I143-1 (+B) - I143-20 (E)

SB - W-B

Power source (+B)

Engine switch off

11 to 14 V

I143-3 (SIG-) - I143-20 (E)

W - W-B

Ground

Always

Below 1 V

I143-4 (IND1) - I143-20 (E)

G - W-B

Manual (SOS) switch red indicator illumination signal

For 2 seconds after engine switch turned on (IG)

1 to 8.5 V

Engine switch off

Below 1 V

I143-5 (MCVD) - I143-20 (E)

R - W-B

Telephone microphone assembly power supply

Engine switch on (ACC)

4 to 6 V

Engine switch off

Below 1 V

I143-6 (MCI+) - I143-20 (E)

B - W-B

Receive microphone voice signal

Voice being input to telephone microphone assembly

A waveform synchronized with microphone voice signal is input

I143-7 (MCI-) - I143-20 (E)

W - W-B

Receive microphone voice signal

Always

Below 1 V

I143-13 (GSW) - I143-20 (E)

W - W-B

Collision detection signal

Engine switch on (IG)

Pulse generation (Refer to waveform 1)

I143-19 (IG2) - I143-20 (E)

BR - W-B*1

L - W-B*2

Power source (IG)

Engine switch on (IG)

11 to 14 V

Engine switch off

Below 1 V

I143-20 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

I143-21 (SIG1) - I143-3 (SIG-)

L - W

Manual (SOS) switch button condition signal

Manual (SOS) switch not pressed

1.3 to 1.9 V

Manual (SOS) switch pressed

0.5 to 0.8 V

I143-22 (IND2) - I143-20 (E)

GR - W-B

Manual (SOS) switch green indicator illumination signal

For 2 seconds after engine switch turned on (IG)

1 to 8.5 V

Engine switch off

Below 1 V

I143-23 (SGND) - I143-20 (E)

Shielded - W-B

Shield ground

Always

Below 1 Ω

I143-25 (CANP)

L

CAN communication signal

-

-

I143-26 (CANN)

W

CAN communication signal

-

-

Tester connection

I143-13 (GSW) - I143-20 (E)

Tool setting

5.0 V/DIV., 20 ms/DIV.

Vehicle condition

Engine switch on (IG)