Nissan Dtc U125c

If you install a new BCM without programming it, or if the data in the BCM becomes corrupted, the ECM looks at the BCM and says, "You are not the computer that belongs in this car," and triggers code U125C.

Once you fix the code, take these steps to prevent recurrence: nissan dtc u125c

Ensure no aftermarket electronics (like dashcams or GPS trackers) are interfering with the vehicle's communication lines . If you install a new BCM without programming

The most immediate symptom is the turning on. In many Nissans, the Check Engine Light (CEL) will also illuminate, though sometimes it remains off while the code stores in history. nissan dtc u125c

You should diagnose and repair U125C within 1–2 weeks of its appearance.