Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Terminals Of Ecu

TERMINALS OF ECU

CHECK DCM (TELEMATICS TRANSCEIVER)

Terminal No. (Symbol)

Terminal Description

Condition

Specified Condition

I200-1 (+B) - I200-20 (E)

Power source (+B)

Ignition switch off

11 to 14 V

I200-3 (SIG-) - I200-20 (E)

Ground

Always

Below 1 V

I200-4 (IND1) - I200-20 (E)

Manual (SOS) switch red indicator illumination signal

For 2 seconds after turning the ignition switch to ON

1 to 8.5 V

Ignition switch off

Below 1 V

I200-5 (MCVD) - I200-20 (E)

Telephone microphone assembly LH power supply

Ignition switch ON

7.5 to 8.5 V

Ignition switch off

Below 1 V

I200-6 (MCI+) - I200-20 (E)

Receive microphone voice signal

Voice being input to telephone microphone assembly LH

A waveform synchronized with microphone voice signal is input

I200-7 (MCI-) - I200-20 (E)

Receive microphone voice signal

Always

Below 1 V

I200-13 (GSW) - I200-20 (E)

Collision detection signal

Ignition switch ON

Pulse generation (Refer to waveform 1)

I200-14 (MUTE) - I200-20 (E)

MUTE Signal

Audio system playing

3.5 V or higher

Emergency call mode

Below 1 V

I200-15 (USBV) - I200-20 (E)

DCM (telematics transceiver) power supply signal

Ignition switch ON

4.75 to 5.25 V

Ignition switch off

Below 1 V

I200-16 (MCO+) - I200-20 (E)

Microphone voice signal

Voice being input to telephone microphone assembly LH

A waveform synchronized with microphone voice signal is input

I200-17 (VOT+) - I200-20 (E)

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

I200-19 (IG2) - I200-20 (E)

Power source (IG)

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

I200-20 (E) - Body ground

Ground

Always

Below 1 Ω

I200-21 (SIG1) - I200-3 (SIG-)

Manual (SOS) switch button condition signal

Manual (SOS) switch not pressed

1.3 to 1.9 V

Manual (SOS) switch pressed

0.5 to 0.8 V

I200-22 (IND2) - I200-20 (E)

Manual (SOS) switch green indicator illumination signal

For 2 seconds after turning the ignition switch to ON

1 to 8.5 V

Ignition switch off

Below 1 V

I200-23 (SGND) - I200-20 (E)

Shield ground

Always

Below 1 Ω

I200-25 (CANP)

CAN communication signal

-

-

I200-26 (CANN)

CAN communication signal

-

-

I200-31 (USBG) - Body ground

Shield ground

Always

Below 1 Ω

I200-32 (MCO-) - I200-20 (E)

Microphone voice signal

Always

Below 1 V

I200-33 (VOT-) - I200-20 (E)

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

I201-1 (SPI+) - I200-20 (E)

Sound signal

Audio system playing

A waveform synchronized with sound signals is output

I201-2 (SPI-) - I200-20 (E)

Sound signal

Audio system playing

A waveform synchronized with sound signals is output

I201-3 (SPO+) - I200-20 (E)

Sound signal

Audio system playing, or emergency call mode

A waveform synchronized with sound signals is output

I201-4 (SPO-) - I200-20 (E)

Sound signal

Audio system playing, or emergency call mode

A waveform synchronized with sound signals is output

  • #: There is no wire color information

(a) Oscilloscope waveform:

(1) Waveform 1

Item

Condition

Tester connection

I200-13 (GSW) - I200-20 (E)

Tool setting

5.0 V/DIV., 20 ms./DIV.

Vehicle condition

Ignition switch ON

CHECK STEREO COMPONENT AMPLIFIER ASSEMBLY (for 9 Speakers)

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CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

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