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Home >> Lexus >> 2013 >> IS 250C Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Seats >> Front Power Seat Control System (W/ Memory) (Diagnostics & Symptom Tests) >> FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) >> Symptom Tests >> Power Seat Power Easy Access System Function does not Operate >> Description

Power Seat Power Easy Access System Function does not Operate: Description

Fold function:

When the fold & return switch is operated with the engine switch on (IG), the vehicle unloaded, the seat belts unfastened and the shift lever in P, the position control ECU and switch assembly detects the operation of the fold & return switch and memorizes the current seat position. It then operates each motor to slide the seat to a target position 55 mm rearward from the foremost position, recline the seat to the foremost position, and move the seat to the lowest position.

Return function:

When the return switch of the fold & return switch is pressed after the fold operation is completed, the position control ECU and switch assembly detects the operation of the fold & return switch and operates each motor to recline the seat 29° back from the foremost position and slide the seat to a target position 120 mm rearward from the foremost position. The seat will remain at the lowest position at this time. If the return switch is held down after the return operation is completed, the position control ECU and switch assembly operates each motor to return to the seat to the same position it was in before the fold operation was started (Auto operation).

The buzzer sounds for 0.1 seconds and the seat slides reward only while the fold & return switch is being pressed (Manual return operation)*.

HINT: 

If the position control ECU and switch assembly is operated after the fold operation is completed, the position memory when the fold operation was started will be cleared.