Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Terminals Of Ecu

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Vehicle Exterior / Window / Glass / Power Window Control System / Terminals Of Ecu

TERMINALS OF ECU

CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY

(a) Disconnect the N7 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

N7-11 (B) - N7-12 (GND)

B - W-B

Power supply

Always

11 to 14 V

N7-12 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the N7 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

N7-15 (DOWN) - N7-12 (GND)

B - W-B

Power window motor DOWN output

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

11 to 14 V

N7-15 (DOWN) - N7-12 (GND)

B - W-B

Power window motor DOWN output

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

Below 1 V

N7-20 (UP) - N7-12 (GND)

G - W-B

Power window motor UP output

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

11 to 14 V

N7-20 (UP) - N7-12 (GND)

G - W-B

Power window motor UP output

Engine 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 M6 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

M6-5 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the M6 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

M6-8 (LED) - M6-5 (GND)

L - W-B

LED illumination signal

Engine switch on (IG)

11 to 14 V

M6-8 (LED) - M6-5 (GND)

L - W-B

LED illumination signal

Engine switch off

Below 1 V

M6-2 (UP) - M6-5 (GND)

R - W-B

Power window motor UP output

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

11 to 14 V

M6-2 (UP) - M6-5 (GND)

R - W-B

Power window motor UP output

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

Below 1 V

M6-2 (UP) - M6-5 (GND)

R - W-B

Power window motor UP output

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

11 to 14 V

M6-2 (UP) - M6-5 (GND)

R - W-B

Power window motor UP output

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

Below 1 V

M6-2 (UP) - M6-5 (GND)

R - W-B

Power window motor UP output

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

11 to 14 V

M6-10 (DOWN) - M6-5 (GND)

B - W-B

Power window motor DOWN output

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

11 to 14 V

M6-10 (DOWN) - M6-5 (GND)

B - W-B

Power window motor DOWN output

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

Below 1 V

M6-10 (DOWN) - M6-5 (GND)

B - W-B

Power window motor DOWN output

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

11 to 14 V

M6-10 (DOWN) - M6-5 (GND)

B - W-B

Power window motor DOWN output

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

Below 1 V

M6-10 (DOWN) - M6-5 (GND)

B - W-B

Power window motor DOWN output

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

11 to 14 V

M6-4 (AUTO) - M6-5 (GND)

Y - W-B

Power window motor AUTO UP output

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

11 to 14 V

M6-4 (AUTO) - M6-5 (GND)

Y - W-B

Power window motor AUTO UP output

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

Below 1 V

M6-4 (AUTO) - M6-5 (GND)

Y - W-B

Power window motor AUTO UP output

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

11 to 14 V

M6-4 (AUTO) - M6-5 (GND)

Y - W-B

Power window motor AUTO DOWN output

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

11 to 14 V

M6-4 (AUTO) - M6-5 (GND)

Y - W-B

Power window motor AUTO DOWN output

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

Below 1 V

M6-4 (AUTO) - M6-5 (GND)

Y - W-B

Power window motor AUTO DOWN output

Engine 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 Q2 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

Q2-5 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the Q2 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

Q2-8 (LED) - Q2-5 (GND)

G - W-B

LED illumination signal

Engine switch on (IG)

11 to 14 V

Q2-8 (LED) - Q2-5 (GND)

G - W-B

LED illumination signal

Engine switch off

Below 1 V

Q2-2 (UP) - Q2-5 (GND)

V - W-B

Power window motor UP output

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

11 to 14 V

Q2-2 (UP) - Q2-5 (GND)

V - W-B

Power window motor UP output

Engine 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

Q2-2 (UP) - Q2-5 (GND)

V - W-B

Power window motor UP output

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

11 to 14 V

Q2-2 (UP) - Q2-5 (GND)

V - W-B

Power window motor UP output

Engine 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

Q2-2 (UP) - Q2-5 (GND)

V - W-B

Power window motor UP output

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

11 to 14 V

Q2-10 (DOWN) - Q2-5 (GND)

W - W-B

Power window motor DOWN output

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

11 to 14 V

Q2-10 (DOWN) - Q2-5 (GND)

W - W-B

Power window motor DOWN output

Engine 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

Q2-10 (DOWN) - Q2-5 (GND)

W - W-B

Power window motor DOWN output

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

11 to 14 V

Q2-10 (DOWN) - Q2-5 (GND)

W - W-B

Power window motor DOWN output

Engine 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

Q2-10 (DOWN) - Q2-5 (GND)

