Toyota CH-R Service Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK DCM (TELEMATICS TRANSCEIVER)

*a

Connector Color: Natural (to Telephone Sub Antenna)

*b

Connector Color: Blue (to Telephone Main Antenna)

*c

Connector Color: Gray (to GPS Antenna)

-

-

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F134-1 (+B) - F134-4 (E)

W - W-B

Battery power supply

Always

11 to 14 V

F134-2 (SPI+) - F134-4 (E)

LA-LG - W-B

Sound signal

Audio system playing

A waveform synchronized with sound is output

F134-3 (SPI-) - F134-4 (E)

LA-L - W-B

Sound signal

Audio system playing

A waveform synchronized with sound is output

F134-4 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

F134-5 (SPO+) - F134-4 (E)

LA-LG - W-B

Sound signal

Audio system playing, or Emergency call mode

A waveform synchronized with sound is output

F134-6 (SPO-) - F134-4 (E)

LA-L - W-B

Sound signal

Audio system playing, or Emergency call mode

A waveform synchronized with sound is output

F134-7 (IG2) - F134-4 (E)

B - W-B

IG power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

F134-8 (ACC) - F134-4 (E)

GR - W-B

ACC power supply

Ignition switch ACC

11 to 14 V

Ignition switch off

Below 1 V

F134-9 (SLED) - F134-4 (E)

LG - W-B

Manual (SOS) switch illumination power supply

Ignition switch ACC

11 to 14 V

Ignition switch off

Below 1 V

F134-11 (IND1) - F134-4 (E)

B - W-B*3

P - W-B*4

Manual (SOS) switch red indicator illumination signal

For 2 seconds after turning the ignition switch ON

1 to 8.5 V

Ignition switch off

Below 1 V

F134-12 (IND2) - F134-4 (E)

BE - W-B

Manual (SOS) switch green indicator illumination signal

For 2 seconds after turning the ignition switch ON

1 to 8.5 V

Ignition switch off

Below 1 V

F134-15 (CANP)

GR

CAN communication signal

-

-

F134-16 (CANN)

LG

CAN communication signal

-

-

F134-17 (MUTE) - F134-4 (E)

L - W-B

Mute signal

Audio system playing

3.5 V or higher

Emergency call mode

Below 1 V

F134-18 (MCO+) - F134-4 (E)*1

B - W-B*3

G - W-B*4

Sent microphone voice signal

See "Check Microphone"

-

F134-18 (MCO+) - F134-4 (E)*2

B - W-B *3

G - W-B*4

Sent microphone voice signal

See "Check Microphone"

-

F134-19 (MCO-) - F134-4 (E)*1

W - W-B*3

R - W-B*4

Sent microphone voice signal

See "Check Microphone"

-

F134-19 (MCO-) - F134-4 (E)*2

W - W-B*3

R - W-B*4

Sent microphone voice signal

See "Check Microphone"

-

F134-24 (GSW) - F134-4 (E)

W - W-B

Collision detection signal

Ignition switch ON

Pulse generation

(Refer to waveform 1)

F134-26 (SIG-) - F134-4 (E)

SB - W-B

Ground

Always

Below 1 V

F134-27 (SIG1) - F134-4 (E)

L - W-B

Manual (SOS) switch condition signal

Manual (SOS) switch not pressed

1.5 to 2.0 V

Manual (SOS) switch pressed

0.5 to 0.8 V

F134-32 (SGND) - F134-4 (E)

Shield - W-B

Shield ground

Always

Below 1 V

F134-33 (MCVD) - F134-4 (E)

B - W-B

Telephone microphone assembly power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4 to 6 V

F134-34 (MIC+) - F134-4 (E)*1

W - W-B

Receive microphone voice signal

See "Check Microphone"

-

F134-34 (MCI+) - F134-4 (E)*2

W - W-B

Receive microphone voice signal

See "Check Microphone"

-

F134-35 (MCI-) - F134-4 (E)*1

R - W-B

Receive microphone voice signal

See "Check Microphone"

-

F134-35 (MCI-) - F134-4 (E)*2

R - W-B

Receive microphone voice signal

See "Check Microphone"

-

F133-1(USB-) - Body ground

#

USB communication line

-

-

F133-2(USB+) - Body ground

#

USB communication line

-

-

F133-3(USBG) - F134-4 (E)

P - W-B

DCM (Telematics Transceiver) power supply ground signal

Always

Below 1 Ω

F133-4(VOT+) - F134-4 (E)

G - W-B

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

F133-5(USBV) - F134-4 (E)

Y - W-B

DCM (Telematics Transceiver) power supply signal

Ignition switch off

Below 1 V

Ignition switch ON

4.5 to 5.25 V

F133-6(USBS) - F134-4 (E)

Shielded - W-B

Shield ground

Always

Below 1 Ω

F133-7(VOT-) - F134-4 (E)

W - W-B

Sent voice signal

Calling while using the operator service

A waveform synchronized with the received voice is output

F133-8(VOR-) - F134-4 (E)

B - W-B

Receive voice signal

Receiving a call while using the operator service

A waveform synchronized with the sent voice is output

F133-9(VOR+) - F134-4 (E)

R - W-B

Receive voice signal

Receiving a call while using the operator service

A waveform synchronized with the sent voice is output

  • *1: w/o Navigation System
  • *2: w/ Navigation System
  • *3: for TMMT Made
  • *4: for TMC Made
  • #: There is no wire color information

(a) Oscilloscope waveform:

(1) Waveform 1

Item

Condition

Tester connection

F134-24 (GSW) - F134-4 (E)

Tool setting

5.0 V/DIV., 20 ms/DIV.

Vehicle condition

Ignition switch ON

CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY

w/o Navigation System: Click here

w/ Navigation System: Click here

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