FRONT POWER SEAT CONTROL SYSTEM (w/ Seat Position Memory System) > PROBLEM SYMPTOMS TABLE

for Preparation Click here

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.

Front power seat control system (w/ seat position memory system)
Symptom	Suspected area	See page
Front power seat does not operate with front power switch	Fuse (FR P/SEAT LH, FR P/SEAT RH, ECU-IG RH, DC CUT, MPX-B)	Click here
	Wire harness and connector	Click here
	Position control ECU & switch assembly LH, RH	Click here
One or more power seat motors do not operate	Position control ECU & switch assembly LH, RH	Click here
	Front seat frame adjuster assembly LH, RH (slide motor, front vertical motor, lifter motor, reclining motor)	Click here
	Lumbar front power seat switch LH, RH	Click here
	Lumbar support adjuster assembly	Click here
	Wire harness and connector	Click here
Power seat position is not memorized	Position control ECU & switch assembly LH, RH	Click here
	Multiplex network master switch assembly	Click here
	Seat memory switch LH, RH	Click here
	Front multiplex network door ECU (driver side)	Click here
	Wire harness and connector	Click here
	Front multiplex network door ECU (passenger side)	Click here
Power seat does not return to memorized position	Position control ECU & switch assembly LH, RH	Click here
Power seat does not return to memorized position	Front seat frame adjuster assembly LH, RH	Click here
Wireless transmitter memory function does not operate	Certification ECU	Click here
	Seat memory switch (driver side)	Click here
	Multiplex network master switch assembly	Click here
	Position control ECU & switch assembly (driver side)	Click here
	Multiplex network body ECU	Click here
Wireless-linked return function does not operate	Certification ECU	Click here
	Multiplex network master switch assembly	Click here
	Power source control ECU	Click here
	Front seat frame adjuster assembly LH, RH	Click here
	Seat memory switch (driver side)	Click here
	Multiplex network master switch assembly	Click here