Lexus ES: Freeze Frame Data
FREEZE FRAME DATA
DESCRIPTION
(a) Whenever a road sign assist system DTC is stored, the forward recognition camera stores the current vehicle state (ECU and sensor information) as Freeze Frame Data.
CHECK FREEZE FRAME DATA
(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 / Road Sign Assist / Trouble Codes.
Body Electrical > Road Sign Assist > Trouble Codes(e) According to the Techstream display, select a DTC that stored freeze frame data.
(f) Read the freeze frame data recorded when the DTC was stored.
Body Electrical > Road Sign Assist| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Total Distance Traveled | - | - | - | Cannot be used |
| Total Distance Traveled - Unit | - | - | - | Cannot be used |
| Traffic Sign Estimated Speed Unit | - | - | - | Cannot be used |
| Traffic Sign Estimated Traffic Division | - | - | - | Cannot be used |
| RSA Navigation Fusion Control | RSA navigation fusion control setting | OFF or ON | OFF: RSA navigation fusion control off ON: RSA navigation fusion control on | - |
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Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the road sign assist system, a message will be displayed on the multi-information display and the road sign assist system will be di
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST NOTICE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a pa
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Road Sign Assist System DTC No. Detection Item Link U010087 Lost Communication with ECM/PCM "A" Missing Message U012587 Lost Communication with Mu
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System Description
SYSTEM DESCRIPTION DESCRIPTION (a) The power steering ECU (rack and pinion power steering gear assembly) generates the necessary steering assist torque by calculating the steering assist force and controlling the motor current, based on the steering torque information from the torque sensor (rack an
Inspection
INSPECTION PROCEDURE 1. INSPECT STEERING COLUMN ASSEMBLY (a) Check that the 2 bushings are securely installed to the steering column assembly. HINT: If the bushings are deformed, missing or damaged, replace the steering column assembly with a new one.
