The code is a manufacturer-specific diagnostic trouble code (DTC) for Nissan vehicles. In plain English, this code translates to:
: If the wiring and battery are confirmed good, the sensor assembly (often integrated into the battery cable) usually needs replacement. YarikSteel.RU or a specific part number for the sensor? NISSAN B13 and N14 Official Factory Workshop Manual Vol 1
If your Nissan has the auto start-stop feature, it may be disabled because the system can't verify the battery's health.
The P155B-00 code can be triggered by various factors, including:
The diagnostic trouble code (DTC) in Nissan vehicles is a manufacturer-specific code primarily associated with the variable geometry turbocharger (VGT) control system . Specifically, it indicates a performance issue or a "rationality" fault with the turbocharger boost control actuator. Technical Overview
⚠️ Do not attempt to repair the IPM internally — the hybrid inverter contains high-voltage (up to 650V DC) and can cause serious injury or death. Always de-energize the high-voltage system before any work.