DESCRIPTION This DTC is stored when a malfunction is detected in the electronically controlled brake system. Check the electronically controlled brake system when DTC P157800 is stored.
PROCEDURE
HINT: If DTC P157800 is output by the dynamic radar cruise control system, perform troubleshooting for the electronically controlled brake system. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Lighting System(for Gasoline Model Without Cornering Light): System Diagram
SYSTEM DIAGRAM HEADLIGHT ASSEMBLY CIRCUIT ...