Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Sensor Frozen Indication (Dirty or Frozen)

DESCRIPTION

When the ultrasonic sensor is dirty or frozen, "Parking Assist Unavailable Clean Parking Assist Sensor" is displayed on the multi-information display in the combination meter assembly.

PROCEDURE

1.

CHECK FOR DTC

(a) Clear the DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs

(b) Check for DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTC is output

B

B

GO TO DIAGNOSTIC TROUBLE CODE CHART

A

2.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Advanced Parking Guidance / ICS / Intuitive P/A / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > 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 > Advanced Parking Guidance/ICS/Intuitive P/A > 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

Proceed to

Sensor frozen history displays "Not Rec"

A

Sensor frozen history displays "Recorded"

B

B

GO TO STEP 4

A

3.

CLEAN ULTRASONIC SENSORS

(a) Clean the ultrasonic sensor from dirty or frozen.

NEXT

4.

CLEAR THE DTC

(a) Clear the DTCs.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > Clear DTCs
NEXT

5.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG) and wait 30 seconds.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Advanced Parking Guidance / ICS / Intuitive P/A / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Advanced Parking Guidance/ICS/Intuitive P/A > 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 > Advanced Parking Guidance/ICS/Intuitive P/A > 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

Proceed to

Sensor frozen history displays "Not Rec"

A

Sensor frozen history displays "Recorded"

B

A

END

B

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