This specific error is typically categorized as a . When a vehicle triggers this code, the Hybrid Control Module (VCM) detects that high voltage is potentially in contact with the chassis ground, which is a major safety risk.
Diagnosing P3180-97 requires specialized tools due to the high-voltage risks involved.
: 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. nissan p318097
: 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.
: 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 This specific error is typically categorized as a
: 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
While the code points to the battery system, the root cause may be an external component leaking current to the high-voltage lines: : One of the most documented causes for
: Tools like LeafSpy are used to check the voltage of individual cells to identify "crashing" modules.