Lexus ES manuals

Lexus ES: Precaution

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System (for Gasoline Model) / Precaution

PRECAUTION

PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL

NOTICE:

  • 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.
  • 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:

  • 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:
    • A communication malfunction DTC may be stored.
    • The radio receiver assembly or navigation ECU may not operate normally.
  • 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).
    • Repair or replace the negative (-) battery terminal due to it being disconnected or depleted.
    • The radio receiver assembly or navigation ECU replacement or removal and installation.
  • When replacing the DCM (telematics transceiver), be sure to replace it with a new one (w/ Manual (SOS) Switch).
  • 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.
  • 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.

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  • Radio receiver assembly*1
  • DCM (telematics transceiver)*2
  • *1: After replacing the radio receiver assembly of vehicles subscribed to pay-type satellite radio broadcasts, SiriusXM radio ID registration is necessary (w/ SXM Function).

    *2: w/ Manual (SOS) Switch

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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

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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

 Radio Receiver Power Source Circuit

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

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 Fail-safe Chart

FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the tire pressure warning system, the tire pressure warning light illuminates after blinking for 1 minute to inform the driver of the system failure. (b) As a result of this, tire pressure monitoring is disabled and a DTC is stored

 VC Output Circuit

DESCRIPTION The ECM constantly generates a 5 V power source voltage from the battery voltage supplied to the +B, +B2 (BATT) terminals to operate the microprocessor. The ECM also provides this power to the sensors through the VC output circuit. When the VC circuit has a short circuit, the microproce

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