Brake Control Power Supply: Inspection

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT BRAKE CONTROL POWER SUPPLY ASSEMBLY
1. Inspect the brake control power supply assembly. If any of the following occurs, replace with a new brake control power supply assembly:
  - The surface of the brake control power supply assembly is cracked, dented, or chipped off.
  - The connector is scratched, cracked, or damaged.
  - The brake control power supply assembly has been dropped.