Last Modified: 08-21-2023 6.11:8.1.0 Doc ID: RM100000001BQOM
Model Year Start: 2019 Model: Avalon HV Prod Date Range: [04/2018 - 08/2019]
Title: DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM(for HV Model): TERMINALS OF ECU; 2019 MY Avalon HV [04/2018 - 08/2019]

TERMINALS OF ECU

CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.

Click here 2019 - 2021 MY Avalon Avalon HV [04/2018 - 08/2021]; POWER DISTRIBUTION: MAIN BODY ECU: REMOVAL

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

HINT:

Measure the values on the wire harness side with the connectors connected.

Terminal No. (Symbol)

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

G32-19 (GND2) - Body ground

W-B - Body ground

-

Ground

Always

Below 1 Ω

-

(c) Reconnect the instrument panel junction block assembly connectors.

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

Terminal No. (Symbol)

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

MB-11 (GND1) - Body ground

-

-

Ground

Always

Below 1 Ω

-

MB-30 (ACC) - Body ground

-

Input

ACC power supply

Power switch on (ACC)

11 to 14 V

ACC SW

Power switch off

Below 1 V

MB-31 (BECU) - Body ground

-

Input

Auxiliary battery power supply

Power switch off

11 to 14 V

-

MB-32 (IG) - Body ground

-

Input

IG power supply

Power switch on (IG)

11 to 14 V

IG SW

Power switch off

Below 1 V

(e) Install the main body ECU (multiplex network body ECU) to the instrument panel junction block assembly.

Click here 2019 - 2022 MY Avalon Avalon HV [04/2018 -        ]; POWER DISTRIBUTION: MAIN BODY ECU: INSTALLATION

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

Terminal No. (Symbol)

Wiring Color

Input/Output

Terminal Description

Condition

Specified Condition

Related Data List Item

G33-1 (FLCY) - Body ground

W- Body ground

Input

Front door courtesy light switch (for LH) input

Front door LH open → closed

Below 1 V → 11 to 14 V

FL Door Courtesy SW

G33-6 (FRCY) - Body ground

BE - Body ground

Input

Front door courtesy light switch (for RH) input

Front door RH open → closed

Below 1 V → 11 to 14 V

FR Door Courtesy SW

4H-24 (LCTY) - Body ground

G - Body ground

Input

Rear door courtesy light switch (for LH) input

Rear door LH open → closed

Below 1 V → 11 to 14 V

RL Door Courtesy SW

4A-31 (RCTY) - Body ground

V - Body ground

Input

Rear door courtesy light switch (for RH) input

Rear door RH open → closed

Below 1 V → 11 to 14 V

RR Door Courtesy SW

4D-13 (LSFL) - Body ground

W - Body ground

Input

Front door LH unlock detection switch input

Front door LH unlocked → locked

Below 1 V → 11 to 14 V

FL Door Lock Pos SW

4D-12 (LSFR) - Body ground

GR - Body ground

Input

Front door RH unlock detection switch input

Front door RH unlocked → locked

Below 1 V → 11 to 14 V

FR Door Lock Pos SW

4D-14 (LSWL) - Body ground

GR - Body ground

Input

Rear door LH unlock detection switch input

Rear door LH unlocked → locked

Below 1 V → 11 to 14 V

RL-Door Lock Pos SW

G32-20 (LSWR) - Body ground

L - Body ground

Input

Rear door RH unlock detection switch input

Rear door RH unlocked → locked

Below 1 V → 11 to 14 V

RR-Door Lock Pos SW

4H-8 (ACT-) - Body ground

LA-R - Body ground

Output

Door lock motor unlock drive output

Door control switch or driver door key cylinder off → on (unlock)

Below 1 V → 11 to 14 V → Below 1 V

-

4H-9 (ACT-) - Body ground

R - Body ground

Output

Door lock motor unlock drive output

Door control switch or driver door key cylinder off → on (unlock)

Below 1 V → 11 to 14 V → Below 1 V

-

4H-6 (ACT+) - Body ground

LA-B - Body ground

Output

Door lock motor lock drive output

Door control switch or driver door key cylinder off → on (lock)

Below 1 V → 11 to 14 V → Below 1 V

-

4H-18 (ACT+) - Body ground

LA-B - Body ground

Output

Door lock motor lock drive output

Door control switch or driver door key cylinder off → on (lock)

Below 1 V → 11 to 14 V → Below 1 V

-

4D-4 (ACTD) - Body ground

LA-L - Body ground

Output

Door lock motor unlock drive output

Door control switch or driver door key cylinder off → on (unlock)

Below 1 V → 11 to 14 V → Below 1 V

-

4D-16 (L1) - Body ground

LG - Body ground

Output

Door control switch assembly input

Door control switch assembly off → on (lock)

Pulse generation → Below 1 V

Door Lock SW-Lock

4A-39 (UL1) - Body ground

GR - Body ground

Input

Door control switch assembly input

Door control switch assembly off → on (unlock)

Pulse generation → Below 1 V

Door Lock SW-Unlock

G34-17 (UL3) - Body ground

BE - Body ground

Input

Driver door key-linked unlock input

Driver door key cylinder in neutral position → on (unlock)

11 to 14 V → Below 1 V

D Door Key SW-UL

G34-18 (L2) - Body ground

LG - Body ground

Input

Driver door key-linked lock input

Driver door key cylinder in neutral position → on (lock)

11 to 14 V → Below 1 V

Door Key SW-Lock

4A-7 (GSW) - Body ground

B - Body ground

Input

Airbag sensor signal (collision detection signal)

Power switch on (IG) with airbag ECU assembly connector disconnected

4.3 to 5.5 V

-

CHECK AIRBAG ECU ASSEMBLY

Click here 2019 - 2022 MY Avalon HV [04/2018 -        ]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for HV Model): TERMINALS OF ECU