Trouble in Passenger Airbag ON/OFF Indicator [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 goes 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 [11/2023 - ] 

Result: 

OK 

See step  2

1. Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".

   Refer to INITIALIZATION [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  3

1. Check the passenger airbag ON/OFF indicator.

   Refer to OPERATION CHECK [11/2023 - ]

   OK

   Passenger airbag ON/OFF indicator operation normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (NORMAL AFTER PERFORMING ZERO POINT CALIBRATION) 

Result: 

NG 

See step  4

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 [11/2023 - ]

   for Power Seat: Refer to INSTALLATION [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  5

1. Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".

   Refer to INITIALIZATION [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  6

1. Check the passenger airbag ON/OFF indicator.

   Refer to OPERATION CHECK [11/2023 - ]

   OK

   Passenger airbag ON/OFF indicator operation normally.

   Result

   Proceed to
   OK
   NG

Result: 

OK 

END (THE 4 INSTALLATION BOLTS WAS LOOSEN) 

Result: 

NG 

See step  7

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

   Body Electrical > SRS Airbag > Data List 

   Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
   Judgment Result for Occupant Detection System (Buckle Switch of Passenger Seat)	Front passenger side buckle switch	Unknown, Buckle, Unbuckle or Malfunction	Buckle: Front passenger seat belt is fastened Unbuckle: Front passenger seat belt is not fastened Malfunction: Front passenger seat belt is malfunctioning	-

   Body Electrical > SRS Airbag > Data List 

   Tester Display
   Judgment Result for Occupant Detection System (Buckle Switch of Passenger Seat)

   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  11

Result: 

OK 

See step  8

1. Turn the ignition switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Separate Type Front Seat Cushion Spring Assembly RH
   *2	Airbag Sensor Assembly
   *3	Wire Harness

2. Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
3. Disconnect the airbag sensor assembly connector.
4. Disconnect the separate type front seat cushion spring assembly RH connector.
5. 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 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  9

1. Connect the separate type front seat cushion spring assembly RH connector.
2. Replace the airbag sensor assembly with a new one.

   Refer to REMOVAL [11/2023 - ]

3. Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  10

1. Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".

   Refer to INITIALIZATION [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END (AIRBAG SENSOR ASSEMBLY WAS DEFECTIVE) 

1. Turn the ignition switch off.

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   *1	Front Seat Inner Belt Assembly RH
   *2	Airbag Sensor Assembly
   *3	Wire Harness

2. Disconnect the cable from the negative (-) auxiliary battery terminal, and wait for at least 60 seconds.
3. Disconnect the airbag sensor assembly connector.
4. Disconnect the front seat inner belt assembly RH connector.
5. 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 

REPAIR OR REPLACE HARNESS OR CONNECTOR 

Result: 

OK 

See step  12

1. Connect the airbag sensor assembly connector.
2. Replace the front seat inner belt assembly RH with a new one.

   for Manual Seat: Refer to REMOVAL [11/2023 - ]

   for Power Seat: Refer to REMOVAL [11/2023 - ]

3. Connect the cable to the negative (-) auxiliary battery terminal, and wait for at least 2 seconds.

   Result

   Proceed to
   NEXT

Result: 

NEXT 

See step  13

1. Using the GTS, perform "Occupant Detection Sensor Zero Point Calibration".

   Refer to INITIALIZATION [11/2023 - ]

   Result

   Proceed to
   NEXT

Result: 

NEXT 

END (FRONT SEAT INNER BELT ASSEMBLY RH WAS DEFECTIVE)