Toyota Tacoma (2015-2018) Service Manual: Terminals Of Ecu

*1

Main Body ECU (Multiplex Network Body ECU)

-

-

MB-11(GND1) - Body ground

-

Ground

Always

Below 1 Ω

MB-31 (BECU) - Body ground

-

Battery power supply

Always

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Ignition switch ACC

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Ignition switch off

Below 1 V

MB-32 (IG) - Body ground

-

IG power supply

Ignition switch ON

11 to 14 V

MB-32 (IG) - Body ground

-

IG power supply

Ignition switch off

Below 1 V

MB-14 (TRLY) - Body ground

-

Supply battery to taillight relay drive

Always

11 to 14 V

M6-27 (FRCY) - Body ground

LG - Body ground

Front door courtesy light switch RH input

Front door RH open

Below 1 V

M6-27 (FRCY) - Body ground

LG - Body ground

Front door courtesy light switch RH input

Front door RH open

11 to 14 V

M6-6 (FLCY) - Body ground

Y - Body ground

Front door courtesy light switch LH input

Front door LH open

Below 1 V

M6-6 (FLCY) - Body ground

Y - Body ground

Front door courtesy light switch LH input

Front door LH closed

11 to 14 V

1H-36 (LCTY) - Body ground

P - Body ground

Rear door courtesy light switch LH input*1

Upper access panel lock assembly LH input*2

Lower access panel lock assembly LH input*2

Rear door LH open

Below 1 V

1H-36 (LCTY) - Body ground

P - Body ground

Rear door courtesy light switch LH input*1

Upper access panel lock assembly LH input*2

Lower access panel lock assembly LH input*2

Rear door LH closed

Pulse generation

1D-30 (RCTY) - Body ground

V - Body ground

Rear door courtesy light switch RH input*1

Upper access panel lock assembly RH input*2

Lower access panel lock assembly RH input*2

Rear door RH open

Below 1 V

1D-30 (RCTY) - Body ground

V - Body ground

Rear door courtesy light switch RH input*1

Upper access panel lock assembly RH input*2

Lower access panel lock assembly RH input*2

Rear door RH closed

Pulse generation

1D-11 (LSFL) - Body ground

P - Body ground

Front door LH unlock detection switch input

Front door LH unlocked

Below 1 V

1D-11 (LSFL) - Body ground

P - Body ground

Front door LH unlock detection switch input

Ignition switch off, all doors closed and front door LH locked

Pulse generation

1D-24 (LSFR) - Body ground

GR - Body ground

Front door RH unlock detection switch input

Front door RH unlocked

Below 1 V

1D-24 (LSFR) - Body ground

GR - Body ground

Front door RH unlock detection switch input

Ignition switch off, all doors closed and front door RH locked

Pulse generation

1A-41 (LSR) - Body ground*1

Y - Body ground

Rear door RH unlock detection switch input

Rear door RH or LH unlocked

Below 1 V

1A-41 (LSR) - Body ground*1

Y - Body ground

Rear door RH unlock detection switch input

Ignition switch off, all doors closed and rear door RH and LH locked

Pulse generation

1H-27 (LSR) - Body ground*1

L - Body ground

Rear door LH unlock detection switch input

Rear door LH or RH unlocked

Below 1 V

1H-27 (LSR) - Body ground*1

L - Body ground

Rear door LH unlock detection switch input

Ignition switch off, all doors closed and rear door LH and RH locked

Pulse generation

1D-31 (KSW) - Body ground*3

G - Body ground

Key unlock warning switch input

Key in ignition key cylinder

Below 1 V

No key in ignition key cylinder

11 to 14 V or Pulse generation

M6-15 (IND) - Body ground*3

V - Body ground

Security indicator illumination

Security indicator light illuminates

(It illuminates only for 57 seconds in alarm sounding state.)

3 to 10 V

1F-31 (SH) - Body ground

L - Body ground

Security horn drive

Security horn sounding

(Theft deterrent system is in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

1F-26 (HORN) - Body ground

L - Body ground

Vehicle horn drive

Vehicle horns sounding

(Theft deterrent system is in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

1F-28 (HRLY) - Body ground

W - Body ground

Headlight relay driver output

Headlight blinks

(Theft deterrent system is in alarm sounding state)

Pulse generation

(Below 1 V ← → 11 to 14 V)

1D-29 (ILE) - Body ground

BE - Body ground

Interior light driver output

Interior light illuminates

(Theft deterrent system is in alarm sounding state)

11 to 14 V

M6-2 (UL3) - Body ground

G - Body ground

Driver door key-linked unlock input

Driver door key cylinder turned to neutral position → on (unlock)

Pulse generation → Below 1 V

M6-29 (L2) - Body ground

SB - Body ground

Driver door key-linked lock input

Driver door key cylinder turned to neutral position → on (lock)

Pulse generation → Below 1 V