Lexus ES: 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 > IPA/ICS/Clearance Sonar > Clear DTCs(b) Check for DTCs.
Body Electrical > IPA/ICS/Clearance Sonar > Trouble Codes| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC is output | B |
| B | .gif) | GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
| 2. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / IPA/ICS/Clearance Sonar / Data List.
(e) 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 |
| 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 |
|
| 3. | CLEAN ULTRASONIC SENSORS |
(a) Clean the ultrasonic sensor from dirty or frozen.
|
| 4. | CLEAR THE DTC |
(a) Clear the DTCs.
Body Electrical > IPA/ICS/Clearance Sonar > Clear DTCs
|
| 5. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG) and wait 30 seconds.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / IPA/ICS/Clearance Sonar / Data List.
(e) 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 |
| 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 | | REPLACE ULTRASONIC SENSOR |
READ NEXT:
System Description
SYSTEM DESCRIPTION GENERAL (a) The parking support alert system has a static objects function, rear crossing vehicles function, and rear pedestrians.
Parking Support Alert (static objects) function
System Diagram
SYSTEM DIAGRAM for 12.3 inch display w/o Panoramic View Monitor System w/ Blind Spot Monitor System w/ Panoramic View Monitor System
Terminals Of Ecu
TERMINALS OF ECU CLEARANCE WARNING ECU ASSEMBLY (a) Disconnect the N41 clearance warning ECU assembly connector. (b) Measure the voltage and resistance on the wire harness side connector according to
SEE MORE:
Slip Indicator Light Remains ON
DESCRIPTION The skid control ECU (brake booster with master cylinder assembly) is connected to the combination meter assembly via CAN communication. If the skid control ECU (brake booster with master cylinder assembly) stores a DTC, the slip indicator light comes on in the combination meter assembly
Rear Power Window RH Auto Up / Down Function does not Operate with Rear Power Window Switch RH
DESCRIPTION If the manual up and down functions operate normally but the auto up and down functions do not, the power window control system may be in fail-safe mode. If power window initialization has not been performed, the auto up and down functions will not operate. Click here WIRING DIAGRAM C
