Nissan Dtc U125c [updated] Jun 2026

: Excessive mud, ice, or even thick aftermarket bumper stickers over the sensor area can lead to communication "noise" interpreted as an error. Diagnostic and Repair Steps

Nissan’s “Corner Radar” consists of two compact 24 GHz or 77 GHz Doppler radar units mounted inside the rear bumper cover (left and right corners). Each radar is a smart sensor with its own microcontroller and CAN transceiver. nissan dtc u125c

A generic $20 code reader will show U125C, but you need a (Launch, Autel, or factory Consult III) to see which module is reporting the fault and live data. : Excessive mud, ice, or even thick aftermarket

When DTC U125C is set, it means the handshake failed because the ID stored in the BCM does not match the ID stored in the ECM. A generic $20 code reader will show U125C,

The cruise control system requires a reliable speed signal. If U125C is active, the cruise control will likely disengage or refuse to set.

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