2008 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

Problem Symptoms Table

HINT:

  • Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to the system before inspecting the suspected areas below.
    Fig 1: Checking Seat Sliding Operation
    G04952418Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Front Power Seat Control System 

FRONT POWER SEAT CONTROL SYSTEM - PROBLEM SYMPTOMS CHART

Symptom Suspected Area Refer To
Front Power Seat does not Operate with Front Power Seat Switch Front power seat switch FRONT POWER SEAT DOES NOT OPERATE WITH FRONT POWER SEAT SWITCH 
Harness or connector FRONT POWER SEAT DOES NOT OPERATE WITH FRONT POWER SEAT SWITCH 
Power Seat Position is not Memorized Front power seat switch LH POWER SEAT POSITION IS NOT MEMORIZED 
Seat memory switch POWER SEAT POSITION IS NOT MEMORIZED 
Front door ECU LH POWER SEAT POSITION IS NOT MEMORIZED 
Harness or connector POWER SEAT POSITION IS NOT MEMORIZED 
Power Seat does not Return to Memorized Position Front power seat switch LH POWER SEAT DOES NOT RETURN TO MEMORIZED POSITION 
Front Passenger Seat Full Front and Return Operation does not Function with Power Seat Switch Rear power seat module switch FRONT PASSENGER SEAT FULL FRONT AND RETURN OPERATION DOES NOT FUNCTION WITH POWER SEAT SWITCH 
Front power seat switch FRONT PASSENGER SEAT FULL FRONT AND RETURN OPERATION DOES NOT FUNCTION WITH POWER SEAT SWITCH 
Power seat switch assembly FRONT PASSENGER SEAT FULL FRONT AND RETURN OPERATION DOES NOT FUNCTION WITH POWER SEAT SWITCH 
Harness or connector FRONT PASSENGER SEAT FULL FRONT AND RETURN OPERATION DOES NOT FUNCTION WITH POWER SEAT SWITCH 
Front Passenger Seat Ottoman Linked Operation does not Function with Rear Power Seat Switch Rear power seat module switch FRONT PASSENGER SEAT OTTOMAN LINKED OPERATION DOES NOT FUNCTION WITH REAR POWER SEAT SWITCH 
Front power seat switch RH FRONT PASSENGER SEAT OTTOMAN LINKED OPERATION DOES NOT FUNCTION WITH REAR POWER SEAT SWITCH 
Wireless Transmitter Memory Function does not Operate Front power seat switch LH WIRELESS TRANSMITTER MEMORY FUNCTION DOES NOT OPERATE 
Wireless-linked Return Function does not Operate Front power seat switch LH WIRELESS-LINKED RETURN FUNCTION DOES NOT OPERATE 
Buzzer Sounds During Manual Operation Initialization CUSTOMIZE PARAMETERS 
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.