Lexus ES manuals

Lexus ES: 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

Terminal Description

Condition

Specified Condition

G130-1 (USB-)

-

USB communication line

-

-

G130-2 (USB+)

-

USB communication line

-

-

G130-3 (USBS) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 V

G128-31 (USBG) - Body ground

G - Body ground

DCM (Telematics Transceiver) power supply ground signal

Always

Below 1 V

G128-17 (VOT+) - G128-20 (E)

B - W-B

Sent voice signal

Calling while using the operator service

A waveform synchronized with the voice signals received voice is output

G128-15 (USBV) - G128-20 (E)

B - W-B

DCM (Telematics Transceiver) power supply signal

Engine switch off

Below 1 V

Engine switch on (IG)

4.5 to 5.25 V

G128-33 (VOT-) - G128-20 (E)

W - W-B

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

G128-34 (VOR-) - G128-20 (E)

G - W-B

Receive voice signal

Receiving a call while using the operator service

A waveform synchronized with the sent voice is output

G128-18 (VOR+) - G128-20 (E)

R - W-B

Receive voice signal

Receiving a call while using the operator service

A waveform synchronized with the sent voice is output

RADIO RECEIVER ASSEMBLY

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G1-15 (VOT+) - G5-1 (GND1)

R - W-B

Sent voice signal

Destination assist service in use and vehicle occupant speaking to operator

A waveform synchronized with the sent voice is output

G1-10 (USBV) - G5-1 (GND1)

B - W-B

DCM (Telematics transceiver) power supply

Engine switch on (ACC)

4.75 to 5.25 V

Engine switch off

A waveform synchronized with sound is output

G1-11 (USBG) - G5-1 (GND1)

G - W-B

DCM (Telematics Transceiver) power supply ground signal

Always

Below 1 V

G1-12 (SGND) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 V

G1-13 (VOR+) - G5-1 (GND1)

B - W-B

Receive voice signal

Destination assist service in use and operator speaking to vehicle occupant

A waveform synchronized with the received voice is output

G1-14 (VOR-) - G5-1 (GND1)

W - W-B

Receive voice signal

Destination assist service in use and operator speaking to vehicle occupant

A waveform synchronized with the received voice is output

G1-16 (VOT-) - G5-1 (GND1)

G - W-B

Sent voice signal

Destination assist service in use and vehicle occupant speaking to operator

A waveform synchronized with the sent voice is output

NAVIGATION ECU (w/ Navigation System)

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G108-2 (USB-)

-

USB communication line

-

-

G108-1 (USB+)

-

USB communication line

-

-

G108-3 (USBS) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 V

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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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 Problem Symptoms Table

PROBLEM SYMPTOMS TABLE HINT: Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect

 Parts Location

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