Last Modified: 04-05-2023 6.11:8.1.0 Doc ID: RM100000000VK5P
Model Year Start: 2016 Model: Sienna Prod Date Range: [12/2015 -           ]
Title: WINDOW / GLASS: POWER WINDOW CONTROL SYSTEM: TERMINALS OF ECU; 2016 - 2020 MY Sienna [12/2015 -        ]

TERMINALS OF ECU

1. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the H14 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

H14-11 (B) - H14-12 (GND)

W - W-B

Power supply

Ignition switch ON

11 to 14 V

H14-12 (GND) - Body ground

W-B - 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 H14 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

H14-15 (DOWN) - H14-12 (GND)

P - W-B

Power window motor DOWN output

Ignition switch ON, multiplex network master switch assembly off

11 to 14 V

Ignition switch ON, multiplex network master switch assembly DOWN (Manual operation)

Below 1 V

H14-20 (UP) - H14-12 (GND)

V - W-B

Power window motor UP output

Ignition switch ON, multiplex network master switch assembly off

11 to 14 V

Ignition switch ON, multiplex network master switch assembly UP (Manual operation)

Below 1 V

If the result is not as specified, the multiplex network master switch assembly may have a malfunction.

2. CHECK FRONT POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

(a) Disconnect the G15 front power window regulator switch assembly RH 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

G15-7 (GND) - Body ground

W-B - 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 G15 front power window regulator switch assembly RH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G15-2 (IG) - G15-7 (GND)

R - W-B

IG power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

G15-5 (UP) - G15-7 (GND)

V - W-B

Power window motor up output

Ignition switch ON, front power window regulator switch assembly RH not pushed or pulled

11 to 14 V

Ignition switch ON, front passenger door power window moving, front power window regulator switch assembly RH pulled halfway up (Manual operation)

Below 1 V

Ignition switch ON, front passenger door power window fully open

11 to 14 V

Ignition switch ON, front passenger door power window moving, front power window regulator switch assembly RH fully pulled up (Auto operation)

Below 1 V

Ignition switch ON, front passenger door power window fully closed

11 to 14 V

G15-4 (DOWN) - G15-7 (GND)

G - W-B

Power window motor down output

Ignition switch ON, front power window regulator switch assembly RH not pushed or pulled

11 to 14 V

Ignition switch ON, front passenger door power window moving, front power window regulator switch assembly RH pushed halfway down (Manual operation)

Below 1 V

Ignition switch ON, front passenger door power window fully closed

11 to 14 V

Ignition switch ON, front passenger door power window moving, front power window regulator switch assembly RH fully pushed down (Auto operation)

Below 1 V

Ignition switch ON, front passenger door power window fully open

11 to 14 V

G15-8 (AUTO) - G15-7 (GND)

B - W-B

Power window motor up output

Ignition switch ON, front passenger door power window fully open

11 to 14 V

Ignition switch ON, front passenger door power window moving, front power window regulator switch assembly RH fully pulled up (Auto operation)

Below 1 V

Ignition switch ON, front passenger door power window fully closed

11 to 14 V

Power window motor down output

Ignition switch ON, front passenger door power window fully closed

11 to 14 V

Ignition switch ON, front passenger door power window moving, front power window regulator switch assembly RH fully pushed down (Auto operation)

Below 1 V

Ignition switch ON, front passenger door power window fully open

11 to 14 V

If the result is not as specified, the front power window regulator switch assembly RH may have a malfunction.

3. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH

(a) Disconnect the J12 rear power window regulator switch assembly LH 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

J12-7 (GND) - Body ground

W-B - 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 J12 rear power window regulator switch assembly LH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J12-2 (IG) - J12-7 (GND)

B - W-B

IG power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

J12-5 (UP) - J12-7 (GND)

R - W-B

Power window motor up output

Ignition switch ON, rear power window regulator switch assembly LH not pushed or pulled

11 to 14 V

Ignition switch ON, rear LH side power window moving, rear power window regulator switch assembly LH pulled halfway up (Manual operation)

Below 1 V

Ignition switch ON, rear LH side power window fully open

11 to 14 V

Ignition switch ON, rear LH side power window moving, rear power window regulator switch assembly LH fully pulled up (Auto operation)

Below 1 V

Ignition switch ON, rear LH side power window fully closed

11 to 14 V

J12-4 (DOWN) - J12-7 (GND)

