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Home >> Toyota >> 2021 >> 4Runner TRD Pro >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Seats >> Front Power Seat Control System (W/ Memory) - Diagnostics - Introduction >> FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) >> Problem Symptoms Table [08/2015 - 08/2019] >> Problem Symptoms Table [08/2015 - 08/2019]
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Problem Symptoms Table [08/2015 - 08/2019]

HINT: 

FRONT POWER SEAT CONTROL SYSTEM (FOR DRIVER SIDE)

Symptom Suspected Area Refer To
Front power seat does not operate with front power seat switch Proceed to "Front Power Seat does not Operate with Front Power Seat Switch" Refer to Front Power Seat does not Operate with Front Power Seat Switch [08/2015 - ]
Power seat position is not memorized Proceed to "Power Seat Position is not Memorized" Refer to Power Seat Position is not Memorized [08/2015 - 08/2019]
Power seat does not return to memorized position Front power seat switch LH -
Main body ECU (multiplex network body ECU) -
Lumbar support function does not operate Power seat switch assembly Refer to PROCEDURE - Step 1
Separate type front seatback spring assembly LH (Lumbar support motor) Refer to PROCEDURE - Step 2
Harness or connector -
FRONT POWER SEAT CONTROL SYSTEM (FOR PASSENGER SIDE)

Symptom Suspected Area Refer To
All functions do not operate Front power seat switch RH Refer to PROCEDURE - Step 2
Harness or connector -
Only slide function does not operate Front power seat switch RH Refer to PROCEDURE - Step 2
Separate type front seat cushion spring assembly (Slide motor) Refer to PROCEDURE - Step 1
Harness or connector -
Only reclining function does not operate Front power seat switch RH Refer to PROCEDURE - Step 2
Separate type front seatback spring assembly RH (Reclining motor) Refer to PROCEDURE - Step 2
Harness or connector -