Ecu Data Save/Write [12/2022 - ]: Procedure

In the following situations, perform "Front Side Radar Beam Axis Confirmation" or "Check Reflection Power" after replacing the front side radar sensor with a new one as the values of the beam axis alignment cannot be stored by the GTS.

• When a minor collision is suspected.
• When body repairs have been performed on the vehicle.
• For a vehicle in which the system frequently operates inappropriately or fails to operate.
• When a DTC for front side radar sensor (module "A") beam axis misalignment (horizontal) or front side radar sensor (module "B") beam axis misalignment (horizontal) has been stored.
• When vehicle control history (RoB) code for front side radar sensor (module "A") blockage or front side radar sensor (module "B") blockage has been stored.
• When vehicle control history (RoB) code for front side radar sensor (module "A") blockage Level 2 or front side radar sensor (module "B") blockage Level 2 has been stored.
• If body repair has been performed at a radio wave transmission area of the front bumper cover, make sure to perform "Check Reflection Power".

  Refer to CHECK REFLECTION POWER [12/2022 - ] 

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *a	Bumper Rear Side	*b	Scribed Line
  	Radio Wave Transmission Area	-	-

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  *a	282 mm (11.10 in.)	*b	48 mm (1.89 in.)
  *c	122 mm (4.80 in.)	*d	224 mm (8.82 in.)
  *e	79 mm (3.11 in.)	*f	291 mm (11.46 in.)
  *g	122 mm (4.80 in.)	*h	156 mm (6.14 in.)
  *j	146 mm (5.75 in.)	*k	206 mm (8.11 in.)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002	Radio Wave Transmission Area	-	-

• Before replacing the front side radar sensor LH, read the values and then write them to the new front side radar sensor LH.
• Before replacing the front side radar sensor RH, read the values and then write them to the new front side radar sensor RH.