (-) auxiliary battery terminal.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  8

1. Using the GTS, perform Zero Point Calibration.

   Refer to INITIALIZATION [12/2019 - 10/2021] , or refer to INITIALIZATION [10/2021 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END 

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) auxiliary battery terminal.
3. Disconnect the connectors from the occupant detection ECU and front seat inner belt assembly RH.
4. Check that the terminals of the connectors are not deformed or damaged.

   OK

   The terminals are not deformed or damaged.

   Result

   Proceed to
   OK
   NG

Result: 

NG 

REPLACE FRONT SEAT WIRE RH 

Result: 

OK 

See step  10

1. Turn the ignition switch off.
2. Disconnect the cable from the negative (-) auxiliary battery terminal.
3. Replace the front seat inner belt assembly RH with a new one.

   for Manual Seat: Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

   for Power Seat: Refer to REMOVAL [12/2019 - 10/2022] , or refer to REMOVAL [10/2022 - 11/2023]

4. Connect the cable to the negative (-) auxiliary battery terminal.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  11

1. Using the GTS, perform Zero Point Calibration.

   Refer to INITIALIZATION [12/2019 - 10/2021] , or refer to INITIALIZATION [10/2021 - 11/2023]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END