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DTC Troubleshooting: U0129-00 (Radar Vision Unit) (2025): Notes

DTC U0129-00 : Lost Communication With the Electric Servo Brake Control Unit (Radar Vision Unit)

How to use this service information .

NOTICE:

Before you troubleshoot, review the How to Troubleshoot .

NOTE:

DTC may be stored if the electric servo brake control unit does not start normally.
DTC may be stored due to the power/ground circuit failure of the electric servo brake control unit. Before this troubleshooting, check the power/ground circuit of the electric servo brake control unit first.