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

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Exterior / Window / Glass / Power Window Control System(for Hv Model) / Terminals Of Ecu

TERMINALS OF ECU

CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the I16 multiplex network master switch 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 the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I16-11 (B) - I16-12 (GND)

LA-R - W-B

Power supply

Power switch off

11 to 14 V

I16-12 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the I16 multiplex network master switch 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

I16-15 (DOWN) - I16-12 (GND)

LA-V - W-B

Power window motor DOWN output

Power switch on (IG), driver door power window regulator switch not pushed or not pulled

11 to 14 V

I16-15 (DOWN) - I16-12 (GND)

LA-V - W-B

Power window motor DOWN output

Power switch on (IG), driver door power window moving, driver door power window regulator switch pushed halfway down (Manual operation)

Below 1 V

I16-20 (UP) - I16-12 (GND)

LA-L - W-B

Power window motor UP output

Power switch on (IG), driver door power window regulator switch not pushed or not pulled

11 to 14 V

I16-20 (UP) - I16-12 (GND)

LA-L - W-B

Power window motor UP output

Power switch on (IG), driver door power window moving, driver door power window regulator switch pulled halfway up (Manual operation)

Below 1 V

CHECK POWER WINDOW REGULATOR SWITCH ASSEMBLY

(a) Disconnect the I2 power window regulator switch assembly connector.

(b) Measure the resistance 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

I2-7 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the I2 power window regulator switch 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

I2-5 (UP) - I2-7 (GND)

LA-W - W-B

Power window motor UP output

Power switch on (IG), power window regulator switch assembly not pushed or not pulled

11 to 14 V

I2-5 (UP) - I2-7 (GND)

LA-W - W-B

Power window motor UP output

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly pulled halfway up (Manual operation)

Below 1 V

I2-5 (UP) - I2-7 (GND)

LA-W - W-B

Power window motor UP output

Power switch on (IG), front passenger door power window fully open

11 to 14 V

I2-5 (UP) - I2-7 (GND)

LA-W - W-B

Power window motor UP output

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation)

Below 1 V

I2-5 (UP) - I2-7 (GND)

LA-W - W-B

Power window motor UP output

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

I2-4 (DOWN) - I2-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), power window regulator switch assembly not pushed or not pulled

11 to 14 V

I2-4 (DOWN) - I2-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly pushed halfway down (Manual operation)

Below 1 V

I2-4 (DOWN) - I2-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

I2-4 (DOWN) - I2-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation)

Below 1 V

I2-4 (DOWN) - I2-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), front passenger door power window fully open

11 to 14 V

I2-8 (AUTO) - I2-7 (GND)

LA-G - W-B

Power window motor AUTO UP output

Power switch on (IG), front passenger door power window fully open

11 to 14 V

I2-8 (AUTO) - I2-7 (GND)

LA-G - W-B

Power window motor AUTO UP output

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation)

Below 1 V

I2-8 (AUTO) - I2-7 (GND)

LA-G - W-B

Power window motor AUTO UP output

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

I2-8 (AUTO) - I2-7 (GND)

LA-G - W-B

Power window motor AUTO DOWN output

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

I2-8 (AUTO) - I2-7 (GND)

LA-G - W-B

Power window motor AUTO DOWN output

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation)

Below 1 V

I2-8 (AUTO) - I2-7 (GND)

LA-G - W-B

Power window motor AUTO DOWN output

Power switch on (IG), front passenger door power window fully open

11 to 14 V

CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (FOR LH DOOR)

(a) Disconnect the J6 rear power window regulator switch assembly (for LH door) connector.

(b) Measure the resistance 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

J6-7 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the J6 rear power window regulator switch assembly (for LH door) connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J6-5 (UP) - J6-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear power window regulator switch assembly (for LH door) not pushed or not pulled

11 to 14 V

J6-5 (UP) - J6-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) pulled halfway up (Manual operation)

Below 1 V

J6-5 (UP) - J6-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear LH door power window fully open

11 to 14 V

J6-5 (UP) - J6-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation)

Below 1 V

J6-5 (UP) - J6-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

J6-4 (DOWN) - J6-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear power window regulator switch assembly (for LH door) not pushed or not pulled

11 to 14 V

J6-4 (DOWN) - J6-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) pushed halfway down (Manual operation)

Below 1 V

J6-4 (DOWN) - J6-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

J6-4 (DOWN) - J6-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation)

Below 1 V

J6-4 (DOWN) - J6-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear LH door power window fully open

11 to 14 V

J6-8 (AUTO) - J6-7 (GND)

LA-GR - W-B

Power window motor AUTO UP output

Power switch on (IG), rear LH door power window fully open

11 to 14 V

J6-8 (AUTO) - J6-7 (GND)

LA-GR - W-B

Power window motor AUTO UP output

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation)

