Electric Tension Reducer System (Driver): Inspection

INSPECT TENSION REDUCER SOLENOID OPERATION
1. Connect the positive (+) lead from the battery to terminal 1, and the negative (-) lead to terminal 2.
  
  Fig 1: Testing Tension Reducer Solenoid Operation
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Pull the belt upward and check that the belt is slowly retracted when released.
3. Disconnect the lead from the battery.
4. Pull the belt upward and check that the belt is retracted more quickly when released than in step b.
NOTE: Do not tilt the retractor.

If the operation is not as specified, replace the front seat outer belt assembly.

CAUTION: Must not charge the connector terminal of the pretensioner. The pretensioner may work resulting in an unexpected injury.
Driver's side:
INSPECT BUCKLE SWITCH CONTINUITY
1. Check that continuity exists between terminals 1 and 3 on the switch side connector with the switch ON (belt fastened).
  
  Fig 2: Testing Seat Belt Buckle Switch Continuity
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Check that no continuity exists between terminals 1 and 2 on the switch side connector with the switch OFF (belt unfastened).
3. Check that no continuity 1 and 2 (belt fastened).
4. Check that continuity 1 and 2 (belt unfastened).
If operation is not as specified, replace the switch.