1.CHECK DTC. 1) Turn the ignition switch to ON. 2) Read the DTC of the power seat control module using the Subaru Select Monitor. Read Diagnostic Trouble Code (DTC) | Is DTC B2603 displayed- (Current malfunction) | Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2603 EPB CONTROL | Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and perform the diagnosis again. NOTE: In this case, temporary poor contact of connector, temporary open or short circuit of harness may be the cause. |
2.CHECK DTC. Perform the inspection for LAN system. Basic Diagnostic Procedure > PROCEDURE | | Perform the inspection according to the diagnosis for LAN system. | Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B2603 EPB CONTROL |
3.CHECK BODY INTEGRATED UNIT. 1) Turn the ignition switch to OFF. 2) Replace with a power seat control module working properly. Power Seat System > REMOVAL 3) Turn the ignition switch to ON. 4) Read the DTC of the power seat control module using the Subaru Select Monitor. Read Diagnostic Trouble Code (DTC) | Is DTC B2603 displayed- (Current malfunction) | Replace the body integrated unit. Body Integrated Unit | There was an abnormality in power seat control module. |