Toyota Camry owners & service manuals

Toyota Camry (XV70): 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

K4-1 (FR+) - K3-1 (GND1)

LA-LG - BR*1

W - BR*2

Sound signal (Front right)*1

Sound signal (Right)*2

Audio system playing

A waveform synchronized with sound signals is output

K4-2 (FL+) - K3-1 (GND1)

LA-B - BR*1

B - BR*2

Sound signal (Front left)*1

Sound signal (Left)*2

Audio system playing

A waveform synchronized with sound signals is output

K4-3 (RL+) - K3-1 (GND1)

LA-G - BR*1

Y - BR*2

Sound signal (Rear left)*1

Voice signal*2

Audio system playing*1

Voice guidance sounding*2

A waveform synchronized with sound signals is output*1

A waveform synchronized with voice signals is output*2

K4-4 (RR+) - K3-1 (GND1)*1

LA-R - BR

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

K4-6 (FR-) - K3-1 (GND1)

LA-L - BR*1

R - BR*2

Sound signal (Front right)*1

Sound signal (Right)*2

Audio system playing

A waveform synchronized with sound signals is output

K4-7 (FL-) - K3-1 (GND1)

LA-R - BR*1

G - BR*2

Sound signal (Front left)*1

Sound signal (Left)*2

Audio system playing

A waveform synchronized with sound signals is output

K4-8 (RL-) - K3-1 (GND1)

LA-GR - BR*1

BR - BR*2

Sound signal (Rear left)*1

Voice signal*2

Audio system playing

A waveform synchronized with sound signals is output

K4-9 (RR-) - K3-1 (GND1)*1

LA-G - BR

Sound signal (Rear right)

Audio system playing

A waveform synchronized with sound signals is output

K3-1 (GND1) - Body ground

BR - Body ground

Ground

Always

Below 1 V

K3-4 (+B1) - K3-1 (GND1)

LG - BR*5

R - BR*8

Power source (+B)

Always

11 to 14 V

K3-5 (TX1+)*2

B

AVC-LAN communication signal

-

-

K3-6 (TX1-)*2

W

AVC-LAN communication signal

-

-

K3-15 (ACC1) - K3-1 (GND1)

GR - BR

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

K3-21 (SW1) - K3-24 (SWG)

W - L

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

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

K3-22 (SW2) - K3-24 (SWG)

LG - L

Steering pad switch signal

No switch pushed

2.97 to 3.56 V

MODE switch pushed

0.27 to 0.35 V

On/off hook switch pushed

1.51 to 1.79 V

Voice switch pushed

2.22 to 2.66 V

K3-24 (SWG) - K3-1 (GND1)

L - BR

Steering pad switch ground

Always

Below 1 V

K3-25 (MUT1) - K3-1 (GND1)*2

BE - BR

Mute signal

Audio system playing

2.0 V or higher

Audio system changing modes

Below 1 V

K3-27 (SPD) - K3-1 (GND1)

LG - BR

Vehicle speed signal

See "Check Vehicle Signal" in Operation Check

Click here

-

K3-28 (REV) - K3-1 (GND1)

W - BR

Reverse signal

See "Check Vehicle Signal" in Operation Check

Click here

-

K2-3 (TMUT) - K3-1 (GND1)*3

BE - BR

Mute signal

Audio system playing

Above 2.0 V

Emergency call mode

Below 1 V

K2-5 (CNH1)*5

L

Local bus communication signal

-

-

K2-6 (CNL1)*5

W

Local bus communication signal

-

-

K2-13 (CANH)

B

CAN communication signal

-

-

K2-14 (CANL)

W

CAN communication signal

-

-

K2-15 (ILL+) - K3-1 (GND1)

G - BR

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

11 to 14 V

K2-16 (ILL-) - K3-1 (GND1)

BE - BR

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

Pulse generation

K2-19 (IG) - K3-1 (GND1)

W - BR

Power source (IG)

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

K2-20 (PKB) - K3-1 (GND1)

LG - BR*6

B - BR*7

Parking brake signal

See "Check Vehicle Signal" in Operation Check

Click here

-

K2-21 (MIN+) - K3-1 (GND1)

SB - BR*3

W - BR*4

Microphone voice signal

See "Check Microphone" in Operation Check

Click here

-

K2-22 (MIN-) - K3-1 (GND1)

V - BR*3

R - BR *4

Microphone voice signal

See "Check Microphone" in Operation Check

Click here

-

K2-23 (MACC) - K3-1 (GND1)*4

B - BR

Microphone power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4 to 6 V

K2-24 (SGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

K2-25 (SNS2) - K3-1 (GND1)

BE - BR

Microphone connection detection signal

Always

Below 1 V

K135-1 (USV1)

-

Power source

-

-

K135-2 (US1-)

-

Data signal

-

-

K135-3 (US1+)

-

Data signal

-

-

K135-4 (UGD1)

-

Ground

-

-

K135-5 (USG1)

