Lexus ES manuals

Lexus ES: Utility

Lexus ES (XZ10) Service Manual / Engine & Hybrid System / Cruise Control / Road Sign Assist System (for Gasoline Model) / Utility

UTILITY

NOTICE:

If the forward recognition camera has been replaced due to a malfunction in the road sign assist system, be sure to perform forward recognition camera adjustment. Otherwise all systems that use the forward recognition camera may be affected.

HINT:

Forward recognition camera adjustment can be performed by using either One Time Recognition or Sequential Recognition.

One Time Recognition: Click here

Sequential Recognition: Click here

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 Terminals Of Ecu

TERMINALS OF ECU NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the Techstream once the inspection has been completed. D

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK DTC (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

 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. C

SEE MORE:

 Hybrid/EV Battery Voltage High (P31B300)

DESCRIPTION If the voltage of any HV battery cell exceeds the threshold, charging will be prohibited. If charging cannot be prohibited due to an hybrid battery system malfunction, this DTC will be stored. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate

 Assist Map Number Un-Writing (C1581)

DESCRIPTION This DTC will be stored if the power steering ECU (rack and pinion power steering gear assembly) determines that the assist map is not written in the ECU. DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate Return-to-normal Condition Note C1581

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