W - W-B

Power window motor DOWN output

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

11 to 14 V

Q2-4 (AUTO) - Q2-5 (GND)

B - W-B

Power window motor AUTO UP output

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

11 to 14 V

Q2-4 (AUTO) - Q2-5 (GND)

B - W-B

Power window motor AUTO UP output

Engine 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

Q2-4 (AUTO) - Q2-5 (GND)

B - W-B

Power window motor AUTO UP output

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

11 to 14 V

Q2-4 (AUTO) - Q2-5 (GND)

B - W-B

Power window motor AUTO DOWN output

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

11 to 14 V

Q2-4 (AUTO) - Q2-5 (GND)

B - W-B

Power window motor AUTO DOWN output

Engine 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

Q2-4 (AUTO) - Q2-5 (GND)

B - W-B

Power window motor AUTO DOWN output

Engine 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 Q1 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

Q1-5 (GND) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

(c) Reconnect the Q1 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

Q1-8 (LED) - Q1-5 (GND)

G - W-B

LED illumination signal

Engine switch on (IG)

11 to 14 V

Q1-8 (LED) - Q1-5 (GND)

G - W-B

LED illumination signal

Engine switch off

Below 1 V

Q1-2 (UP) - Q1-5 (GND)

V - W-B

Power window motor UP output

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

11 to 14 V

Q1-2 (UP) - Q1-5 (GND)

V - W-B

Power window motor UP output

Engine 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

Q1-2 (UP) - Q1-5 (GND)

V - W-B

Power window motor UP output

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

11 to 14 V

Q1-2 (UP) - Q1-5 (GND)

V - W-B

Power window motor UP output

Engine 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

Q1-2 (UP) - Q1-5 (GND)

V - W-B

Power window motor UP output

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

11 to 14 V

Q1-10 (DOWN) - Q1-5 (GND)

W - W-B

Power window motor DOWN output

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

11 to 14 V

Q1-10 (DOWN) - Q1-5 (GND)

W - W-B

Power window motor DOWN output

Engine 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

Q1-10 (DOWN) - Q1-5 (GND)

W - W-B

Power window motor DOWN output

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

11 to 14 V

Q1-10 (DOWN) - Q1-5 (GND)

W - W-B

Power window motor DOWN output

Engine 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

Q1-10 (DOWN) - Q1-5 (GND)

W - W-B

Power window motor DOWN output

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

11 to 14 V

Q1-4 (AUTO) - Q1-5 (GND)

B - W-B

Power window motor AUTO UP output

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

11 to 14 V

Q1-4 (AUTO) - Q1-5 (GND)

B - W-B

Power window motor AUTO UP output

Engine 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

Q1-4 (AUTO) - Q1-5 (GND)

B - W-B

Power window motor AUTO UP output

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

11 to 14 V

Q1-4 (AUTO) - Q1-5 (GND)

B - W-B

Power window motor AUTO DOWN output

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

11 to 14 V

Q1-4 (AUTO) - Q1-5 (GND)

B - W-B

Power window motor AUTO DOWN output

Engine 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

Q1-4 (AUTO) - Q1-5 (GND)

B - W-B

Power window motor AUTO DOWN output

Engine 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 N13 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

N13-1 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

N13-2 (B) - Body ground

L - Body ground

Power supply

Always

11 to 14 V

(c) Reconnect the N13 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

N13-7 (DWN1) - N13-1 (E)

B - W-B

Power window motor DOWN input

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

11 to 14 V

N13-7 (DWN1) - N13-1 (E)

B - W-B

Power window motor DOWN input

Engine 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

N13-7 (DWN1) - N13-1 (E)

B - W-B

Power window motor DOWN input

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

11 to 14 V

N13-7 (DWN1) - N13-1 (E)

B - W-B

Power window motor DOWN input

Engine 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

N13-7 (DWN1) - N13-1 (E)

B - W-B

Power window motor DOWN input

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

11 to 14 V

N13-10 (UP1) - N13-1 (E)

G - W-B

Power window motor UP input

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

11 to 14 V

N13-10 (UP1) - N13-1 (E)

G - W-B

Power window motor UP input

Engine 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

N13-10 (UP1) - N13-1 (E)

G - W-B

Power window motor UP input

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

11 to 14 V

N13-10 (UP1) - N13-1 (E)

G - W-B

Power window motor UP input

Engine 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

N13-10 (UP1) - N13-1 (E)