Below 1 V

J6-8 (AUTO) - J6-7 (GND)

LA-GR - W-B

Power window motor AUTO UP output

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

J6-8 (AUTO) - J6-7 (GND)

LA-GR - W-B

Power window motor AUTO DOWN output

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

J6-8 (AUTO) - J6-7 (GND)

LA-GR - W-B

Power window motor AUTO DOWN output

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation)

Below 1 V

J6-8 (AUTO) - J6-7 (GND)

LA-GR - W-B

Power window motor AUTO DOWN output

Power switch on (IG), rear LH door power window fully open

11 to 14 V

CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (FOR RH DOOR)

(a) Disconnect the J5 rear power window regulator switch assembly (for RH door) connector.

(b) Measure the resistance 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

J5-7 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the J5 rear power window regulator switch assembly (for RH door) connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J5-5 (UP) - J5-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear power window regulator switch assembly (for RH door) not pushed or not pulled

11 to 14 V

J5-5 (UP) - J5-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) pulled halfway up (Manual operation)

Below 1 V

J5-5 (UP) - J5-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear RH door power window fully open

11 to 14 V

J5-5 (UP) - J5-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation)

Below 1 V

J5-5 (UP) - J5-7 (GND)

LA-B - W-B

Power window motor UP output

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

J5-4 (DOWN) - J5-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear power window regulator switch assembly (for RH door) not pushed or not pulled

11 to 14 V

J5-4 (DOWN) - J5-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) pushed halfway down (Manual operation)

Below 1 V

J5-4 (DOWN) - J5-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

J5-4 (DOWN) - J5-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation)

Below 1 V

J5-4 (DOWN) - J5-7 (GND)

LA-R - W-B

Power window motor DOWN output

Power switch on (IG), rear RH door power window fully open

11 to 14 V

J5-8 (AUTO) - J5-7 (GND)

LA-GR - W-B

Power window motor AUTO UP output

Power switch on (IG), rear RH door power window fully open

11 to 14 V

J5-8 (AUTO) - J5-7 (GND)

LA-GR - W-B

Power window motor AUTO UP output

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation)

Below 1 V

J5-8 (AUTO) - J5-7 (GND)

LA-GR - W-B

Power window motor AUTO UP output

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

J5-8 (AUTO) - J5-7 (GND)

LA-GR - W-B

Power window motor AUTO DOWN output

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

J5-8 (AUTO) - J5-7 (GND)

LA-GR - W-B

Power window motor AUTO DOWN output

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation)

Below 1 V

J5-8 (AUTO) - J5-7 (GND)

LA-GR - W-B

Power window motor AUTO DOWN output

Power switch on (IG), rear RH door power window fully open

11 to 14 V

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR DRIVER DOOR)

(a) Disconnect the I20 power window regulator motor assembly (for driver door) 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 the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I20-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

I20-2 (B) - Body ground

GR - Body ground

Power supply

Power switch off

11 to 14 V

(c) Reconnect the I20 power window regulator motor assembly (for driver door) connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I20-7 (DOWN) - I20-1 (GND)

LA-V - W-B

Power window motor DOWN input

Power switch on (IG), multiplex network master switch assembly (driver door power window regulator switch) not pushed or not pulled

11 to 14 V

I20-7 (DOWN) - I20-1 (GND)

LA-V - W-B

Power window motor DOWN input

Power switch on (IG), driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) pushed halfway down (Manual operation)

Below 1 V

I20-7 (DOWN) - I20-1 (GND)

LA-V - W-B

Power window motor DOWN input

Power switch on (IG), driver door power window fully closed

11 to 14 V

I20-7 (DOWN) - I20-1 (GND)

LA-V - W-B

Power window motor DOWN input

Power switch on (IG), driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) fully pushed down (Auto operation)

Below 1 V

I20-7 (DOWN) - I20-1 (GND)

LA-V - W-B

Power window motor DOWN input

Power switch on (IG), driver door power window fully open

11 to 14 V

I20-10 (UP) - I20-1 (GND)

LA-L - W-B

Power window motor UP input

Power switch on (IG), multiplex network master switch assembly (driver door power window regulator switch) not pushed or not pulled

11 to 14 V

I20-10 (UP) - I20-1 (GND)

LA-L - W-B

Power window motor UP input

Power switch on (IG), driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) pulled halfway up (Manual operation)

Below 1 V

I20-10 (UP) - I20-1 (GND)

LA-L - W-B

Power window motor UP input

Power switch on (IG), multiplex network master switch assembly (driver door power window regulator switch) fully open

11 to 14 V

I20-10 (UP) - I20-1 (GND)

LA-L - W-B

Power window motor UP input

Power switch on (IG), driver door power window moving, multiplex network master switch assembly (driver door power window regulator switch) fully pulled up (Auto operation)

