Lexus ES manuals

Lexus ES: System Diagram

SYSTEM DIAGRAM

w/ Navigation System

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 Terminals Of Ecu

TERMINALS OF ECU DCM (TELEMATICS TRANSCEIVER) *a to Telephone Antenna (Sub) *b to GPS Antenna *c to Telephone Antenna (Main) - - Terminal No. (Symbol) Wiring Color Termin

 Lexus Enform System (for Hv Model)

 Confirm Cellular Phone Functionality

PROCEDURE 1. CHECK CUSTOMER'S CELLULAR PHONE COMPATIBILITY (a) Check if the cellular phone is compatible (Refer to http://www.lexus.com/MobileLink/). Result Proceed to Cellular phone

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 Repair

REPAIR CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH side and LH side. The following procedure is for the LH side. If the installation area of the headlight assembly is damaged, use a supply retainer for a low-cost repair. Ensure that the headlight assembly is not damaged.

 ECM Power Source Circuit

DESCRIPTION When the engine switch is turned on (IG), the battery voltage is applied to the IGSW terminal of the ECM. The output signal from the MREL terminal of the ECM causes a current to flow to the coil of the EFI-MAIN NO. 1 relay, closing the contacts and supplying power to terminals +B and +B2

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