Nissan P155b-00 Jun 2026

Do not just replace the sensor. Perform systematic diagnostics. Here are the most common root causes:

You may or may not notice drivability issues. Common complaints include:

Check Nissan TSB NTB20-045 (for Altima) or ITB20-015 (for Infiniti). If your vehicle falls within the affected VIN range, a dealer can reflash the ECM for 0.5–1.0 hours of labor. This resolves false P155B-00 codes caused by cold-start rationality logic errors. nissan p155b-00

The “-00” suffix indicates no additional fault type specified — standard OBD-II diagnostic.

If you've encountered the P155B-00 code in your Nissan vehicle, there are several steps you can take to rectify the issue: Do not just replace the sensor

Labor rates assumed $120–$180/hour.

A short circuit or corrosion in the wire harness that controls the radar sensor is a common culprit, especially if the car has a tow hitch installed and the wiring was not sealed properly. Common complaints include: Check Nissan TSB NTB20-045 (for

The indicates an Intelligent Cruise Control (ICC) Command Value Error . It is often accompanied by other codes related to the radar sensor or brake module.