Below 1 V

I20-10 (UP) - I20-1 (GND)

LA-L - W-B

Power window motor UP input

Power switch on (IG), driver door power window fully closed

11 to 14 V

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR FRONT PASSENGER DOOR)

(a) Disconnect the I4 power window regulator motor assembly (for front passenger door) 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 the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I4-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

I4-2 (B) - Body ground

GR - Body ground

Power supply

Power switch off

11 to 14 V

(c) Reconnect the I4 power window regulator motor assembly (for front passenger door) connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I4-4 (AUTO) - I4-1 (GND)

LA-G - W-B

Power window motor AUTO UP input

Power switch on (IG), front passenger door power window fully open

11 to 14 V

I4-4 (AUTO) - I4-1 (GND)

LA-G - W-B

Power window motor AUTO UP input

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation)

Below 1 V

I4-4 (AUTO) - I4-1 (GND)

LA-G - W-B

Power window motor AUTO UP input

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

I4-4 (AUTO) - I4-1 (GND)

LA-G - W-B

Power window motor AUTO DOWN input

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

I4-4 (AUTO) - I4-1 (GND)

LA-G - W-B

Power window motor AUTO DOWN input

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation)

Below 1 V

I4-4 (AUTO) - I4-1 (GND)

LA-G - W-B

Power window motor AUTO DOWN input

Power switch on (IG), front passenger door power window fully open

11 to 14 V

I4-7 (DOWN) - I4-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), power window regulator switch assembly not pushed or not pulled

11 to 14 V

I4-7 (DOWN) - I4-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly pushed halfway down (Manual operation)

Below 1 V

I4-7 (DOWN) - I4-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

I4-7 (DOWN) - I4-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pushed down (Auto operation)

Below 1 V

I4-7 (DOWN) - I4-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), front passenger door power window fully open

11 to 14 V

I4-10 (UP) - I4-1 (GND)

LA-W - W-B

Power window motor UP input

Power switch on (IG), power window regulator switch assembly not pushed or not pulled

11 to 14 V

I4-10 (UP) - I4-1 (GND)

LA-W - W-B

Power window motor UP input

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly pulled halfway up (Manual operation)

Below 1 V

I4-10 (UP) - I4-1 (GND)

LA-W - W-B

Power window motor UP input

Power switch on (IG), front passenger door power window fully open

11 to 14 V

I4-10 (UP) - I4-1 (GND)

LA-W - W-B

Power window motor UP input

Power switch on (IG), front passenger door power window moving, power window regulator switch assembly fully pulled up (Auto operation)

Below 1 V

I4-10 (UP) - I4-1 (GND)

LA-W - W-B

Power window motor UP input

Power switch on (IG), front passenger door power window fully closed

11 to 14 V

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR REAR LH DOOR)

(a) Disconnect the J10 power window regulator motor assembly (for rear LH door) 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 the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J10-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

J10-2 (B) - Body ground

B - Body ground

Power supply

Power switch off

11 to 14 V

(c) Reconnect the J10 power window regulator motor assembly (for rear LH door) connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J10-4 (AUTO) - J10-1 (GND)

LA-GR - W-B

Power window motor AUTO UP input

Power switch on (IG), rear LH door power window fully open

11 to 14 V

J10-4 (AUTO) - J10-1 (GND)

LA-GR - W-B

Power window motor AUTO UP input

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation)

Below 1 V

J10-4 (AUTO) - J10-1 (GND)

LA-GR - W-B

Power window motor AUTO UP input

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

J10-4 (AUTO) - J10-1 (GND)

LA-GR - W-B

Power window motor AUTO DOWN input

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

J10-4 (AUTO) - J10-1 (GND)

LA-GR - W-B

Power window motor AUTO DOWN input

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation)

Below 1 V

J10-4 (AUTO) - J10-1 (GND)

LA-GR - W-B

Power window motor AUTO DOWN input

Power switch on (IG), rear LH door power window fully open

11 to 14 V

J10-7 (DOWN) - J10-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear power window regulator switch assembly (for LH door) not pushed or not pulled

11 to 14 V

J10-7 (DOWN) - J10-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) pushed halfway down (Manual operation)

Below 1 V

J10-7 (DOWN) - J10-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

J10-7 (DOWN) - J10-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pushed down (Auto operation)

Below 1 V

J10-7 (DOWN) - J10-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear LH door power window fully open

11 to 14 V

J10-10 (UP) - J10-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear power window regulator switch assembly (for LH door) not pushed or not pulled

11 to 14 V

J10-10 (UP) - J10-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) pulled halfway up (Manual operation)

Below 1 V

J10-10 (UP) - J10-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear LH door power window fully open

11 to 14 V

J10-10 (UP) - J10-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear LH door power window moving, rear power window regulator switch assembly (for LH door) fully pulled up (Auto operation)

Below 1 V

J10-10 (UP) - J10-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear LH door power window fully closed

11 to 14 V

CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (FOR REAR RH DOOR)

(a) Disconnect the J9 power window regulator motor assembly (for rear RH door) 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 the connector disconnected.

