Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

1. CHECK CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disconnect the D25 certification ECU (smart key ECU assembly) connector.


(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with connector disconnected.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

D25-1 (+B) - Body ground

G - Body ground

+B power supply

Always

11 to 14 V

D25-15 (E) - Body ground

B - Body ground

Ground

Always

Below 1 Ω

D25-17 (CUTB) - Body ground

L - Body ground

Dark current cut fuse pin input signal

Always

11 to 14 V

If the result is not as specified, there may be a malfunction in the wire harness.

(c) Reconnect the D25 certification ECU (smart key ECU assembly) connector.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

D25-3 (CLG1) - D25-15 (E)

G - B

Door electrical key oscillator (for driver side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin

No pulse generation

D25-3 (CLG1) - D25-15 (E)

G - B

Door electrical key oscillator (for driver side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • All doors locked by wireless lock function

Pulse generation

D25-4 (CG1B) - D25-15 (E)

R - B

Door electrical key oscillator (for driver side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin

No pulse generation

D25-4 (CG1B) - D25-15 (E)

R - B

Door electrical key oscillator (for driver side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • All doors locked by wireless lock function

Pulse generation

D25-5 (CLG2) - D25-15 (E)

P - B

Door electrical key oscillator (for front passenger side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin

No pulse generation

D25-5 (CLG2) - D25-15 (E)

P - B

Door electrical key oscillator (for front passenger side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • All doors locked by wireless lock function

Pulse generation

D25-6 (CG2B) - D25-15 (E)

V - B

Door electrical key oscillator (for front passenger side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin

No pulse generation

D25-6 (CG2B) - D25-15 (E)

V - B

Door electrical key oscillator (for front passenger side) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • All doors locked by wireless lock function

Pulse generation

D25-7 (CLG5) - D25-15 (E)

BR - B

Indoor electrical key oscillator (for front floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) not touched

No pulse generation

D25-7 (CLG5) - D25-15 (E)

BR - B

Indoor electrical key oscillator (for front floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) touched

Pulse generation

D25-8 (CG5B) - D25-15 (E)

R - B

Indoor electrical key oscillator (for front floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) not touched

No pulse generation

D25-8 (CG5B) - D25-15 (E)

R - B

Indoor electrical key oscillator (for front floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) touched

Pulse generation

D25-16 (IG) - Body ground

R - Body ground

IG power supply

Engine switch off

Below 1 V

D25-16 (IG) - Body ground

R - Body ground

IG power supply

Engine switch on (IG)

11 to 14 V

D25-18 (TSW1) - D25-15 (E)

R - B

Lock sensor (for driver side) detection signal

  • Engine switch off
  • All door closed
  • Lock sensor (for driver side) not touched

Pulse generation

D25-18 (TSW1) - D25-15 (E)

R - B

Lock sensor (for driver side) detection signal

  • Engine switch off
  • All door closed
  • Lock sensor (for driver side) touched

Below 2 V

D25-19 (TSW2) - D25-15 (E)

Y - B

Lock sensor (for front passenger side) detection signal

  • Engine switch off
  • All door closed
  • Lock sensor (for front passenger side) not touched

Pulse generation

D25-19 (TSW2) - D25-15 (E)

Y - B

Lock sensor (for front passenger side) detection signal

  • Engine switch off
  • All door closed
  • Lock sensor (for front passenger side) touched

Below 2 V

D25-20 (SEN1) - D25-15 (E)

LG - B

Touch sensor (for driver side) detection signal

  • Engine switch off
  • All door closed
  • Key not in detection area
  • Touch sensor (for driver side) not touched

Pulse generation

D25-20 (SEN1) - D25-15 (E)

LG - B

Touch sensor (for driver side) detection signal

  • Engine switch off
  • All door closed
  • Key not in detection area
  • Touch sensor (for driver side) touched

Below 2 V

D25-21 (SEN2) - D25-15 (E)

R - B

Touch sensor (for front passenger side) detection signal

  • Engine switch off
  • All door closed
  • Key not in detection area
  • Touch sensor (for front passenger side) not touched

