B2325
MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: B2325: LIN Communication Bus Malfunction
B2325 - LIN Communication Bus Malfunction
DESCRIPTION
The main body ECU (driver side junction block) monitors the LIN communication bus between the components related to the door and sliding roof intermittently. DTC B2325 is output when a malfunction in the LIN communication bus between the components related to the door and sliding roof is detected continuously 3 times.
HINT
*: w/ Sliding Roof System
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
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 DTC Reading and Clearing Diagnostic Trouble Codes.
OK:
DTC B2325 is not output.
NG -- CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MASTER SWITCH)
OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MASTER SWITCH)
(a) Disconnect the L11 ECU connector.
(b) Disconnect the N13 switch connector.
(c) Measure the resistance and voltage according to the value(s) in the table below.
Standard resistance:
Standard voltage:
OK -- REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
NG -- Continue to next step.
4. CLEAR DTC
(a) Reconnect the L11 ECU connector.
(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
5. CHECK FOR DTC
(a) Disconnect the N13 switch connector.
(b) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE MASTER SWITCH ASSEMBLY Disassembly
A -- Continue to next step.
6. CLEAR DTC
(a) Reconnect the N13 switch connector.
(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
7. CHECK FOR DTC
(a) Disconnect the N11 motor connector.
(b) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Disassembly
A -- Continue to next step.
8. CLEAR DTC
(a) Reconnect the N11 motor connector.
(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
9. CHECK FOR DTC
(a) Disconnect the N3 motor connector.
(b) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Disassembly
A -- Continue to next step.
10. CLEAR DTC
(a) Reconnect the N3 motor connector.
(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
11. CHECK FOR DTC
(a) Disconnect the O8 motor connector.
(b) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal
A -- Continue to next step.
12. CLEAR DTC
(a) Reconnect the O8 motor connector.
(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
13. CHECK FOR DTC
(a) Disconnect the O19 motor connector.
(b) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPAIR OR REPLACE HARNESS OR CONNECTOR
C -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal
A -- Continue to next step.
14. CLEAR DTC
(a) Reconnect the O19 motor connector.
(b) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
15. CHECK FOR DTC
(a) Disconnect the X5 gear connector.
(b) Recheck for DTC Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) Removal
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR