Inspection Procedure

Check Passenger Seat Belt Warning Light
1. Check passenger seat belt warning operation.
  1. Remove the body ECU with connectors still connected.
  2. Using SST, connect the terminal PBKL and body ground.
  3. Check that the passenger seat belt warning light flashes.
  Fig 1: Identifying PBKL Terminal
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Go To Next Step , (Inspect Front Seat Inner Belt Assy RH).
2. NG: Check And Replace Combination Meter Assy
Inspect Front Seat Inner Belt Assy RH
1. Check continuity.
  1. Disconnect the connector from seat belt inner belt RH.
  2. Check continuity between terminals 1 and 4 when buckle switch condition, as shown in the chart.
  OK:
  
  Fig 3: Reviewing Front Seat Inner Belt Information
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Go To Next Step , (Inspect Separate Seat Type Front Seat Cushion Pad (Occupant Detection Sensor).
2. NG: Replace Front Seat Inner Belt Assy RH
Inspect Separate Seat Type Front Seat Cushion Pad (Occupant Detection Sensor)
1. Disconnect the separate type front seat cushion pad.
2. Check continuity separate type front seat cushion pad.
  
  Fig 5: Reviewing Seat Condition Information
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Go To Next Step , (Check Harness And Connector (Between Body ECU And Buckle Switch RH).
2. NG: Replace Separate Seat Type Front Seat Cushion Pad
Check Harness And Connector (Between Body ECU And Buckle Switch RH)
1. OK: Repair Or Replace Harness Or Connector
2. NG: Check And Replace Multiplex Network Body ECU
Check That Malfunction Disappear A Known Good Combination Meter Is Installed
1. Check that malfunction disappear when a known good combination meter is installed.
  
  Fig 6: Reviewing Malfunction Information
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. A : Check And Replace Multiplex Network Body ECU
2. B : Check And Replace Air Conditioner Amplifier Assy