G - W-B

Power window motor UP input

Engine 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 M13 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

M13-1 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

M13-2 (B) - Body ground

G - Body ground

Power supply

Always

11 to 14 V

(c) Reconnect the M13 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

M13-4 (AUTO) - M13-1 (E)

Y - W-B

Power window motor AUTO UP input

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

11 to 14 V

M13-4 (AUTO) - M13-1 (E)

Y - W-B

Power window motor AUTO UP input

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

Below 1 V

M13-4 (AUTO) - M13-1 (E)

Y - W-B

Power window motor AUTO UP input

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

11 to 14 V

M13-4 (AUTO) - M13-1 (E)

Y - W-B

Power window motor AUTO DOWN input

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

11 to 14 V

M13-4 (AUTO) - M13-1 (E)

Y - W-B

Power window motor AUTO DOWN input

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

Below 1 V

M13-4 (AUTO) - M13-1 (E)

Y - W-B

Power window motor AUTO DOWN input

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

11 to 14 V

M13-5 (LED) - M13-1 (E)

L - W-B

LED illumination signal

Engine switch on (IG)

11 to 14 V

M13-5 (LED) - M13-1 (E)

L - W-B

LED illumination signal

Engine switch off

Below 1 V

M13-7 (DWN1) - M13-1 (E)

B - W-B

Power window motor DOWN input

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

11 to 14 V

M13-7 (DWN1) - M13-1 (E)

B - W-B

Power window motor DOWN input

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

Below 1 V

M13-7 (DWN1) - M13-1 (E)

B - W-B

Power window motor DOWN input

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

11 to 14 V

M13-7 (DWN1) - M13-1 (E)

B - W-B

Power window motor DOWN input

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

Below 1 V

M13-7 (DWN1) - M13-1 (E)

B - W-B

Power window motor DOWN input

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

11 to 14 V

M13-10 (UP1) - M13-1 (E)

R - W-B

Power window motor UP input

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

11 to 14 V

M13-10 (UP1) - M13-1 (E)

R - W-B

Power window motor UP input

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

Below 1 V

M13-10 (UP1) - M13-1 (E)

R - W-B

Power window motor UP input

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

11 to 14 V

M13-10 (UP1) - M13-1 (E)

R - W-B

Power window motor UP input

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

Below 1 V

M13-10 (UP1) - M13-1 (E)

R - W-B

Power window motor UP input

Engine 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 P1 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

P1-1 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

P1-2 (B) - Body ground

L - Body ground

Power supply

Always

11 to 14 V

(c) Reconnect the P1 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

P1-4 (AUTO) - P1-1 (E)

B - W-B

Power window motor AUTO UP input

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

11 to 14 V

P1-4 (AUTO) - P1-1 (E)

B - W-B

Power window motor AUTO UP input

Engine 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

P1-4 (AUTO) - P1-1 (E)

B - W-B

Power window motor AUTO UP input

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

11 to 14 V

P1-4 (AUTO) - P1-1 (E)

B - W-B

Power window motor AUTO DOWN input

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

11 to 14 V

P1-4 (AUTO) - P1-1 (E)

B - W-B

Power window motor AUTO DOWN input

Engine 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

P1-4 (AUTO) - P1-1 (E)

B - W-B

Power window motor AUTO DOWN input

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

11 to 14 V

P1-5 (LED) - P1-1 (E)

G - W-B

LED illumination signal

Engine switch on (IG)

11 to 14 V

P1-5 (LED) - P1-1 (E)

G - W-B

LED illumination signal

Engine switch off

Below 1 V

P1-7 (DWN1) - P1-1 (E)

W - W-B

Power window motor DOWN input

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

11 to 14 V

P1-7 (DWN1) - P1-1 (E)

W - W-B

Power window motor DOWN input

Engine 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

P1-7 (DWN1) - P1-1 (E)

W - W-B

Power window motor DOWN input

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

11 to 14 V

P1-7 (DWN1) - P1-1 (E)

W - W-B

Power window motor DOWN input

Engine 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

P1-7 (DWN1) - P1-1 (E)

W - W-B

Power window motor DOWN input

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

11 to 14 V

P1-10 (UP1) - P1-1 (E)

V - W-B

Power window motor UP input

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

11 to 14 V

P1-10 (UP1) - P1-1 (E)

V - W-B

Power window motor UP input

Engine 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

P1-10 (UP1) - P1-1 (E)

