Lexus ES: Precaution
PRECAUTION
PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL
NOTICE:
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After the engine switch is turned off, the radio receiver assembly records various types of memory and settings. As a result, after turning the engine switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal.
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When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the terminal is reconnected.
System Name | See Procedure |
Lane Control System (for Gasoline Model) | |
Parking Support Brake System (for Gasoline Model) |
Parking Assist Monitor System (for Gasoline Model) |
Panoramic View Monitor System (for Gasoline Model) |
Pre-collision System (for Gasoline Model) |
Power Trunk Lid System (for Gasoline Model) |
Lighting System (for Gasoline Model) |
PRECAUTION FOR NAVIGATION SYSTEM
NOTICE:
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When replacing the radio receiver assembly or navigation ECU, always replace it with a new one. If a radio receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
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A communication malfunction DTC may be stored.
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The radio receiver assembly or navigation ECU may not operate normally.
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When performing the following work, the navigation system may restart when turning the engine switch on (ACC) (due to radio receiver assembly and navigation ECU certification).
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Repair or replace the negative (-) battery terminal due to it being disconnected or depleted.
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The radio receiver assembly or navigation ECU replacement or removal and installation.
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When replacing the DCM (telematics transceiver), be sure to replace it with a new one (w/ Manual (SOS) Switch).
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After replacing the radio receiver assembly, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display assembly, update the software of the navigation ECU.
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After replacing the navigation ECU, if the "New software is not compatible with the system. Contact your dealer." on-screen message is displayed on the multi-display assembly, update the software of the radio receiver assembly.
(a) If any of the following parts are replaced, refer to Initialization in Repair Instruction.
Click here
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Radio receiver assembly*1
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DCM (telematics transceiver)*2
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PROBLEM SYMPTOMS TABLE NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Prec
CAUTION / NOTICE / HINT NOTICE:
Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Pre
DESCRIPTION This is the power source circuit to operate the radio receiver assembly. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system before perfor
SEE MORE:
VEHICLE CONTROL HISTORY CHECK VEHICLE CONTROL HISTORY (HYBRID CONTROL SYSTEM) (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Hybrid Control / Utility / Vehicle Control History (RoB). Powertrain > H
DESCRIPTION This DTC is stored if the rear television camera assembly judges as a result of its self check that the vehicle information received from the main body ECU (multiplex network body ECU) via CAN communication and the vehicle information stored in the rear television camera assembly do not
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