W - W-B

Power window motor down output

Ignition switch ON, rear power window regulator switch assembly LH not pushed or pulled

11 to 14 V

Ignition switch ON, rear LH side power window moving, rear power window regulator switch assembly LH pushed halfway down (Manual operation)

Below 1 V

Ignition switch ON, rear LH side power window fully closed

11 to 14 V

Ignition switch ON, rear LH side power window moving, rear power window regulator switch assembly LH fully pushed down (Auto operation)

Below 1 V

Ignition switch ON, rear LH side power window fully open

11 to 14 V

J12-8 (AUTO) - J12-7 (GND)

G - W-B

Power window motor up output

Ignition switch ON, rear LH side power window fully open

11 to 14 V

Ignition switch ON, rear LH side power window moving, rear power window regulator switch assembly LH fully pulled up (Auto operation)

Below 1 V

Ignition switch ON, rear LH side power window fully closed

11 to 14 V

Power window motor down output

Ignition switch ON, rear LH side power window fully closed

11 to 14 V

Ignition switch ON, rear LH side power window moving, rear power window regulator switch assembly LH fully pushed down (Auto operation)

Below 1 V

Ignition switch ON, rear LH side power window fully open

11 to 14 V

If the result is not as specified, the rear power window regulator switch assembly LH may have a malfunction.

4. CHECK REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH

(a) Disconnect the I12 rear power window regulator switch assembly RH 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

I12-7 (GND) - Body ground

W-B - 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 I12 rear power window regulator switch assembly RH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I12-2 (IG) - I12-7 (GND)

SB - W-B

IG power supply

Ignition switch ON

11 to 14 V

Ignition switch off

Below 1 V

I12-5 (UP) - I12-7 (GND)

R - W-B

Power window motor up output

Ignition switch ON, rear power window regulator switch assembly RH not pushed or pulled

11 to 14 V

Ignition switch ON, rear RH side power window moving, rear power window regulator switch assembly RH pulled halfway up (Manual operation)

Below 1 V

Ignition switch ON, rear RH side power window fully open

11 to 14 V

Ignition switch ON, rear RH side power window moving, rear power window regulator switch assembly RH fully pulled up (Auto operation)

Below 1 V

Ignition switch ON, rear RH side power window fully closed

11 to 14 V

I12-4 (DOWN) - I12-7 (GND)

G - W-B

Power window motor down output

Ignition switch ON, rear power window regulator switch assembly RH not pushed or pulled

11 to 14 V

Ignition switch ON, rear RH side power window moving, rear power window regulator switch assembly RH pushed halfway down (Manual operation)

Below 1 V

Ignition switch ON, rear RH side power window fully closed

11 to 14 V

Ignition switch ON, rear RH side power window moving, rear power window regulator switch assembly RH fully pushed down (Auto operation)

Below 1 V

Ignition switch ON, rear RH side power window fully open

11 to 14 V

I12-8 (AUTO) - I12-7 (GND)

B - W-B

Power window motor up output

Ignition switch ON, rear RH side power window fully open

11 to 14 V

Ignition switch ON, rear RH side power window moving, rear power window regulator switch assembly RH fully pulled up (Auto operation)

Below 1 V

Ignition switch ON, rear RH side power window fully closed

11 to 14 V

Power window motor down output

Ignition switch ON, rear RH side power window fully closed

11 to 14 V

Ignition switch ON, rear RH side power window moving, rear power window regulator switch assembly RH fully pushed down (Auto operation)

Below 1 V

Ignition switch ON, rear RH side power window fully open

11 to 14 V

If the result is not as specified, the rear power window regulator switch assembly RH may have a malfunction.

5. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

(a) Disconnect the H1 front power window regulator motor assembly LH 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

H1-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

H1-2 (B) - Body ground

G - Body ground

Power supply

Always

11 to 14 V

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

(c) Reconnect the H1 front power window regulator motor assembly LH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

H1-7 (DOWN) - H1-1 (GND)

P - W-B

Power window motor DOWN input

Ignition switch ON, multiplex network master switch assembly off

11 to 14 V

Ignition switch ON, multiplex network master switch assembly DOWN (Manual operation)

Below 1 V

Ignition switch ON, driver side power window fully closed

11 to 14 V

Ignition switch ON, driver side power window fully DOWN (AUTO DOWN position)

Below 1 V

Ignition switch ON, driver side power window fully stopped (DOWN)

11 to 14 V

H1-10 (UP) - H1-1 (GND)

V - W-B

Power window motor UP input

Ignition switch ON, multiplex network master switch assembly off

11 to 14 V

Ignition switch ON, multiplex network master switch assembly UP (Manual operation)

Below 1 V

Ignition switch ON, driver side power window fully open

11 to 14 V

Ignition switch ON, driver side power window fully UP (AUTO UP position)

Below 1 V

Ignition switch ON, driver side power window fully stopped (UP)

11 to 14 V

If the result is not as specified, the front power window regulator motor assembly LH may have a malfunction.

6. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

(a) Disconnect the G1 front power window regulator motor assembly RH 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

G1-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

G1-2 (B) - Body ground

G - Body ground

Power supply

Always

11 to 14 V

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

(c) Reconnect the G1 front power window regulator motor assembly RH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

G1-4 (AUTO) - G1-1 (GND)

B - W-B

Power window motor AUTO UP input

Ignition switch ON, front passenger side power window fully open

11 to 14 V

Ignition switch ON, front passenger side power window fully UP (AUTO UP position)

Below 1 V

Ignition switch ON, front passenger side power window fully stopped (UP)

11 to 14 V

Power window motor AUTO DOWN input

Ignition switch ON, front passenger side power window fully closed

11 to 14 V

Ignition switch ON, front passenger side power window fully DOWN (AUTO DOWN position)

Below 1 V

Ignition switch ON, front passenger side power window fully stopped (DOWN)

11 to 14 V

G1-7 (DOWN) - G1-1 (GND)

G - W-B

Power window motor DOWN input

Ignition switch ON, front power window regulator switch assembly RH off

11 to 14 V

Ignition switch ON, front power window regulator switch assembly RH DOWN (Manual operation)

Below 1 V

Ignition switch ON, front passenger side power window fully closed

11 to 14 V

Ignition switch ON, front passenger side power window fully DOWN (AUTO DOWN position)

Below 1 V

Ignition switch ON, front passenger side power window fully stopped (DOWN)

11 to 14 V

G1-10 (UP) - G1-1 (GND)

V - W-B

Power window motor UP input

Ignition switch ON, front power window regulator switch assembly RH off

11 to 14 V

Ignition switch ON, front power window regulator switch assembly RH UP (Manual operation)

Below 1 V

Ignition switch ON, front passenger side power window fully open

11 to 14 V

Ignition switch ON, front passenger side power window fully UP (AUTO UP position)

Below 1 V

Ignition switch ON, front passenger side power window fully stopped (UP)

11 to 14 V

If the result is not as specified, the front power window regulator motor assembly RH may have a malfunction.

7. CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

(a) Disconnect the J7 rear power window regulator motor assembly LH 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

J7-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

J7-2 (B) - Body ground

GR - Body ground

Power supply

Always

11 to 14 V

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

(c) Reconnect the J7 rear power window regulator motor assembly LH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

J7-4 (AUTO) - J7-1 (GND)

G - W-B

Power window motor AUTO UP input

Ignition switch ON, rear LH side power window fully open

11 to 14 V

Ignition switch ON, rear LH side power window fully UP (AUTO UP position)

Below 1 V

Ignition switch ON, rear LH side power window fully stopped (UP)

11 to 14 V

Power window motor AUTO DOWN input

Ignition switch ON, rear LH side power window fully closed

11 to 14 V

Ignition switch ON, rear LH side power window fully DOWN (AUTO DOWN position)

Below 1 V

Ignition switch ON, rear LH side power window fully stopped (DOWN)

11 to 14 V

J7-7 (DOWN) - J7-1 (GND)

W - W-B

Power window motor DOWN input

Ignition switch ON, rear power window regulator switch assembly LH off

11 to 14 V

Ignition switch ON, rear power window regulator switch assembly LH DOWN (Manual operation)

Below 1 V

Ignition switch ON, rear LH side power window fully closed

11 to 14 V

Ignition switch ON, rear LH side power window fully DOWN (AUTO DOWN position)

Below 1 V

Ignition switch ON, rear LH side power window fully stopped (DOWN)

11 to 14 V

J7-10 (UP) - J7-1 (GND)

R - W-B

Power window motor UP input

Ignition switch ON, rear power window regulator switch assembly LH off

11 to 14 V

Ignition switch ON, rear power window regulator switch assembly LH UP (Manual operation)

Below 1 V

Ignition switch ON, rear LH side power window fully open

11 to 14 V

Ignition switch ON, rear LH side power window fully UP (AUTO UP position)

Below 1 V

Ignition switch ON, rear LH side power window fully stopped (UP)

11 to 14 V

If the result is not as specified, the rear power window regulator motor assembly LH may have a malfunction.

