B2325
NETWORKING: LIN COMMUNICATION SYSTEM: B2325: LIN Communication Bus Malfunction
B2325 - LIN Communication Bus Malfunction
DESCRIPTION
The main body ECU (multiplex network body ECU) intermittently monitors the LIN communication bus between the components related to the doors and sliding roof drive gear sub-assembly. DTC B2325 is stored when a malfunction in the LIN communication bus between the components related to the doors and sliding roof drive gear sub-assembly is detected consecutively 3 times.
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 light switch on and off at 1.5 second intervals until communication between the Techstream and vehicle begins.
* When a power window regulator motor assembly is removed and reinstalled or replaced, a power window regulator motor assembly must be initialized Initialization.
* When the sliding roof drive gear sub-assembly is removed and reinstalled or replaced, the sliding roof drive gear sub-assembly must be initialized Initialization.
HINT
When DTC B2325 and a LIN communication stop DTC are output simultaneously, first perform troubleshooting for DTC B2325. Then perform troubleshooting for the LIN communication stop DTC.
PROCEDURE
1. CLEAR DTC
(a) Clear the DTCs 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.
OK:
DTC B2325 is not output.
NG -- CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MULTIPLEX NETWORK MASTER SWITCH)
OK -- USE SIMULATION METHOD TO CHECK Electronic Circuit Inspection Procedure
3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MULTIPLEX NETWORK MASTER SWITCH)
(a) Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly Removal.
(b) Disconnect the K3 multiplex network master switch assembly 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. CLEAR DTC
(a) Install the main body ECU (multiplex network body ECU) to the driver side junction block assembly Installation.
(b) Connect the K3 multiplex network master switch assembly connector.
(c) Disconnect the K6 front power window regulator motor assembly LH connector.
(d) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
5. CHECK FOR DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal
A -- Continue to next step.
6. CLEAR DTC
(a) Connect the K6 front power window regulator motor assembly LH connector.
(b) Disconnect the K3 multiplex network master switch assembly connector.
(c) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
7. CHECK FOR DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Removal
A -- Continue to next step.
8. CLEAR DTC
(a) Connect the K3 multiplex network master switch assembly connector.
(b) Disconnect the J6 front power window regulator motor assembly RH connector.
(c) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
9. CHECK FOR DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal
A -- Continue to next step.
10. CLEAR DTC
(a) Connect the J6 front power window regulator motor assembly RH connector.
(b) Disconnect the L4 rear power window regulator motor assembly RH connector.
(c) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
11. CHECK FOR DTC
(a) Check for DTCs 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) Connect the L4 rear power window regulator motor assembly RH connector.
(b) Disconnect the M4 rear power window regulator motor assembly LH connector.
(c) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
13. CHECK FOR DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal
A -- Continue to next step.
14. CLEAR DTC
(a) Connect the M4 rear power window regulator motor assembly LH connector.
(b) Disconnect the W2 sliding roof drive gear sub-assembly connector.
(c) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
NEXT -- Continue to next step.
15. CHECK FOR DTC
(a) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY Disassembly
A -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal