B2325

NETWORKING: LIN COMMUNICATION SYSTEM: B2325: LIN Communication Bus Malfunction

DTC B2325 - LIN Communication Bus Malfunction

DESCRIPTION

The main body ECU (cowl side junction block LH) intermittently monitors the LIN communication bus between the components related to the door and sliding roof. DTC B2325 is stored when a malfunction in the LIN communication bus between the components related to the door and sliding roof is detected consecutively 3 times.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTE: When using the Techstream with the engine 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: When DTC B2325 and a LIN communication stop DTC are output simultaneously, first perform the troubleshooting for the LIN communication stop DTC. Then perform the troubleshooting for DTC B2325.

PROCEDURE

1. CLEAR DTC
(a) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
2. CHECK FOR DTC
(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- USE SIMULATION METHOD TO CHECK
A -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MASTER SWITCH)





(a) Disconnect the E3 and R5 ECU connectors.
(b) Disconnect the I4, I12, J4 and J11 motor connectors.
(c) Disconnect the I11 switch connector.
(d) 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.
4. CLEAR DTC
(a) Reconnect the E3 ECU connector.
(b) Disconnect the I11 master switch connector.
(c) Reconnect I4, I12, J4 and J11 motor connectors.
(d) Reconnect the R5 gear connector.
(e) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
5. CHECK FOR DTC
(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- REPLACE MASTER SWITCH ASSEMBLY
A -- Continue to next step.
6. CLEAR DTC
(a) Reconnect the I11 switch connector.
(b) Disconnect the I12 motor connector.
(c) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
7. CHECK FOR DTC
(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR LH
A -- Continue to next step.
8. CLEAR DTC
(a) Reconnect the I12 motor connector.
(b) Disconnect the I4 motor connector.
(c) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
9. CHECK FOR DTC
(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR RH
A -- Continue to next step.
10. CLEAR DTC
(a) Reconnect the I4 motor connector.
(b) Disconnect the J4 motor connector.
(c) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
11. CHECK FOR DTC
(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- REPLACE REAR POWER WINDOW REGULATOR MOTOR RH
A -- Continue to next step.
12. CLEAR DTC
(a) Reconnect the J4 motor connector.
(b) Disconnect the J11 motor connector.
(c) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
13. CHECK FOR DTC
(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- REPLACE REAR POWER WINDOW REGULATOR MOTOR LH
A -- Continue to next step.
14. CLEAR DTC
(a) Reconnect the J11 motor connector.
(b) Disconnect the R5 gear connector.
(c) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
15. CHECK FOR DTC
(a) Recheck for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY
A -- REPLACE MAIN BODY ECU (COWL SIDE JUNCTION BLOCK LH)