: Mounted on the negative battery terminal, this sensor reads voltage, current, and temperature. If it fails, the ECM operates blindly.
The vehicle may significantly reduce power to protect the engine.
The vehicle may feel sluggish, struggle to accelerate, or cap its RPMs.
Leo had taught her to solder when they rebuilt a vintage stereo. “Flux is your friend,” he’d said. “And patience is the only tool you can’t buy.” nissan p155b-00
When the P155B-00 code is triggered, you may notice one or more of the following symptoms:
Properly diagnosing the P155B-00 code involves a logical process to pinpoint the exact cause. Nissan's official confirmation procedure provides a reliable starting point.
To help narrow down the diagnosis, what of Nissan are you working on? Additionally, AI responses may include mistakes. Learn more Share public link : Mounted on the negative battery terminal, this
Once your diagnostics highlight the failure point, proceed with the corresponding fix:
The Check Engine light will stay on.
The suffix is a sub-fault modifier used in advanced OBD-II diagnostics. It denotes that there is no sub-type information available , meaning the ECM has detected a general failure within that specific circuit or system without pinpointing whether it is strictly a short to ground, an open circuit, or a voltage spike. The Role of the Affected Systems The vehicle may feel sluggish, struggle to accelerate,
: This system monitors the battery's state of charge, voltage, and current. The Engine Control Module (ECM) triggers this code when the measured battery voltage or the charging system's output goes above or falls below the specific expected thresholds for a set period (usually around 20 seconds or more). Mitsubishi Tech Info ⚠️ Common Causes Failing or Discharged Battery
ECM battery voltage falls below or exceeds normal thresholds
The P155B-00 code refers to a fault in the throttle control system, specifically related to the electronic throttle control (ETC) system. The "00" at the end indicates that it's a generic OBD-II code.