Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026PHD
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: TELEMATICS: TELEMATICS SYSTEM (for Gasoline Model): TERMINALS OF ECU; 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]

TERMINALS OF ECU

HINT:

Check from the rear of the connector while it is connected to the components.

DCM (TELEMATICS TRANSCEIVER) (for TMC Made)

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

I143-1 (+B) - I143-20 (E)

Power source (+B)

Always

11 to 14 V

I143-15 (USBV) - I143-20 (E)

DCM (telematics transceiver) power supply signal

Ignition switch On

4.75 to 5.25 V

Ignition switch off

Below 1 V

I143-17 (VOT+) - I143-20 (E)

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

I143-19 (IG2) - I143-20 (E)

Power source (IG)

Ignition switch On

11 to 14 V

Ignition switch off

Below 1 V

I143-20 (E) - Body ground

Ground

Always

Below 1 Ω

I143-25 (CANP)

CAN communication signal

-

-

I143-26 (CANN)

CAN communication signal

-

-

I143-31 (USBG) - Body ground

Shield ground

Always

Below 1 Ω

I143-33 (VOT-) - I143-20 (E)

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

t7-1 (USB-)

USB communication line

-

-

t7-2 (USB+)

USB communication line

-

-

t7-3 (USBS) - Body ground

Shield ground

Always

Below 1 V

RADIO AND DISPLAY RECEIVER ASSEMBLY (for TMC Made)

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Single Knob Type): TERMINALS OF ECU

DCM (TELEMATICS TRANSCEIVER) (for TMMMS Made)

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

I143-1 (+B) - I143-20 (E)

Power source (+B)

Always

11 to 14 V

I143-19 (IG2) - I143-20 (E)

Power source (IG)

Ignition switch On

11 to 14 V

Ignition switch off

Below 1 V

I143-20 (E) - Body ground

Ground

Always

Below 1 Ω

I143-25 (CANP)

CAN communication signal

-

-

I143-26 (CANN)

CAN communication signal

-

-

I143-30 (SLPD) - I143-20 (E)

Steering lock bar position signal

Steering locked

11 to 14 V

Steering unlocked

Below 1.5 V

CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) (for TMMMS Made)

Click here 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function (Gasoline Model, TMMMS Made)): TERMINALS OF ECU