Sensor Frozen Indication (Dirty or Frozen) [06/2018 - 09/2022]: Procedure

WARNING: This page is about a different car, the 2022 Lexus ES 300h, 2021 Lexus ES 300h, 2020 Lexus ES 300h, and 2019 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR DTC

Clear the DTCs.
Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs

Check for DTCs.

Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes

Result

Result	Proceed to
DTCs are not output	A
DTC is output	B

Result:

GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2018 - 09/2022]

Result:

See step 2

READ VALUE USING TECHSTREAM

Connect the Techstream to the DLC3.
Turn the power switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / IPA/ICS/Clearance Sonar / Data List.

Read the Data List according to the display on the Techstream.

Body Electrical > IPA/ICS/Clearance Sonar > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Rr Right Freezed History	Rear right sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Rr Right Center Freezed History	Rear right center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Rr Left Center Freezed History	Rear left center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Rr Left Freezed History	Rear left sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Right Freezed History	Front right sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Right Center Freezed History	Front right center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Left Center Freezed History	Front left center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Left Freezed History	Front left sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared

Body Electrical > IPA/ICS/Clearance Sonar > Data List

Tester Display
Rr Right Freezed History
Rr Right Center Freezed History
Rr Left Center Freezed History
Rr Left Freezed History
Fr Right Freezed History
Fr Right Center Freezed History
Fr Left Center Freezed History
Fr Left Freezed History

Result

Result	Proceed to
Sensor frozen history displays "Not Rec"	A
Sensor frozen history displays "Recorded"	B

Result:

See step 4

Result:

See step 3

CLEAN ULTRASONIC SENSORS

Clean the ultrasonic sensor from dirty or frozen.

Result

Proceed to
NEXT

Result:

See step 4

CLEAR THE DTC

Clear the DTCs.

Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs

Result

Proceed to
NEXT

Result:

See step 5

READ VALUE USING TECHSTREAM

Connect the Techstream to the DLC3.
Turn the power switch on (IG) and wait 30 seconds.
Turn the Techstream on.
Enter the following menus: Body Electrical / IPA/ICS/Clearance Sonar / Data List.

Read the Data List according to the display on the Techstream.

Body Electrical > IPA/ICS/Clearance Sonar > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Rr Right Freezed History	Rear right sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Rr Right Center Freezed History	Rear right center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Rr Left Center Freezed History	Rear left center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Rr Left Freezed History	Rear left sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Right Freezed History	Front right sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Right Center Freezed History	Front right center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Left Center Freezed History	Front left center sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared
Fr Left Freezed History	Front left sensor frozen history	Not Rec or Recorded	Not Rec: No record history Recorded: Record history	If the DTCs are cleared, history record will be cleared

Body Electrical > IPA/ICS/Clearance Sonar > Data List

Tester Display
Rr Right Freezed History
Rr Right Center Freezed History
Rr Left Center Freezed History
Rr Left Freezed History
Fr Right Freezed History
Fr Right Center Freezed History
Fr Left Center Freezed History
Fr Left Freezed History

Result

Result	Proceed to
Sensor frozen history displays "Not Rec"	A
Sensor frozen history displays "Recorded"	B

Result:

END

Result:

REPLACE ULTRASONIC SENSOR

for Front

Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022]

for Rear

Refer to REMOVAL [06/2018 - 08/2021] , or refer to REMOVAL [08/2021 - 09/2022]