Seat Belt Tension Reducer System: Inspection

INSPECT FRONT SEAT INNER BELT ASSY LH

Measure the resistance between the terminals of the buckle switch.

Standard:

TESTER CONDITION AND RESISTANCE SPECIFICATIONS

Tester Condition	Condition	Specified Condition
5 - 6	Fasten seat belt	Below 1 Ω
5 - 6	Release seat belt	1 MΩ or higher

If the result is not as specified, replace the inner belt assy.

Fig 1: Identifying Buckle Switch Connector Terminals (LH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT FRONT SEAT INNER BELT ASSY RH

Measure the resistance between the terminals of the buckle switch.

Standard:

TESTER CONDITION AND RESISTANCE SPECIFICATIONS

Tester Condition	Condition	Specified Condition
2 - 5	Fasten seat belt	320 - 340 Ω
2 - 5	Release seat belt	1,300 - 1,360 Ω

If the result is not as specified, replace the inner belt assy.

Fig 2: Identifying Buckle Switch Connector Terminals (RH)

INSPECT FRONT SEAT OUTER BELT ASSY LH
NOTE: Do not apply battery voltage to the pretensioner connector.
1. Check tension reducer operation.
  1. Connect the battery's positive lead to terminal 1 of connector A and the negative lead to terminal 2.
  2. Check that an operating noise is heard when the magnetized solenoid is attracting the plunger.
  3. Pull out the seat belt and let it rewind. Listen to the operating sound. Pull out the seat belt again and disconnect the battery's negative lead. Listen to the operating sound again and check that the operating sound volume has increased.
If the result is not as specified, replace the outer belt assy.

Fig 3: Inspecting Front Seat Outer Belt Assembly LH
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSPECT FRONT SEAT OUTER BELT ASSY RH
NOTE: Do not apply battery voltage to the pretensioner connector.
1. Check tension reducer operation.
  1. Connect the battery's positive lead to terminal 1 of connector A and the negative lead to terminal 2.
  2. Check that an operating noise is heard when the magnetized solenoid is attracting the plunger.
  3. Pull out the seat belt and let it rewind. Listen to the operating sound. Pull out the seat belt again and disconnect the battery's negative lead. Listen to the operating sound again and check that the operating sound volume has increased.
If the result is not as specified, replace the outer belt assy.

Fig 4: Inspecting Front Seat Outer Belt Assembly RH
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002