HINT:

• Buzzer pattern (See page ).
• Auto access seat position information is stored in EEPROM (Electronically Erasable Programmable Read Only Memory). Position information is initialized in service operation mode.
• Service operation mode allows diagnostic codes stored in the RAM of the position control ECU assembly to be output/cleared, and enables initialization of the auto access seat position information stored in EEPROM.

  Memory	Operation
  RAM	Output diagnostic codes
  RAM	Clear diagnostic codes
  EEPROM	Initialize auto access seat position information

HINT:

• After entering service operation mode, regardless of the switch positions, service operation mode will run until completed.
• If only 1 code is entered, or if the code cannot be determined, diagnostic codes stored in RAM will be output.
• If unstable power source voltage is detected, the system will not enter service operation mode.

HINT:

• If there is no diagnostic code (trouble code), the normal code (10 pulses) is output once.
• All diagnostic codes (trouble codes) are output as a set, which is repeated 3 times.
• Diagnostic codes are output in order starting with the lowest number, with a 2.0 second pause (buzzer off) between codes.
• If diagnostic codes are stored, there is a 4.0 second pause (buzzer off) between sets.

HINT:

• Buzzer pattern (See page ).
• If the auto access seat position information stored in the EEPROM has been lost, independent operation mode enables calibration of all origin point information for the auto access seat and enables this information to be stored in the EEPROM.
• If any of the conditions below are met, the system will enter independent operation mode.

  Condition
  Auto access seat position information is initialized in service operation mode
  Auto access seat position information is discarded as a result of fail-safe operation
  Position information for at least one motor is missing (the position of the auto access seat cannot be confirmed)

HINT:

• *1: Only when swivel motor origin point position calibration is incomplete, egress operation to move back to the position from the start of independent operation mode is possible.
• *2: Operation is only possible when front-rear slide motor origin point position calibration is incomplete.
• *3: When either the upper end limit switch or the outward slide origin point limit switch is OFF, the following operations are performed in order of priority.

  Priority	Outward Slide Origin Point Limit Switch	Upper End Limit Switch	Up-down Motor Position	Operation
  				Outward Slide	Up-down
  1	OFF	OFF	Not determined	Stop	Up
  2	OFF	ON	0 edges or more	Stop	Down
  3	OFF	OFF	Below 172 edges	Stop	Down
  4	OFF	OFF	172 edges or more	Ingress	Stop
  5	ON	OFF	172 edges or more	Stop	Up
  6	ON	ON	0 edges	Stop	Stop

• *4: When front-rear slide motor origin point position calibration is not complete, perform operation from Mode 4.

  Mode	Operation Direction	Completion Conditions		Next Mode	Diagnostic Note
  		Excessive Load (front limit or rear limit detected)	Front-rear Slide Origin Point Limit Switch
  0	Stop	X	-	-	When origin point position information calibration is complete
  1	Stop	X	-	4	-
  2	Front	X	ON → OFF	1	Limit switch ON at first transition
  		Front limit	-
  3	Stop	X	-	2	-
  4	Rear	X	OFF → ON	0	At initialization
  		Rear limit	-	3

HINT:

• Buzzer pattern (See page ).
• After any origin point position calibration, operation of all motors other than the reclining motor and up-down motor is stopped until independent operation mode ends.
• After calibration of any origin point for the auto access seat, if there is a motor for which calibration is incomplete, the stop on that motor is released and calibration of the incomplete origin point can be performed again by operating the switch.