Poor wiring connections, specifically in the CAN bus network or around the battery, can cause data corruption that triggers this code.
The battery may die quickly if the current sensor is not informing the alternator to charge properly. Diagnosis and Troubleshooting
The OBD-II scanner often reports this as a PCM error or an invalid signal from a component managed by the powertrain network. nissan p155b00
The most frequent cause is a faulty battery current sensor, which manages the alternator's output to the battery.
If you can provide the and year (e.g., 2017 Rogue), I can give you a more accurate diagnosis. Does the check engine light blink or stay solid? Have you noticed any issues with the battery recently? Nissan Navara Nox Sensor Diagnosis Poor wiring connections, specifically in the CAN bus
Because this is a specific Nissan code, professional diagnostic equipment is recommended. However, you can check the following:
If the alternator is not charging properly, the system can enter a protective state, triggering this code. Symptoms of a P155B00 Code The most frequent cause is a faulty battery
Ensure the battery is in good health and has at least 12.6V12.6 cap V when the car is off.
The vehicle may enter a "safe" mode where power is restricted to protect the powertrain.
A weak battery or a battery that is not holding a proper charge can cause fluctuating voltage that confuses the ECM.