Nissan P318097 May 2026

The code (often colloquially referred to as "Nissan P318097") is a critical diagnostic trouble code (DTC) primarily associated with the high-voltage (HV) battery systems in Nissan e-POWER and Nissan Leaf electric/hybrid vehicles. Understanding Diagnostic Code P3180-97

: Common symptoms include a "No Start" or "No Ready" condition, the car entering a "Reduced Power" or "Limp" mode, and multiple dash warnings related to the EV/HV system. nissan p318097

: One of the most documented causes for P3180-97 in Nissan Note e-POWER models is a failing air conditioning compressor. Because the compressor is powered by the high-voltage battery, an internal short can leak current, triggering isolation faults like P3180-97 and P0AA6. The code (often colloquially referred to as "Nissan

: If a leak is detected, components like the inverter, HV heater, and A/C compressor are disconnected one by one to see which one clears the fault. Because the compressor is powered by the high-voltage

Diagnosing P3180-97 requires specialized tools due to the high-voltage risks involved.

: If a specific part—like the A/C compressor—is found to be leaking current, it must be replaced to restore the system's insulation integrity. Maintenance & Parts nissan note epower repair part 1

: Dirt or moisture in HV connectors (such as the charging port or inverter plugs) can cause insulation resistance to drop below the safety threshold. Diagnostic and Repair Procedures