V - W-B

Power window motor UP input

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

11 to 14 V

P1-10 (UP1) - P1-1 (E)

V - W-B

Power window motor UP input

Engine 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

P1-10 (UP1) - P1-1 (E)

V - W-B

Power window motor UP input

Engine 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 O1 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

O1-1 (E) - Body ground

W-B - Body ground

Ground

Always

Below 1 Ω

O1-2 (B) - Body ground

P - Body ground

Power supply

Always

11 to 14 V

(c) Reconnect the O1 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

O1-4 (AUTO) - O1-1 (E)

B - W-B

Power window motor AUTO UP input

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

11 to 14 V

O1-4 (AUTO) - O1-1 (E)

B - W-B

Power window motor AUTO UP input

Engine 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

O1-4 (AUTO) - O1-1 (E)

B - W-B

Power window motor AUTO UP input

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

11 to 14 V

O1-4 (AUTO) - O1-1 (E)

B - W-B

Power window motor AUTO DOWN input

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

11 to 14 V

O1-4 (AUTO) - O1-1 (E)

B - W-B

Power window motor AUTO DOWN input

Engine 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

O1-4 (AUTO) - O1-1 (E)

B - W-B

Power window motor AUTO DOWN input

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

11 to 14 V

O1-5 (LED) - O1-1 (E)

G - W-B

LED illumination signal

Engine switch on (IG)

11 to 14 V

O1-5 (LED) - O1-1 (E)

G - W-B

LED illumination signal

Engine switch off

Below 1 V

O1-7 (DWN1) - O1-1 (E)

W - W-B

Power window motor DOWN input

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

11 to 14 V

O1-7 (DWN1) - O1-1 (E)

W - W-B

Power window motor DOWN input

Engine 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

O1-7 (DWN1) - O1-1 (E)

W - W-B

Power window motor DOWN input

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

11 to 14 V

O1-7 (DWN1) - O1-1 (E)

W - W-B

Power window motor DOWN input

Engine 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

O1-7 (DWN1) - O1-1 (E)

W - W-B

Power window motor DOWN input

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

11 to 14 V

O1-10 (UP1) - O1-1 (E)

V - W-B

Power window motor UP input

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

11 to 14 V

O1-10 (UP1) - O1-1 (E)

V - W-B

Power window motor UP input

Engine 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

O1-10 (UP1) - O1-1 (E)

V - W-B

Power window motor UP input

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

11 to 14 V

O1-10 (UP1) - O1-1 (E)

V - W-B

Power window motor UP input

Engine 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

O1-10 (UP1) - O1-1 (E)

V - W-B

Power window motor UP input

Engine 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.

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

(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 connectors connected.

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

-

Battery power supply

Always

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Engine switch on (ACC)

11 to 14 V

MB-30 (ACC) - Body ground

-

ACC power supply

Engine switch off

Below 1 V

MB-32 (IG) - Body ground

-

IG power supply

Engine switch on (IG)

11 to 14 V

MB-32 (IG) - Body ground

-

IG power supply

Engine switch off

Below 1 V

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

(e) 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

J8-6 (FLCY) - Body ground

P - Body ground

Front door courtesy light switch assembly (for LH) input

Front door LH open

Below 1 V

J8-6 (FLCY) - Body ground

P - Body ground

Front door courtesy light switch assembly (for LH) input

Front door LH closed

11 to 14 V

J8-27 (FRCY) - Body ground

R - Body ground

Front door courtesy light switch assembly (for RH) input

Front door RH open

Below 1 V

J8-27 (FRCY) - Body ground

R - Body ground

Front door courtesy light switch assembly (for RH) input

Front door RH closed

11 to 14 V

J8-29 (L2) - Body ground

P - Body ground

Driver door key-linked lock input

Driver door key cylinder turned to lock

Below 1 V

J8-29 (L2) - Body ground

P - Body ground

Driver door key-linked lock input

Driver door key cylinder not turned

Pulse generation

J8-2 (UL3) - Body ground

V - Body ground

Driver door key-linked unlock input

Driver door key cylinder turned to unlock

Below 1 V

J8-2 (UL3) - Body ground

V - Body ground

Driver door key-linked unlock input

Driver door key cylinder not turned

Pulse generation
    Diagnosis System
    DIAGNOSIS SYSTEM DESCRIPTION (a) Power window control system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle Data Link Connector 3 (DLC3). When the system seems to be malfunct ...

    Data List / Active Test
    DATA LIST / ACTIVE TEST DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. Th ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

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