Toyota CH-R Service Manual: Terminals Of Ecu

*A

Main Body ECU (Multiplex Network Body ECU) with 2 Connectors

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-

*1

Main Body ECU (Multiplex Network Body ECU)

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-

*a

2 Connectors

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-

*A

Main Body ECU (Multiplex Network Body ECU) with 1 Connector

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-

*1

Main Body ECU (Multiplex Network Body ECU)

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-

*a

1 Connector

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-

MB-31 (BECU) - Body ground

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Battery power supply

Always

11 to 14 V

MB-32 (IG) - Body ground

-

Ignition power supply (IG signal)

Ignition switch off

Below 1 V

Ignition switch ON

11 to 14 V

MB-30 (ACC) - Body ground

-

Ignition power supply (ACC signal)

Ignition switch off

Below 1 V

Ignition switch ACC

11 to 14 V

MB-11 (GND1) - Body ground

-

Ground

Always

Below 1 Ω

F15-6 (FLCY) - Body ground

R - Body ground

Front door courtesy light switch assembly LH input

Front door LH closed

10 kΩ or higher

Front door LH open

Below 1 Ω

F15-27 (FRCY) - Body ground

BR - Body ground

Front door courtesy light switch assembly RH input

Front door RH closed

10 kΩ or higher

Front door RH open

Below 1 Ω

MB-13 (LCTY) - Body ground

-

Rear door courtesy light switch assembly LH input

Rear door LH closed

10 kΩ or higher

Rear door LH open

Below 1 Ω

MB-2 (RCTY) - Body ground

-

Rear door courtesy light switch assembly RH input

Rear door RH closed

10 kΩ or higher

Rear door RH open

Below 1 Ω

MB-4 (BCTY) - Body ground

-

Back door courtesy light switch input

Back door closed

10 kΩ or higher

Back door open

Below 1 Ω

F15-11 (HCTY) - Body ground

GR - Body ground

Hood courtesy switch input

Hood open

10 kΩ or higher

Hood closed

Below 1 Ω

MB-3 (KSW) - Body ground*1

-

Unlock warning switch signal

No key in ignition key cylinder

10 kΩ or higher

Key in ignition key cylinder

Below 1 Ω

3D-13 (LSFL) - Body ground

B - Body ground

Front door LH unlock detection switch input

Front door LH unlocked

Below 1 V

Front door LH locked

Pulse generation

3D-12 (LSFR) - Body ground

GR - Body ground

Front door RH unlock detection switch input

Front door RH unlocked

Below 1 V

Front door RH locked

Pulse generation

F15-29 (L2) - Body ground

G - Body ground

Driver door key-linked lock input

Driver door key cylinder turned to lock position

Below 1 V

Driver door key cylinder off

Pulse generation

F15-2 (UL3) - Body ground

L - Body ground

Driver door key-linked unlock input

Driver door key cylinder turned to unlock position

Below 1 V

Driver door key cylinder off

Pulse generation

3D-14 (LSR) - Body ground

LG - Body ground

Rear door LH and Rear door RH unlock detection switch input

Rear door LH or Rear door RH unlocked

Below 1 V

Rear door LH and Rear door RH locked

Pulse generation

3A-20 (SH) - Body ground

LG - Body ground

Security horn assembly drive

Security horn assembly sounding

(Theft deterrent system in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

3F-27 (HORN) - Body ground

SB - Body ground

Vehicle horns drive

Vehicle horns sounding

(Theft deterrent system in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)