Toyota Venza manuals

Toyota Venza: Terminals Of Ecu

TERMINALS OF ECU

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


(a) Disconnect the 2A 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.

Standard Voltage

Symbols

Wiring Color

Terminal Description

Condition

Specified Condition

2A-1 - Body ground

B - Body ground

Battery power supply

Always

11 to 14 V

Standard Resistance

Symbols

Wiring Color

Terminal Description

Condition

Specified Condition

2F-16 - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

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

(c) Reconnect the 2A 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.

Standard Voltage

Symbols

Wiring Color

Terminal Description

Condition

Specified Condition

2F-5 (LSR) - Body ground

Y - Body ground

Rear door unlock detection switch LH or RH input

Rear door LH and RH locked

Pulse generation

Rear door LH or RH unlocked

Below 1 V

2K-9 (ILE)*1 - Body ground

R - Body ground

Transponder key amplifier illumination drive output

Illumination on

Below 1 V

Illumination off

11 to 14 V

2O-5 (LSR) - Body ground

BR - Body ground

Rear door unlock detection switch LH or RH input

Rear door LH and RH locked

Pulse generation

Rear door LH or RH unlocked

Below 1 V

2O-19 (LCTY) - Body ground

R - Body ground

Rear door courtesy light switch LH input

Rear door LH open

Below 1 V

Rear door LH closed

Pulse generation

2R-5 (ILE) - Body ground

P - Body ground

Interior lights drive output

Interior lights on

Below 1 V

Interior lights off

11 to 14 V

2R-7 (DOMR) - Body ground

W - Body ground

DOME CUT relay drive output

DOME CUT relay off

Below 1 V

DOME CUT relay on

11 to 14 V

D49-7 (RCTY) - Body ground

GR - Body ground

Rear door courtesy light switch RH input

Rear door RH open

Below 1 V

Rear door RH closed

Pulse generation

D49-21 (PCTY) - Body ground

V - Body ground

Front passenger side door courtesy light switch input

Front passenger side door open

Below 1 V

Front passenger side door closed

Pulse generation

D49-25 (BCTY) - Body ground

GR - Body ground

Back door courtesy switch input

Back door open

Below 1 V

Back door closed

Pulse generation

D49-27 (LSWP) - Body ground

P - Body ground

Front passenger side door unlock detection switch input

Front passenger side door locked

Pulse generation

Front passenger side door unlocked

Below 1 V

D50-9 (LSWD) - Body ground

P - Body ground

Driver side door unlock detection switch input

Driver side door locked

Pulse generation

Driver side door unlocked

Below 1 V

D50-24 (DCTY) - Body ground

V - Body ground

Driver side door courtesy light switch input

Driver side door open

Below 1 V

Driver side door closed

Pulse generation

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

  • *1: w/o Smart Key System
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