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Home >> Lexus >> 2002 >> SC 430 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Sun Roof/T-Top/Convertible Top >> Retractable Hardtop System - Diagnosis >> DTC B2547 Luggage Room J/B Ecu Communication Stop >> Circuit Description

Circuit Description

Receiving the multiplex signals (luggage courtesy information).

That the luggage courtesy switch is on is one of the conditions to permit the retractable hardtop operation.

If the operation switch is pressed without satisfying the above condition, the indicator will start blinking.

DTC DETECTING CONDITION

DTC No. DTC Detecting Condition Trouble Area
B2547 The multiplex signals from the luggage room J/B ECU stop for more than 3. 3 seconds.
  • Luggage room junction block assembly
  • Wire harness or connector