-

Shield ground

-

-

K136-1 (USB4+)*3

-

Data signal

-

-

K136-2 (USB4-)*3

-

Data signal

-

-

K136-3 (UGD4)*3

-

Ground

-

-

K1-10 (USBV) - K1-11 (USBG)*3

L - GR

DCM (telephone microphone assembly) power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4.75 to 5.25 V

K1-11 (USBG) - Body ground*3

GR

Ground

-

-

RA-5 (ANT+) - K3-1 (GND1)

- - BR

Power source of antenna

Ignition switch ACC

Radio switch on and FM or AM selected

11 to 14 V

  • *1: for 6 Speakers
  • *2: for 9 Speakers
  • *3: w/ Manual (SOS) Switch
  • *4: w/o Manual (SOS) Switch
  • *5: for 9 Inch Display Type
  • *6: w/o Electric Parking Brake System
  • *7: w/ Electric Parking Brake System
  • *8: for 7 Inch Display Type

STEREO COMPONENT AMPLIFIER ASSEMBLY (for 9 Speakers)

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

K14-1 (+B) - K14-3 (GND)

L - W-B

Power source (+B)

Always

11 to 14 V

K14-3 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

K14-8 (WF2+) - K14-3 (GND)

W - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

K14-9 (RL+) - K14-3 (GND)

B - W-B

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

K14-10 (WF1+) - K14-3 (GND)

BE - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

K14-11 (RR+) - K14-3 (GND)

R - W-B

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

K14-12 (TWL+) - K14-3 (GND)

B - W-B

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

K14-13 (FL+) - K14-3 (GND)

LG - W-B

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

K14-14 (TWR+) - K14-3 (GND)

W - W-B*1

BE - W-B*2

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

K14-15 (FR+) - K14-3 (GND)

BE - W-B

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

K14-16 (+B2) - K14-3 (GND)

B - W-B

Power source (+B)

Always

11 to 14 V

K14-18 (GND2) - Body ground

W-B - Body ground

Ground

Always

Below 1 V

K14-23 (WF2-) - K14-3 (GND)

R - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

K14-24 (RL-) - K14-3 (GND)

LG - W-B

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

K14-25 (WF1-) - K14-3 (GND)

L - W-B

Sound signal (Woofer)

Audio system playing

A waveform synchronized with sound signals is output

K14-26 (RR-) - K14-3 (GND)

W - W-B

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

K14-27 (TWL-) - K14-3 (GND)

GR - W-B

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

K14-28 (FL-) - K14-3 (GND)

W - W-B

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

K14-29 (TWR-) - K14-3 (GND)

B - W-B*1

L - W-B*2

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

K14-30 (FR-) - K14-3 (GND)

L - W-B

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

K10-1 (MUTE) - K14-3 (GND)

BE - W-B

Mute signal

Ignition switch ACC

Audio system playing

2.0 V or higher

Audio system changing modes

Below 1 V

K10-2 (L-) - K14-3 (GND)

G - W-B

Sound signal (Left)

Audio system playing

A waveform synchronized with sound signals is output

K10-3 (L+) - K14-3 (GND)

B - W-B

Sound signal (Left)

Audio system playing

A waveform synchronized with sound signals is output

K10-4 (R-) - K14-3 (GND)

R - W-B

Sound signal (Right)

Audio system playing

A waveform synchronized with sound signals is output

K10-5 (R+) - K14-3 (GND)

W - W-B

Sound signal (Right)

Audio system playing

A waveform synchronized with sound signals is output

K10-6 (SLD) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

K10-7 (TX-)

W

AVC-LAN communication signal

-

-

K10-8 (TX+)

B

AVC-LAN communication signal

-

-

K10-11 (SPD) - K14-3 (GND)

G - W-B

Vehicle speed signal

Ignition switch ON

Wheel being rotated

Pulse generation

K10-12 (ACC) - K14-3 (GND)

P - W-B

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

K10-14 (II1-) - K14-3 (GND)

BR - W-B

Voice signal

Voice guidance sounding

A waveform synchronized with voice signals is output

K10-15 (II1+) - K14-3 (GND)

Y - W-B

Voice signal

Voice guidance sounding

A waveform synchronized with voice signals is output

K10-18 (SLD1) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

K10-24 (TMUT) - Body ground*1

R - Body ground

Mute signal

Ignition switch ACC

Audio system playing

2.0 V or higher

Emergency call mode

Below 1 V

  • *1: w/ Manual (SOS) Switch
  • *2: w/o Manual (SOS) Switch

DCM (TELEMATICS TRANSCEIVER) (w/ Manual (SOS) Switch)

Click here

COMBINATION METER ASSEMBLY

Click here

HEADUP DISPLAY (METER MIRROR SUB-ASSEMBLY) (w/ Headup Display System)

Click here

SKID CONTROL ECU (BRAKE ACTUATOR ASSEMBLY) (w/ ELECTRIC PARKING BRAKE SYSTEM)

Click here

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