Toyota CH-R Service Manual: Terminals Of Ecu

TERMINALS OF ECU

HINT:

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

RADIO AND DISPLAY RECEIVER ASSEMBLY

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F132-1 (FR+) - F129-1 (GND1)

LA-LG - LA

Sound signal (Front right)

Audio system playing

A waveform synchronized with sound signals is output

F132-2 (FL+) - F129-1 (GND1)

W - LA

Sound signal (Front left)

Audio system playing

A waveform synchronized with sound signals is output

F132-3 (RL+) - F129-1 (GND1)

B - LA

Sound signal (Rear left)

Audio system playing

A waveform synchronized with sound signals is output

F132-6 (FR-) - F129-1 (GND1)

LA-L - LA

Sound signal (Front right)

Audio system playing

A waveform synchronized with sound signals is output

F132-7 (FL-) - F129-1 (GND1)

B - LA

Sound signal (Front left)

Audio system playing

A waveform synchronized with sound signals is output

F132-8 (RL-) - F129-1 (GND1)

Y - LA

Sound signal (Rear left)

Audio system playing

A waveform synchronized with sound signals is output

F129-1 (GND1) - Body ground

LA - Body ground

Ground

Always

Below 1 V

F129-4 (+B1) - F129-1 (GND1)

LA-SB - LA

Power source (+B)

Engine switch off

11 to 14 V

F129-10 (AGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

F129-11 (VAL+) - F129-13 (VA-)

B - R

Sound signal (Left)

External device playing (When stereo jack used)

A waveform synchronized with sound signals is output

F129-12 (VAR+) - F129-13 (VA-)

W - R

Sound signal (Right)

External device playing (When stereo jack used)

A waveform synchronized with sound signals is output

F129-13 (VA-) - F129-1 (GND1)

R - LA

Ground

Always

Below 1 V

F129-14 (ADPG) - F129-1 (GND1)

R - LA

External device connection detection signal

External device connected

Below 1 V

External device not connected

2.1 to 3 V

F129-15 (ACC1) - F129-1 (GND1)

GR - LA

Power source (ACC)

Engine switch off

Below 1 V

Engine switch on (ACC)

11 to 14 V

F129-21 (SW1) - F129-24 (SWG)

GR - W-B

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

Seek+ switch pushed

0.27 to 0.35 V

Seek- switch pushed

0.86 to 1.03 V

Volume+ switch pushed

1.51 to 1.79 V

Volume- switch pushed

2.22 to 2.66 V

F129-22 (SW2) - F129-24 (SWG)

G - W-B

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

MODE switch pushed

0.27 to 0.35 V

Off hook switch pushed

1.51 to 1.79 V

On hook switch pushed

0.86 to 1.03 V

Voice switch pushed

2.22 to 2.66 V

F129-24 (SWG) - F129-1 (GND1)

W-B - LA

Steering pad switch ground

Always

Below 1 V

F129-27 (SPD) - F129-1 (GND1)

V - LA

Vehicle speed signal

See "Check Vehicle Signal" in Operation Check

Click here

-

F129-28 (REV) - F129-1 (GND1)

R - LA*1

L - LA*2

Reverse signal

See "Check Vehicle Signal" in Operation Check

-

F131-5 (CNH1)

R

Local bus communication signal

-

-

F131-6 (CNL1)

L

Local bus communication signal

-

-

F131-15 (ILL+) - F129-1 (GND1)

G - LA

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

11 to 14 V

F131-16 (ILL-) - F129-1 (GND1)

B - LA

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

Pulse generation

F131-19 (IG) - F129-1 (GND1)

B - LA

Power source (IG)

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V

F131-20 (PKB) - F129-1 (GND1)

P - LA

Parking brake signal

See "Check Vehicle Signal" in Operation Check

Click here

-

F131-21 (MIN+) - F129-1 (GND1)

B - LA*1

G - LA*2

Microphone voice signal

See "Check Microphone" in Operation Check

Click here

-

F131-22 (MIN-) - F129-1 (GND1)

W - LA*1

R - LA*2

Microphone voice signal

See "Check Microphone" in Operation Check

Click here

-

F131-23 (MACC) - F129-1 (GND1)

B - LA

Microphone power supply

Engine switch off

Below 1 V

engine switch on (ACC)

4 to 6 V

F131-24 (SGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

F131-25 (SNS2) - F129-1 (GND1)

V - LA*1

G - LA*2

Microphone connection detection signal

Always

Below 1 V

j4-1 (USVI)

-

Power source

-

-

j4-2 (US1-)

-

Data signal

-

-

j4-3 (US1+)

-

Data signal

-

-

j4-4 (UGD1)

-

Ground

-

-

j5-1 (USB+)

-

Data signal

-

-

j5-2 (USB-)

-

Data signal

-

-

j5-3 (USBG)

-

Shield ground

-

-

j6-1 (GV-)

-

Video signal (Digital)

-

-

j6-2 (GV+)

-

Video signal (Digital)

-

-

j6-3 (GND) - Body ground

-

Shield ground

Always

Below 1 Ω

F130-7 (SUP) - F129-1 (GND1)

W - LA*1

R - LA*2

Start up signal

20 seconds elapse after turning the engine switch on (ACC)

11 to 14 V

F130-10 (USBV)

Y

DCM (telematics transceiver) power supply

Engine switch off

Below 1 V

engine switch on (ACC)

4.75 to 5.25 V

F130-11 (USBG)

P

Ground

-

-

F130-12 (SGND) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 Ω

F130-19 (RST)*3

L

-

-

-

F130-22 (SI+) - F129-1 (GND1)

B - LA*1

W - LA*2

Voice signal

Voice guidance sounding

A waveform synchronized with sound is output

F130-23 (SI-) - F129-1 (GND1)

W - LA*1

B - LA*2

Voice signal

Voice guidance sounding

A waveform synchronized with sound is output

F130-24 (SGND) - F129-1 (GND1)

Shielded - LA

Shield ground

Always

Below 1 Ω

F130-25 (MCO+) - F130-26 (MCO-)

W - B

Microphone voice signal

See "Check Microphone (DCU)" in Operation Check

-

F130-26 (MCO-) - F129-1 (GND1)

B - LA

Microphone voice signal

See "Check Microphone (DCU)" in Operation Check

-

F130-28 (REV2) - F129-1 (GND1)

B - LA*1

G - LA*2

Reverse signal

Hybrid control system operating, shift position not in R → in R

2 V or less → 11 to 14 V

RA-5 (ANT+) - F129-1 (GND1)

- - LA

Power source of antenna

Engine switch on (ACC)

Radio switch on and FM or AM selected

11 to 14 V

  • *1: for TMMT Made
  • *2: for TMC Made
  • *3: It is connected, but not used

NAVIGATION ECU

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F135-6 (VOI+) - F135-23 (GND)

B - W-B*2

W - W-B*3

Voice signal

Voice guidance sounding

A waveform synchronized with sound is output

F135-7 (VOI-) - F135-23 (GND)

W - W-B*2

B - W-B*3

Voice signal

Voice guidance sounding

A waveform synchronized with sound is output

F135-8 (SLD1) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 Ω

F135-9 (SPD) - F135-23 (GND)

V - W-B

Vehicle speed signal

See "Check GPS and Vehicle Sensors" in Operation Check

-

F135-10 (+B) - F135-23 (GND)

Y - W-B

Power source (+B)

Always

11 to 14 V

F135-13 (MIC+) - F135-23 (GND)

W - W-B

Microphone voice signal

See "Microphone Check (MEU)" in Operation Check

-

F135-14 (MIC-) - Body ground

B - Body ground

Microphone voice signal

See "Microphone Check (MEU)" in Operation Check

-

F135-19 (REV2) - F135-23 (GND)

B - W-B*2

G - W-B*3

Reverse signal

Hybrid control system operating, shift position not in R → in R

2 V or less → 11 to 14 V

F135-21 (SUP) - F135-23 (GND)

W - W-B*2

R - W-B*3

Power source (ACC)

20 seconds elapse after turning the engine switch on (ACC)

11 to 14 V

F135-22 (RST)*1

L

-

-

-

F135-23 (GND) - Body ground

W-B - Body ground

Ground

Engine switch off

Below 1 Ω

F140-1 (USB+)

-

USB communication line

-

-

F140-2 (USB-)

-

USB communication line

-

-

F140-3 (USBS) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 Ω

GU-1 (GVO-)

-

Video signal (Digital)

-

-

GU-2 (GVO+)

-

Video signal (Digital)

-

-

GU-3 (GVG1) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 Ω

GU-4 (USB+)

-

USB communication line

-

-

GU-5 (USB-)

-

USB communication line

-

-

GU-6 (USBG) - Body ground

Shielded - Body ground

Shield ground

Always

Below 1 Ω

  • *1: It is connected, but not used
  • *2: for TMMT Made
  • *3: for TMC Made

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Click here

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