Pulse generation

D25-21 (SEN2) - D25-15 (E)

R - B

Touch sensor (for front passenger side) detection signal

  • Engine switch off
  • All door closed
  • Key not in detection area
  • Touch sensor (for front passenger side) touched

Below 2 V

D25-22 (TSW5) - D25-15 (E)

G - B

Back door opener switch assembly (opener switch) signal

Back door opener switch assembly (opener switch) not pushed

Pulse generation

D25-22 (TSW5) - D25-15 (E)

G - B

Back door opener switch assembly (opener switch) signal

Back door opener switch assembly (opener switch) pushed

Below 1 V

D25-1 (TSW6) - D25-15 (E)

SB - B

Back door opener switch assembly (lock switch) signal

Back door opener switch assembly (lock switch) not pushed

Pulse generation

D25-1 (TSW6) - D25-15 (E)

SB - B

Back door opener switch assembly (lock switch) signal

Back door opener switch assembly (lock switch) pushed

Below 1 V

D25-24 (CLG6) - D25-15 (E)

R - B

Indoor electrical key oscillator (for center floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) not touched

No pulse generation

D25-24 (CLG6) - D25-15 (E)

R - B

Indoor electrical key oscillator (for center floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) touched

Pulse generation

D25-25 (CG6B) - D25-15 (E)

G - B

Indoor electrical key oscillator (for center floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) not touched

No pulse generation

D25-25 (CG6B) - D25-15 (E)

G - B

Indoor electrical key oscillator (for center floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) touched

Pulse generation

D25-26 (CLG7) - D25-15 (E)

L - B

Indoor electrical key oscillator (for rear floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) not touched

No pulse generation

D25-26 (CLG7) - D25-15 (E)

L - B

Indoor electrical key oscillator (for rear floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) touched

Pulse generation

D25-27 (CG7B) - D25-15 (E)

LG - B

Indoor electrical key oscillator (for rear floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) not touched

No pulse generation

D25-27 (CG7B) - D25-15 (E)

LG - B

Indoor electrical key oscillator (for rear floor) sensor signal

  • Engine switch off
  • All door closed
  • Key not in cabin
  • Door outside handle assembly (lock sensor) touched

Pulse generation

D25-32 (POS1) - D25-15 (E)

Y - B

Lock or unlock sensor (for driver side) output signal

Engine switch off

9 to 14 V

D25-32 (POS1) - D25-15 (E)

Y - B

Lock or unlock sensor (for driver side) output signal

Engine switch on (IG)

Below 2 V

D25-33 (POS2) - D25-15 (E)

L - B

Lock or unlock sensor (for front passenger side) output signal

Engine switch off

9 to 14 V

D25-33 (POS2) - D25-15 (E)

L - B

Lock or unlock sensor (for front passenger side) output signal

Engine switch on (IG)

Below 2 V

D26-5 (RC0) - D25-15 (E)

Y - B

Door control receiver power source

  • Engine switch off
  • Lock or unlock switch on key not pushed

Below 1 V

D26-5 (RC0) - D25-15 (E)

Y - B

Door control receiver power source

  • Engine switch off
  • Lock or unlock switch on key pushed

4.5 to 5.5 V

D26-15 (RDA) - D25-15 (E)

R - B

Door control receiver data input signal

  • Engine switch off
  • All doors closed
  • Transmitter switch not pressed

11 to 14 V pulse generation at regular intervals

D26-15 (RDA) - D25-15 (E)

R - B

Door control receiver data input signal

  • Engine switch off
  • All doors closed
  • Transmitter switch pressed

Pulse generation

D26-16 (RSSI) - D25-15 (E)

P - B

Door control receiver radio wave existence signal

  • Engine switch off
  • All doors locked
  • Lock or unlock switch on key not pushed

11 to 14 V

D26-16 (RSSI) - D25-15 (E)

