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Home >> Lexus >> 2008 >> SC 430 >> Repair and Diagnosis >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Convertible >> Retractable Hardtop System >> DTC B2544 Transponder Key ECU Communication Stop >> Inspection Procedure

Inspection Procedure

  1. CHECK WIRE HARNESS (SLIDING ROOF CONTROL ECU - TRANSPONDER KEY ECU) 
    1. Check the wire harness (see DTC B1214 SHORT TO B+ IN DOOR SYSTEM COMMUNICATION BUS MALFUNCTION; DTC B1215 SHORT TO GND IN DOOR SYSTEM COMMUNICATION BUS MALFUNCTION ).

    NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

    OK: REPLACE TRANSPONDER KEY ECU