Nissan U1025-00 May 2026

The Nissan diagnostic trouble code primarily indicates a CAN communication failure between the Engine Control Module (ECM) and the Turbocharger Electronic Actuator

Main Issue

: A failure in the CAN (Controller Area Network) communication line between the Engine Control Module (ECM) and the turbocharger actuator. nissan u1025-00

Step 4: Isolate the Module

If the network checks out, the mechanic will disconnect modules one by one (ABS, BCM, TCM, etc.) to see when the network resistance returns to normal. The module that fixes the resistance when unplugged is the culprit. The Nissan diagnostic trouble code primarily indicates a

"CAN COMM CIRCUIT-ECM/BCM/TCM."

The official definition of U1025-00 is:

U1025-00

If you’ve plugged a scan tool into your Nissan Rogue, Altima, Sentra, or Pathfinder and seen the code , you’ve probably felt a moment of confusion. Unlike a P0300 (random misfire) or P0420 (catalyst efficiency), this code doesn’t point to a specific engine part. "CAN COMM CIRCUIT-ECM/BCM/TCM

Ellie nodded and slid into the driver’s seat. She didn’t start the engine. She simply plugged her high-end scanner into the OBD-II port beneath the steering wheel. The screen flickered to life, running through the CAN (Controller Area Network) bus check.