P - B

Door control receiver radio wave existence signal

  • Engine switch off
  • All doors locked
  • Lock or unlock switch on key pushed

Below 2 V

D26-19 (CLG8) - D25-15 (E)

L - B

Outside electrical key oscillator (for rear side) sensor signal

  • Engine switch off
  • All doors closed
  • Back door opener switch assembly off

No pulse generation

D26-19 (CLG8) - D25-15 (E)

L - B

Outside electrical key oscillator (for rear side) sensor signal

  • Engine switch off
  • All doors closed
  • Back door opener switch assembly on

Pulse generation

D26-20 (CG8B) - D25-15 (E)

Y - B

Outside electrical key oscillator (for rear side) sensor signal

  • Engine switch off
  • All doors closed
  • Back door opener switch assembly off

No pulse generation

D26-20 (CG8B) - D25-15 (E)

Y - B

Outside electrical key oscillator (for rear side) sensor signal

  • Engine switch off
  • All doors closed
  • Back door opener switch assembly on

Pulse generation

If the result is not as specified, the certification ECU (smart key ECU assembly) may have a malfunction.

2. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

(a) Disconnect the 2C and 2F main body ECU (driver side junction block assembly) connectors.


(b) Measure the voltage and resistance according to the value(s) in the table below.

HINT:

Measure the values on the wire harness side with the connector disconnected.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

2C-24 (BECU) - Body ground

L - Body ground

Battery power supply

Always

11 to 14 V

2C-30 (ALTB) - Body ground

BR - Body ground

Battery power supply

Always

11 to 14 V

2F-16 (GND1) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

If the result is not as specified, there may be a malfunction in the wire harness.

(c) Reconnect the 2C and 2F main body ECU (driver side junction block assembly) connectors.

(d) Measure the voltage and check for pulses according to the value(s) in the table below.

Tester Connection

Wiring Color

Terminal Description

Condition

Specified Condition

D50-24 (DCTY) - Body ground

V - Body ground

Driver side door courtesy switch input

Driver door open

Below 1 V

D50-24 (DCTY) - Body ground

V - Body ground

Driver side door courtesy switch input

Driver door close

Pulse generation

D49-21 (PCTY) - Body ground

V - Body ground

Front passenger side door courtesy switch input

Front passenger side door open

Below 1 V

D49-21 (PCTY) - Body ground

V - Body ground

Front passenger side door courtesy switch input

Front passenger side door close

Pulse generation

2O-19 (LCTY) - Body ground

R - Body ground

Rear door LH courtesy light switch input

Rear door LH open

Below 1 V

2O-19 (LCTY) - Body ground

R - Body ground

Rear door LH courtesy light switch input

Rear door LH close

Pulse generation

D49-7 (RCTY) - Body ground

GR - Body ground

Rear door RH courtesy light switch input

Rear door RH open

Below 1 V

D49-7 (RCTY) - Body ground

GR - Body ground

Rear door RH courtesy light switch input

Rear door RH close

Pulse generation

D49-25 (BCTY) - Body ground*1

GR - Body ground

Back door courtesy light switch input

Back door open

Below 1 V

D49-25 (BCTY) - Body ground*1

GR - Body ground

Back door courtesy light switch input

Back door courtesy light switch on and back door closed

Pulse generation

D49-25 (BCTY) - Body ground*1

GR - Body ground

Back door courtesy light switch input

Back door open

Below 1 V

D49-25 (BCTY) - Body ground*1

GR - Body ground

Back door courtesy light switch input

Back door courtesy light switch off and back door closed

Pulse generation

D49-25 (BCTY) - Body ground*2

GR - Body ground

Back door courtesy light switch input

Back door open

Below 1 V

D49-25 (BCTY) - Body ground*2

GR - Body ground

Back door courtesy light switch input

Back door closed

Pulse generation

2K-2 (ACT+) - Body Ground

R - Body Ground

Door lock motor lock drive output (Driver side)

Power window regulator master switch assembly or driver door key cylinder off

Below 1 V

2K-2 (ACT+) - Body Ground

R - Body Ground

Door lock motor lock drive output (Driver side)

