Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

HINT:

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

1. RADIO AND DISPLAY RECEIVER ASSEMBLY


Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

E4-1 (FR+) - E4-7 (GND1)

LG - BR

Sound signal (Front right)

Audio system playing

A waveform synchronized with sound signals is output

E4-2 (FL+) - E4-7 (GND1)

P - BR

Sound signal (Front left)

Audio system playing

A waveform synchronized with sound signals is output

E4-3 (ACC1) - E4-7 (GND1)

GR - BR

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

E4-4 (+B1) - E4-7 (GND1)

SB - BR

Power source (+B)

Always

11 to 14 V

E4-5 (FR-) - E4-7 (GND1)

L - BR

Sound signal (Front right)

Audio system playing

A waveform synchronized with sound signals is output

E4-6 (FL-) - E4-7 (GND1)

V - BR

Sound signal (Front left)

Audio system playing

A waveform synchronized with sound signals is output

E4-7 (GND1) - Body ground

BR - Body ground

Ground

Always

Below 1 V

E4-10 (ILL+) - E4-7 (GND1)

G - BR

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

11 to 14 V

E5-1 (RR+) - E4-7 (GND1)

R - BR

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

E5-2 (RL+) - E4-7 (GND1)

B - BR

Sound signal (Rear left)

Audio system playing

A waveform synchronized with sound signals is output

E5-3 (RR-) - E4-7 (GND1)

W - BR

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

E5-5 (ILL-) - E4-7 (GND1)

W - BR

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

Pulse generation

E5-6 (RL-) - E4-7 (GND1)

Y - BR

Sound signal (Rear left)

Audio system playing

A waveform synchronized with sound signals is output

E42-1 (IG) - E4-7 (GND1)

V - BR

Power source (IG)

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

E42-4 (MACC) - E4-7 (GND1)

R - BR

Microphone power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4 to 6 V

E42-5 (MIN+) - E4-7 (GND1)

B - BR

Microphone voice signal

See "Check Microphone" in Operation Check (See page )


-

E42-6 (SNS2) - E4-7 (GND1)

Y - BR

Microphone connection detection signal

Always

Below 1 V

E42-9 (CANH)

SB

CAN communication signal

-

-

E42-10 (CANL)

W

CAN communication signal

-

-

E42-11 (AGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

E42-15 (PKB) - E4-7 (GND1)

R - BR

Parking brake signal

See "Check Vehicle Signal" in Operation Check (See page )


-

E42-17 (SPD) - E4-7 (GND1)

BR - BR

Vehicle speed signal

See "Check Vehicle Signal" in Operation Check (See page )


-

E42-18 (SGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

E42-19 (MIN-) - E4-7 (GND1)

W - BR

Microphone voice signal

See "Check Microphone" in Operation Check (See page )


-

E42-21 (SW1) - E42-23 (SWG)

GR - R

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

Up switch pushed

0.27 to 0.35 V

Down 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

E42-22 (SW2) - E42-23 (SWG)

LG - R

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

MODE/HOLD switch pushed

0.27 to 0.35 V

On hook switch pushed

0.86 to 1.03 V

Off hook switch pushed

1.51 to 1.79 V

Voice switch pushed

2.22 to 2.66 V

E42-23 (SWG) - E4-7 (GND1)

R - BR

Steering pad switch ground

Always

Below 1 V

E42-24 (SW3) - E42-23 (SWG)

L - R

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

Enter switch pushed

0.27 to 0.35 V

Back switch pushed

0.86 to 1.03 V

Right switch pushed

1.51 to 1.79 V

Left switch pushed

2.22 to 2.66 V

E42-25 (ADPG) - E4-7 (GND1)

SB - BR

External device connection detection signal

External device connected

Below 1 V

External device not connected

2.1 to 3 V

E42-26 (VAR+) - E42-27 (VA-)

B - W

Sound signal (Right)

External device playing (When stereo jack used)

A waveform synchronized with sound signals is output

E42-27 (VA-) - E4-7 (GND1)

