Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

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

(a) Disconnect the 2C, 2F and 2K 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

2K-17 (GND2) - Body ground

W - 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, 2F and 2K main body ECU (driver side junction block assembly) connectors.

(d) Measure the voltage 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 side door open

Below 1 V

D50-24 (DCTY) - Body ground

V - Body ground

Driver side door courtesy switch input

Driver side 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

GR - Body ground

Back door courtesy light switch input

Back door open

Below 1 V

D49-25 (BCTY) - Body ground

GR - Body ground

Back door courtesy light switch input

Back door closed

Pulse generation

2J-3 (L1) - Body ground

G - Body ground

Front passenger side door control switch input

Front passenger side door control switch lock side pressed

Below 1 V

2J-3 (L1) - Body ground

G - Body ground

Front passenger side door control switch input

Front passenger side door control switch off

11 to 14 V

2J-4 (UL1) - Body ground

L - Body ground

Front passenger side door control switch input

Front passenger side door control switch unlock side pressed

Below 1 V

2J-4 (UL1) - Body ground

L - Body ground

Front passenger side door control switch input

Front passenger side door control switch off

11 to 14 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 side 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 side 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 side 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 side 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 side 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 side 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 side 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 side 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 side 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 side 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 side door unlock

Below 1 V

D50-9 (LSWD) - Body Ground

P - Body Ground

Driver side door position switch input

Driver side 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

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

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