Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Terminals Of Ecu

TERMINALS OF ECU

CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR ASSEMBLY)

(a) Disconnect the O3 sliding roof ECU (sliding roof drive gear assembly) connector.

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

HINT:

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

O3-1 (B) - O3-2 (E)

B - W-B

Auxiliary battery power supply

Power switch off

11 to 14 V

O3-6 (IG) - O3-2 (E)

LA-GR - W-B

IG power supply

Power switch off

Below 1 V

O3-6 (IG) - O3-2 (E)

LA-GR - W-B

IG power supply

Power switch on (IG)

11 to 14 V

O3-2 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the O3 sliding roof ECU (sliding roof drive gear assembly) connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

O3-10 (OPN) - O3-2 (E)

W - W-B

Sliding roof motor open

Power switch on (IG), OPEN switch on

Below 1 V

O3-10 (OPN) - O3-2 (E)

W - W-B

Sliding roof motor open

Power switch on (IG), OPEN switch off

11 to 14 V

O3-8 (CLS) - O3-2 (E)

SB - W-B

Sliding roof motor close

Power switch on (IG), CLOSE switch on

Below 1 V

O3-8 (CLS) - O3-2 (E)

SB - W-B

Sliding roof motor close

Power switch on (IG), CLOSE switch off

11 to 14 V

O3-5 (UP) - O3-2 (E)

R - W-B

Sliding roof motor up

Power switch on (IG), UP switch on

Below 1 V

O3-5 (UP) - O3-2 (E)

R - W-B

Sliding roof motor up

Power switch on (IG), UP switch off

11 to 14 V

O3-9 (DWN) - O3-2 (E)

LG - W-B

Sliding roof motor down

Power switch on (IG), DOWN switch on

Below 1 V

O3-9 (DWN) - O3-2 (E)

LG - W-B

Sliding roof motor down

Power switch on (IG), DOWN switch off

11 to 14 V

CHECK MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

Click here

    System Diagram

    Vehicle Proximity Notification System

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    Toyota Avalon (XX50) 2019-2022 Owners Manual

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual

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