Toyota CH-R Service Manual: Terminals Of Ecu

TERMINALS OF ECU

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

F47-4 (MACC) - F48-7 (GND1)

B - LA

Microphone power supply

Ignition switch off

Below 1 V

Ignition switch ACC

4 to 6 V

F47-5 (MIN+) - F48-7 (GND1)

W - LA

Microphone voice signal

"Bluetooth" hands-free voice signal received

A waveform synchronized with sound signals is output

F47-6 (SNS2) - F48-7 (GND1)

V - LA

Microphone connection detection signal

Always

Below 1 V

F47-17 (SPD) - F48-7 (GND1)

V - LA

Vehicle speed signal

Ignition switch ON

Wheel being rotated

Pulse generation

F47-18 (SGND) - Body ground

Shield - Body ground

Shield ground

Always

Below 1 V

F47-19 (MIN-) - F48-7 (GND1)

R - LA

Microphone voice signal

"Bluetooth" hands-free voice signal received

A waveform synchronized with sound signals is output

F47-21 (SW1) - F47-23 (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

F47-22 (SW2) - F47-23 (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

On hook switch pushed

0.86 to 1.03 V

Off hook switch pushed

1.51 to 1.79 V

F47-23 (SWG) - Body ground

W-B - Body ground

Steering pad switch signal

Always

Below 1 V

F48-1 (FR+) - F48-7 (GND1)

P - LA

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

F48-2 (FL+) - F48-7 (GND1)

W - LA

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

F48-3 (ACC1) - F48-7 (GND1)

GR - LA

Power source (ACC)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

F48-4 (+B1) - F48-7 (GND1)

LA-SB - LA

Power source (+B)

Always

11 to 14 V

F48-5 (FR-) - F48-7 (GND1)

BR - LA

Sound signal (Front Right)

Audio system playing

A waveform synchronized with sound signals is output

F48-6 (FL-) - F48-7 (GND1)

B - LA

Sound signal (Front Left)

Audio system playing

A waveform synchronized with sound signals is output

F48-7 (GND1) - Body ground

LA - Body ground

Ground

Always

Below 1 V

F48-10 (ILL+) - Body ground

G - Body ground

Illumination signal

Light control switch off

Below 1 V

Light control switch in tail or head position

11 to 14 V

F49-1 (RR+) - F48-7 (GND1)

R - LA

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

F49-2 (RL+) - F48-7 (GND1)

B - LA

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

F49-3 (RR-) - F48-7 (GND1)

W - LA

Sound signal (Rear Right)

Audio system playing

A waveform synchronized with sound signals is output

F49-6 (RL-) - F48-7 (GND1)

Y - LA

Sound signal (Rear Left)

Audio system playing

A waveform synchronized with sound signals is output

RA-5 (ANT+) - F48-7 (GND1)

- - LA

Power source of antenna

Ignition switch ACC

Radio switch on and AM or FM selected

11 to 14 V

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