8. CHECK REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

(a) Disconnect the I7 rear power window regulator motor assembly RH 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

I7-1 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

I7-2 (B) - Body ground

R - Body ground

Power supply

Always

11 to 14 V

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

(c) Reconnect the I7 rear power window regulator motor assembly RH connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

I7-4 (AUTO) - I7-1 (GND)

B - W-B

Power window motor AUTO UP input

Ignition switch ON, rear RH side power window fully open

11 to 14 V

Ignition switch ON, rear RH side power window fully open (AUTO UP position)

Below 1 V

Ignition switch ON, rear RH side power window fully stopped (UP)

11 to 14 V

Power window motor AUTO DOWN input

Ignition switch ON, rear RH side power window fully closed

11 to 14 V

Ignition switch ON, rear RH side power window fully DOWN (AUTO DOWN position)

Below 1 V

Ignition switch ON, rear RH side power window fully stopped (DOWN)

11 to 14 V

I7-7 (DOWN) - I7-1 (GND)

G - W-B

Power window motor DOWN input

Ignition switch ON, rear power window regulator switch assembly RH off

11 to 14 V

Ignition switch ON, rear power window regulator switch assembly RH DOWN (Manual operation)

Below 1 V

Ignition switch ON, rear RH side power window fully closed

11 to 14 V

Ignition switch ON, rear RH side power window fully DOWN (AUTO DOWN position)

Below 1 V

Ignition switch ON, rear RH side power window fully stopped (DOWN)

11 to 14 V

I7-10 (UP) - I7-1 (GND)

R - W-B

Power window motor UP input

Ignition switch ON, rear power window regulator switch assembly RH off

11 to 14 V

Ignition switch ON, rear power window regulator switch assembly RH UP (Manual operation)

Below 1 V

Ignition switch ON, rear RH side power window fully open

11 to 14 V

Ignition switch ON, rear RH side power window fully UP (AUTO UP position)

Below 1 V

Ignition switch ON, rear RH side power window fully stopped (UP)

11 to 14 V

If the result is not as specified, the rear power window regulator motor assembly RH may have a malfunction.

9. CHECK MAIN BODY ECU AND INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

(a) Remove the main body ECU.

(b) Disconnect the D14 main body ECU connector.

(c) 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

2I-2 (FLCY) - Body ground

-

Front door courtesy light switch LH input

Driver side door Closed (off)

10 kΩ or higher

Driver side door Open (on)

Below 1 Ω

2I-4 (FRCY) - Body ground

-

Front door courtesy light switch RH input

Front passenger side door Closed (off

10 kΩ or higher

Front passenger side door Open (on)

Below 1 Ω

2I-11 (GND1) - Body ground

-

Ground

Always

Below 1 Ω

2I-29 (ACC) - Body ground

-

Ignition power supply (ACC signal)

Ignition switch ACC

11 to 14 V

Ignition switch off

Below 1 V

2I-30 (BECU) - Body ground

-

Battery power supply

Always

11 to 14 V

2I-31 (ALTB) - Body ground

-

Battery power supply

Always

11 to 14 V

D14-3 (GND2) - 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.

(d) Reinstall the main body ECU.

(e) Reconnect the D14 main body ECU connector.

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

Terminal No. (Symbol)

Wiring Color

Terminal Description

Condition

Specified Condition

2H-36 (FRCY) - Body ground

GR - Body ground

Front door courtesy light switch RH input

Front passenger side door open

Below 1 V

Front door courtesy light switch RH input

Front passenger side door closed

11 to 14 V

2H-34 (FLCY) - Body ground

P - Body ground

Front door courtesy light switch LH input

Driver side door open

Below 1 V

Front door courtesy light switch LH input

Driver side door closed

11 to 14 V

D13-2 (PWS) - Body ground

V - Body ground

P/W MAIN relay operation signal

Ignition switch ON

11 to 14 V

If the result is not as specified, the ECU may have a malfunction.