Power window regulator master switch assembly or driver door key cylinder lock

11 to 14 V

D50-5 (ACTD) - Body Ground

LG - Body Ground

Door lock motor unlock drive output (Driver side)

Power window regulator master switch assembly or driver door key cylinder off

Below 1 V

D50-5 (ACTD) - Body Ground

LG - Body Ground

Door lock motor unlock drive output (Driver side)

Power window regulator master switch assembly or driver door key cylinder unlock

11 to 14 V

2J-1 (ACT+) - Body Ground

R - Body Ground

Door lock motor lock drive output (Front passenger side)

Power window regulator master switch assembly or driver door key cylinder off

Below 1 V

2J-1 (ACT+) - Body Ground

R - Body Ground

Door lock motor lock drive output (Front passenger side)

Power window regulator master switch assembly or driver door key cylinder lock

11 to 14 V

2J-2 (ACT-) - Body Ground

SB - Body Ground

Door lock motor unlock drive output (Front passenger side)

Power window regulator master switch assembly off

Below 1 V

2J-2 (ACT-) - Body Ground

SB - Body Ground

Door lock motor unlock drive output (Front passenger side)

Power window regulator master switch assembly unlock

11 to 14 V

2F-11 (ACT+) - Body Ground

LG - Body Ground

Door lock motor lock drive output (Rear right door)

Power window regulator master switch assembly or driver door key cylinder off

Below 1 V

2F-11 (ACT+) - Body Ground

LG - Body Ground

Door lock motor lock drive output (Rear right door)

Power window regulator master switch assembly or driver door key cylinder lock

11 to 14 V

2F-30 (ACT-) - Body Ground

R- Body Ground

Door lock motor unlock drive output (Rear right door)

Power window regulator master switch assembly off

Below 1 V

2F-30 (ACT-) - Body Ground

R- Body Ground

Door lock motor unlock drive output (Rear right door)

Power window regulator master switch assembly unlock

11 to 14 V

2O-17 (ACT+) - Body Ground

GR - Body Ground

Door lock motor lock drive output (Rear left door)

Power window regulator master switch assembly or driver door key cylinder off

Below 1 V

2O-17 (ACT+) - Body Ground

GR - Body Ground

Door lock motor lock drive output (Rear left door)

Power window regulator master switch assembly or driver door key cylinder lock

11 to 14 V

2O-6 (ACT-) - Body Ground

R - Body Ground

Door lock motor unlock drive output (Rear left door)

Power window regulator master switch assembly off

Below 1 V

2O-6 (ACT-) - Body Ground

R - Body Ground

Door lock motor unlock drive output (Rear left door)

Power window regulator master switch assembly unlock

11 to 14 V

D50-9 (LSWD) - Body Ground

P - Body Ground

Driver side door position switch input

Driver door unlock

Below 1 V

D50-9 (LSWD) - Body Ground

P - Body Ground

Driver side door position switch input

Driver door lock

Pulse generation

D49-27 (LSWP) - Body ground

P - Body ground

Front passenger side door lock position switch input

Front passenger side door unlock

Below 1 V

D49-27 (LSWP) - Body ground

P - Body ground

Front passenger side door lock position switch input

Front passenger side door lock

Pulse generation

2O-5 (LSR) - Body ground

BR - Body ground

Rear door LH lock position switch input

Rear door LH unlock

Below 1 V

2O-5 (LSR) - Body ground

BR - Body ground

Rear door LH lock position switch input

Rear door LH lock

Pulse generation

2F-5 (LSR) - Body ground

Y - Body ground

Rear door RH lock position switch input

Rear door RH unlock

Below 1 V

2F-5 (LSR) - Body ground

Y - Body ground

Rear door RH lock position switch input

Rear door RH lock

Pulse generation

  • *1: w/o Back Door Closer System
  • *2: w/ Back Door Closer System

If the result is not as specified, the main body ECU (driver side junction block assembly) may have a malfunction.

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