B2322

MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: B2322: Front Passenger Side Door ECU Communication Stop
B2322 - Front Passenger Side Door ECU Communication Stop

DESCRIPTION

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





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When using the Techstream with the ignition switch OFF to troubleshoot:

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

HINT
DTC B2325 is output when communication between the front power window regulator motor assembly RH and main body ECU (driver side junction block) stops.

PROCEDURE

1. CLEAR DTC

(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

2. CHECK FOR DTC

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REGULATOR MOTOR RH)

(a) Disconnect the J2 main body ECU (driver side junction block) connector.





(b) Disconnect the M11 front power window regulator motor assembly RH connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

4. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (REGULATOR MOTOR RH - BATTERY AND BODY GROUND)

(a) Disconnect the M11 front power window regulator motor assembly RH connector.





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

Standard Resistance:





Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

5. REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH

(a) Temporarily replace the front power window regulator motor assembly RH with a new or normally functioning one Removal.

(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

NEXT -- Continue to next step.

6. CHECK FOR DTC

(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)

A -- END (FRONT POWER WINDOW REGULATOR MOTOR RH IS DEFECTIVE)