Nissan P155b-00

: If the wiring and battery are healthy, the current sensor may need replacement. You can find OEM Nissan parts through Nissan USA's parts portal.

Inspect the wiring harness for corrosion or breaks, especially near the connectors. nissan p155b-00

The injector can become blocked by crystallized DEF, leading to circuit issues. : If the wiring and battery are healthy,

Based on the diagnostic trouble code (DTC) format, is a manufacturer-specific code used by Nissan and Infiniti vehicles. The injector can become blocked by crystallized DEF,

Locate the AdBlue injector on the exhaust pipe. Check for signs of white "crystal" buildup. You can sometimes clean a blocked injector by soaking the tip in warm water to dissolve the urea crystals.

Ensure your battery is providing at least . Many electrical codes in Nissans are simply the result of a battery nearing the end of its life. 2. Inspect the Battery Current Sensor