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J9-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

J9-2 (B) - Body ground

B - Body ground

Power supply

Power switch off

11 to 14 V

(c) Reconnect the J9 power window regulator motor assembly (for rear RH door) connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J9-4 (AUTO) - J9-1 (GND)

LA-GR - W-B

Power window motor AUTO UP input

Power switch on (IG), rear RH door power window fully open

11 to 14 V

J9-4 (AUTO) - J9-1 (GND)

LA-GR - W-B

Power window motor AUTO UP input

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation)

Below 1 V

J9-4 (AUTO) - J9-1 (GND)

LA-GR - W-B

Power window motor AUTO UP input

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

J9-4 (AUTO) - J9-1 (GND)

LA-GR - W-B

Power window motor AUTO DOWN input

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

J9-4 (AUTO) - J9-1 (GND)

LA-GR - W-B

Power window motor AUTO DOWN input

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation)

Below 1 V

J9-4 (AUTO) - J9-1 (GND)

LA-GR - W-B

Power window motor AUTO DOWN input

Power switch on (IG), rear RH door power window fully open

11 to 14 V

J9-7 (DOWN) - J9-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear power window regulator switch assembly (for RH door) not pushed or not pulled

11 to 14 V

J9-7 (DOWN) - J9-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) pushed halfway down (Manual operation)

Below 1 V

J9-7 (DOWN) - J9-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

J9-7 (DOWN) - J9-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pushed down (Auto operation)

Below 1 V

J9-7 (DOWN) - J9-1 (GND)

LA-R - W-B

Power window motor DOWN input

Power switch on (IG), rear RH door power window fully open

11 to 14 V

J9-10 (UP) - J9-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear power window regulator switch assembly (for RH door) not pushed or not pulled

11 to 14 V

J9-10 (UP) - J9-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) pulled halfway up (Manual operation)

Below 1 V

J9-10 (UP) - J9-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear RH door power window fully open

11 to 14 V

J9-10 (UP) - J9-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear RH door power window moving, rear power window regulator switch assembly (for RH door) fully pulled up (Auto operation)

Below 1 V

J9-10 (UP) - J9-1 (GND)

LA-B - W-B

Power window motor UP input

Power switch on (IG), rear RH door power window fully closed

11 to 14 V

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

(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

Terminal Description

Condition

Specified Condition

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

Terminal Description

Condition

Specified Condition

MB-11 (GND1) - Body ground

-

Ground

Always

Below 1 Ω

MB-31 (BECU) - Body ground

-

Auxiliary battery power supply

Power switch off

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Power switch on (ACC)

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Power switch off

Below 1 V

MB-32 (IG) - Body ground

-

IG power supply

Power switch on (IG)

11 to 14 V

MB-32 (IG) - Body ground

-

IG power supply

Power switch off or on (ACC)

Below 1 V

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

Click here

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G33-1 (FLCY) - Body ground

W - Body ground

Front door courtesy light switch (for LH) input

Front door LH open

Below 1 V

G33-1 (FLCY) - Body ground

W - Body ground

Front door courtesy light switch (for LH) input

Front door LH closed

11 to 14 V

G33-6 (FRCY) - Body ground

BE - Body ground

Front door courtesy light switch (for RH) input

Front door RH open

Below 1 V

G33-6 (FRCY) - Body ground

BE - Body ground

Front door courtesy light switch (for RH) input

Front door RH closed

11 to 14 V

G34-18 (L2) - Body ground

LG - Body ground

Driver door key-linked lock input

Driver door key cylinder turned to lock

Below 1 V

G34-18 (L2) - Body ground

LG - Body ground

Driver door key-linked lock input

Driver door key cylinder not turned

11 to 14 V

G34-17 (UL3) - Body ground

BE - Body ground

Driver door key-linked unlock input

Driver door key cylinder turned to unlock

Below 1 V

G34-17 (UL3) - Body ground

BE - Body ground

Driver door key-linked unlock input

Driver door key cylinder not turned

11 to 14 V
    System Diagram

    Power Window Master Switch

    See More:

    Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Occupant Classification System(for Gasoline Model): Rear Occupant Classification Sensor LH Circuit Malfunction (B1782)
    DESCRIPTION The rear occupant classification sensor LH circuit consists of the occupant detection ECU and rear occupant classification sensor LH. DTC B1782 is stored when a malfunction is detected in the rear occupant classification sensor LH circuit. DTC No. Detection Item DTC Detection Condition T ...

    Toyota Avalon (XX50) 2019-2022 Owners Manual

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

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