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.
* *: w/ Sliding Roof System
* *: w/ Sliding Roof System
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 light switch on and off at 1.5 second intervals until communication between the Techstream and vehicle begins.
* Inspect the fuses and bulbs for circuits related to this system before performing the following inspection procedure.
HINT
When DTC B2325 and a LIN communication stop DTC are output simultaneously, first perform troubleshooting for the LIN communication stop DTC. Then perform troubleshooting for DTC B2325.
PROCEDURE
1. CLEAR DTC
(a) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
2. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
OK:
DTC B2325 is not output.
NG -- CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - MULTIPLEX NETWORK MASTER SWITCH)
OK -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
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 h1 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) Disconnect the I2 front power window regulator motor assembly LH connector.
(c) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
5. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
Result
B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal
A -- Continue to next step.
6. CLEAR DTC
(a) Connect the I2 front power window regulator motor assembly LH connector.
(b) Disconnect the h1 multiplex network master switch assembly connector.
(c) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
7. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
Result
B -- REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Removal
A -- Continue to next step.
8. CLEAR DTC
(a) Connect the h1 multiplex network master switch assembly connector.
(b) Disconnect the H2 front power window regulator motor assembly RH connector.
(c) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
9. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
Result
B -- REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal
A -- Continue to next step.
10. CLEAR DTC
(a) Connect the H2 front power window regulator motor assembly RH connector.
(b) Disconnect the J2 rear power window regulator motor assembly RH connector.
(c) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
11. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
Result
B -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Removal
A -- Continue to next step.
12. CLEAR DTC
(a) Connect the J2 rear power window regulator motor assembly RH connector.
(b) Disconnect the K2 rear power window regulator motor assembly LH connector.
(c) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
13. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
Result
B -- REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Removal
A -- Continue to next step.
14. CLEAR DTC
(a) Connect the K2 rear power window regulator motor assembly LH connector.
(b) Disconnect the V2 multiplex network door ECU (back door P/W) connector.
(c) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
15. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
Result
C -- REPLACE MULTIPLEX NETWORK DOOR ECU Removal
B -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal
A -- Continue to next step.
16. CLEAR DTC
(a) Connect the V2 multiplex network door ECU (back door P/W) connector.
(b) Disconnect the S8 sliding roof drive gear sub-assembly connector.
(c) Clear the DTCs Initial Inspection and Diagnostic Overview.
NEXT -- Continue to next step.
17. CHECK FOR DTC
(a) Check for DTCs Initial Inspection and Diagnostic Overview.
Result
B -- REPLACE SLIDING ROOF DRIVE CABLE SUB-ASSEMBLY Disassembly
A -- REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Removal