Section 218 (Rear Power Seat Control System - Diagnosis): Inspection

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT POWER SEAT MOTOR
1. Check operation of the reclining motor.
1. Check if the motor rotates smoothly when the battery is connected to the reclining motor connector terminals.
OK: Go to next step.

Fig 1: Measurement Condition Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Inspecting Power Seat Motor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the reclining motor.
INSPECT POWER SEAT MOTOR
1. Check operation of the headrest motor.
1. Check if the motor rotates smoothly when the battery is connected to the headrest motor connector terminals.
OK: Go to next step.

Fig 3: Measurement Condition Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 4: Inspecting Power Seat Motor
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

If the result is not as specified, replace the headrest motor.
INSPECT REAR SEAT MEMORY SWITCH LH
1. Measure the resistance between the terminals when the switch is operated.
  Standard:
  
  Fig 5: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 6: Inspecting Rear Seat Memory Switch LH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the switch.
INSPECT REAR SEAT MEMORY SWITCH RH
1. Measure the resistance between the terminals when the switch is operated.
  Standard:
  
  Fig 7: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 8: Inspecting Rear Seat Memory Switch RH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the switch.
INSPECT VIBRATOR LH
1. Measure the resistance between the terminals.
  Standard:
  
  Fig 9: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 10: Inspecting Vibrator LH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the vibrator.
INSPECT VIBRATOR RH
1. Measure the resistance between the terminals.
  Standard:
  
  Fig 11: Terminals Resistance Reference Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 12: Inspecting Vibrator RH
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
If the result is not as specified, replace the vibrator.