Nissan U1025-00 [portable] May 2026

In some cases, power returns after the engine warms up or following a restart, only to fail again shortly after.

The engine may bog down or refuse to rev beyond 2,000 RPM. nissan u1025-00

The MIL (Malfunction Indicator Lamp) will typically illuminate, though it may occasionally be intermittent. In some cases, power returns after the engine

This is a communication-based Diagnostic Trouble Code (DTC) where the Engine Control Module (ECM) loses contact with the electronic turbocharger actuator. Primary Symptoms This is a communication-based Diagnostic Trouble Code (DTC)

When this code triggers, the vehicle usually enters a "Limp Home" mode to protect the engine. Common symptoms include:

In Nissan vehicles, specifically those equipped with the diesel engine (found in the Navara D40 , Pathfinder R51 , and NP300 ), the fault code U1025-00 indicates a Turbocharger Boost Communication Line failure.