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 |
READ NEXT:
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
Confirm Vehicle Headunit 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
SEE MORE:
Camera Position Adjustment Incomplete (C1697)
DESCRIPTION This DTC is stored when the parking assist ECU judges that the camera initial setting has not been memorized (camera view adjustment is incomplete). DTC No. Detection Item DTC Detection Condition Trouble Area C1697 Camera Position Adjustment Incomplete Camera initial set
ECM Power Source Circuit
DESCRIPTION When the power switch is turned to on (IG), the auxiliary battery voltage is applied to IGSW of the ECM. When the transistor in the MREL circuit operates, current flows from the auxiliary battery to ground through the drive circuit of the EFI-MAIN NO. 1 relay, thus operating the relay wh
