Nissan — P155b-00

: Is a sub-type indicator often used in modern OBD-II systems to denote a "general failure" or no specific sub-type information available. Common Symptoms

: 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. nissan p155b-00

: Refers to the specific circuit malfunction of the battery current sensor. : Is a sub-type indicator often used in

If you encounter this code, following these steps can help identify the root cause: : Refers to the specific circuit malfunction of

: The alternator may run more than necessary, putting extra load on the engine.

: Inspect the small connector going to the negative battery terminal. Ensure it is firmly seated and the wires are not damaged.

: On newer models, this system may be disabled because the ECM cannot accurately verify the battery's state of charge. Potential Causes