Toyota Venza manuals

Toyota Venza: Front Passenger Side Door ECU Communication Stop (B2322)

Toyota Venza Service Manual / Networking / Lin Communication System / Front Passenger Side Door ECU Communication Stop (B2322)

DESCRIPTION

This DTC is stored when LIN communication between the power window regulator motor assembly (for front passenger side) and main body ECU (driver side junction block assembly) stops for more than 10 seconds.

DTC No.

DTC Detection Condition

Trouble Area

B2322

No communication between the power window regulator motor assembly (for front passenger side) and main body ECU (driver side junction block assembly) for more than 10 seconds.

  • Power window regulator motor assembly (for Front passenger side)
  • Main body ECU (Driver side junction block assembly)
  • Wire harness or connector
  • FR DOOR fuse

WIRING DIAGRAM


CAUTION / NOTICE / HINT

NOTICE:

  • When the power window regulator motor assembly (for front passenger side) is replaced or removed and reinstalled, it requires initialization (See page ).

  • When using the Techstream to troubleshoot with the ignition switch off:

    Connect the Techstream to the DLC3, and turn the courtesy switch on and off at 1.5-second intervals until communication between the Techstream and vehicle begins.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MOTOR - BATTERY AND BODY GROUND)

(a) Disconnect the H4 motor connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

H4-1 (GND) - Body ground

Always

Below 1 Ω

Standard Voltage:

Tester Connection

Condition

Specified Condition

H4-2 (B) - Body ground

Always

11 to 14 V

Text in Illustration

*1

Front view of wire harness connector

(to Power Window Regulator Motor Assembly (for Front Passenger Side))


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

2.

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - POWER WINDOW REGULATOR MOTOR ASSEMBLY)

(a) Disconnect the D48 ECU connector.


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

Standard Resistance:

Tester Connection

Condition

Specified Condition

D48-10 (LIN2) - H4-9 (LIN)

Always

Below 1 Ω

D48-10 (LIN2) - Body ground

Always

10 kΩ or higher

Text in Illustration

*1

Front view of wire harness connector

(to Main Body ECU (Driver Side Junction Block Assembly))

*2

Front view of wire harness connector

(to Power Window Regulator Motor Assembly (for Front Passenger Side))


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR


OK

3.

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for FRONT PASSENGER SIDE)

(a) Replace the power window regulator motor assembly (for front passenger side) (See page ).



NEXT

4.

CHECK DTC OUTPUT

(a) Clear the DTC (See page ).


(b) Recheck for DTCs.

OK:

DTC B2322 is not output.


OK

END (POWER WINDOW REGULATOR MOTOR ASSEMBLY WAS DEFECTIVE)


NG

REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)

LIN Communication Bus Malfunction (B2325)
DESCRIPTION The main body ECU (driver side junction block assembly) monitors communication between all the ECUs connected to the door bus lines. When the main body ECU (driver side junction block ...

Rear Door RH ECU Communication Stop (B2323)
DESCRIPTION This DTC is stored when LIN communication between the power window regulator motor assembly (for rear RH side) and main body ECU (driver side junction block assembly) stops for more t ...

Other materials about Toyota Venza:

Window Glass Antenna Wire
On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. INSPECT WINDOW GLASS ANTENNA WIRE (a) Check for continuity of the antenna. HINT: Check for continuity at the center of each antenna wire as shown in the illustration. N ...

Headlight Solenoid Circuit
DESCRIPTION for HID Headlight: When the main body ECU receives a high beam turn on signal, the main body ECU activates the bi-function by controlling the BI-XENON relay. The bi-function increases the upper illumination area of the discharge ...

Radio Antenna
Components COMPONENTS ILLUSTRATION ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL RADIO ANTENNA ASSEMBLY (a) Engage the 2 claws to install the radio antenna assembly. (b) Place the antenna cord in the cutout of the ante ...

© 2016-2025 Copyright www.tovenza.com

0.1571