Basic Inspection

Check the power supply and ground circuit as shown below.

• Driver seat control unit :Refer to , "DRIVER SEAT CONTROL UNIT : DIAGNOSIS PROCEDURE ".
• Automatic drive positioner control unit: Refer to , "AUTOMATIC DRIVE POSITIONER CONTROL UNIT : DIAGNOSIS PROCEDURE ".

Is the inspection result normally? 

YES: GO TO 2.

NO: Repair or replace the malfunctioning part.

Check the manual function operations by operating the relevant switches as shown below.

• Seat (slide, reclining, lifting front, lifting rear)
• Steering column (tilt, telescopic)
• Door mirror
• Side support

Do all manual functions operate normally? 

YES: GO TO 3.

NO (Seat, steering, door mirror) >> Go to SYMPTOM 1, refer to , "SYMPTOM TABLE ". And, GO TO  4 if the result of SYMPTOM 1 is OK.

NO (Side support) >> Go to SYMPTOM 7, refer to , "SYMPTOM TABLE ".

Register the seat positions (refer to , "MEMORY STORING : DESCRIPTION ") and check that all parts of the seat, steering column, and door mirrors move to their memory positions correctly.

Are the operations normal? 

YES: Check each malfunction according to the instruction of the SYMPTOM 4, refer to , "SYMPTOM TABLE ".

No (memory indicator operates normally) >> Go to SYMPTOM 2, refer to , "SYMPTOM TABLE ".

No (memory indicator does not operate normally either) >> GO TO  5.

Register the seat positions (refer to , "MEMORY STORING : DESCRIPTION ") and check that all parts of the seat, steering column, and door mirrors move to their memory positions correctly.

Are the operations normal? 

YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

NO: GO TO  7.

Check the seat memory switch/memory switch indicator of the SYMPTOM 5, refer to , "SYMPTOM TABLE ".

Is the inspection result normal? 

YES: GO TO 6.

NO: Repair or replace the malfunctioning part.

Check the memory operation conditions (refer to , "SEAT SYNCHRONIZATION FUNCTION : System Description ").

Are all operation conditions fulfilled? 

YES: Go to SYMPTOM 6, refer to , "SYMPTOM TABLE ".

NO: Fulfill the operation conditions. Refer to , "MEMORY FUNCTION : System Description ".

Check for the following.

• Mechanism deformation or pinched foreign materials.
• Interference with other parts because of poor installation.

Is any malfunction present in the relevant parts? 

YES: Go to SYMPTOM 3, refer to , "SYMPTOM TABLE ".

NO: Repair or replace the malfunctioning part.