B2325
SLIDING ROOF: SLIDING ROOF SYSTEM: B2325: LIN Communication Bus Malfunction
B2325 - LIN Communication Bus Malfunction
DESCRIPTION
The main body ECU (instrument panel junction block) intermittently monitors the LIN communication bus between the components related to the sliding roof. DTC B2325 is stored when a malfunction in the LIN communication bus between the components related to the sliding roof is detected consecutively 3 times.
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
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. CHECK DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Check the DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
B -- USE SIMULATION METHOD TO CHECK How To Proceed With Troubleshooting
A -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - SLIDING ROOF DRIVE GEAR)
(a) Disconnect the C45 main body ECU connector.
(b) Disconnect the J3 sliding roof drive gear sub-assembly connector.
(c) Measure the resistance according to the value(s) in the tables below.
Standard Resistance:
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
3. REPLACE SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU)
(a) Temporarily replace the sliding roof drive gear sub-assembly with a new or normally functioning one Disassembly (from 10/2010).
NEXT -- Continue to next step.
4. CHECK DTC
(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.
(b) Check the DTCs Reading and Clearing Diagnostic Trouble Codes.
Result
B -- REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)
A -- END (SLIDING ROOF ECU IS DEFECTIVE)