W - BR

Ground

Always

Below 1 V

E42-28 (VAL+) - E42-27 (VA-)

B - W

Sound signal (Left)

External device playing (When stereo jack used)

A waveform synchronized with sound signals is output

E52-11 (CA+) - E4-7 (GND1)*1

B - BR

Television camera power supply

Ignition switch ACC

5.5 to 7.05 V

E52-12 (V+) - E4-7 (GND1)*1

R - BR

Video signal

Ignition switch ON

Shift lever in R

Camera lens not covered, displaying an image

Pulse generation

(Refer to waveform 1)

Ignition switch ON

Shift lever in R

Camera lens covered, blacking out screen

Pulse generation

(Refer to waveform 2)

E52-23 (CGND) - Body ground*1

Shield - Body ground

Shield ground

Always

Below 1 V

E52-24 (V-) - E4-7 (GND1)*1

W - BR

Ground

Always

Below 1 V

V2-3 (ACC2) - E4-7 (GND1)*2

Y - BR

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

V2-4 (+B2) - E4-7 (GND1)*2

R - BR

Power source (+B)

Always

11 to 14 V

V2-8 (GND2) - Body ground*2

B - Body ground

Ground

Always

Below 1 V

E48-1 (UPO)

-

Power source

-

-

E48-2 (UDO-)

-

Data signal

-

-

E48-3 (UDO+)

-

Data signal

-

-

E48-4 (UESG)

-

Ground

-

-

E48-5 (USG1)

-

Shield ground

-

-

V6-1 (USV4)*2

-

Power source

-

-

V6-2 (US4-)*2

-

Data signal

-

-

V6-3 (US4+)*2

-

Data signal

-

-

V6-4 (UGD4)*2

-

Ground

-

-

V6-5 (USG4)*2

-

Shield ground

-

-

V4-1 (LV1)*2

-

LVDS communication signal

-

-

RA-5 (ANT+) - E4-7 (GND1)

- - BR

Power source of antenna

Ignition switch ACC

Radio switch on and FM or AM selected

11 to 14 V

  • *1: w/ Rear View Monitor System
  • *2: w/ SDARS System

(a) Reference (Oscilloscope waveform):



(1) Waveform 1 (camera lens not covered, displaying an image)

Item

Content

Measurement terminal

E52-12 (V+) - E4-7 (GND1)

Measurement setting

200 mV/DIV., 50 μs./DIV.

Condition

Ignition switch ON, shift lever in R

HINT:

  • The video waveform changes according to the image sent by the rear television camera assembly.
  • The video waveform is constantly output when the ignition switch is ACC.

(2) Waveform 2 (camera lens covered, blacking out the screen)

Item

Content

Measurement terminal

E52-12 (V+) - E4-7 (GND1)

Measurement setting

200 mV/DIV., 50 μs./DIV.

Condition

Ignition switch ON, shift lever in R

HINT:

  • The video waveform changes according to the image sent by the rear television camera assembly.
  • The video waveform is constantly output when the ignition switch is ACC.
Text in Illustration

*a

Waveform 1 (camera lens not covered, displaying an image)

*b

Waveform 2 (camera lens covered, blacking out the screen)

*c

Synchronization Signal

*d

Video Waveform

2. STEREO COMPONENT TUNER ASSEMBLY (w/ SDARS System)


Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

V7-3 (ACC2) - V7-8 (GND2)

Y - B

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

V7-4 (+B2) - V7-8 (GND2)

R - B

Power source (+B)

Always

11 to 14 V

V7-8 (GND2) - Body ground

B - Body ground

Ground

Always

Below 1 V

V9-1 (USV4)

-

Power source

-

-

V9-2 (US4-)

-

Data signal

-

-

V9-3 (US4+)

-

Data signal

-

-

V9-4 (UGD4)

-

Ground

-

-

V9-5 (USG4)

-

Shield ground

-

-

V8-1 (LV1)

-

LVDS communication signal

-

-

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