B2544

CONVERTIBLE: RETRACTABLE HARDTOP SYSTEM: B2544: Transponder Key ECU Communication Stop

DTC B2544 - Transponder Key ECU Communication Stop

DESCRIPTION

The sliding roof control ECU receives the multiplex signals (ignition switch position).
Since the sliding roof control ECU inputs the ignition signal directly, it can recognize the ignition switch position using either the ignition signal or multiplex signals.






WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - TRANSPONDER KEY ECU)
(a) Check the wire harness B1214.
NG -- REPAIR OR REPLACE HARNESS AND CONNECTOR
OK -- REPLACE TRANSPONDER KEY ECU