B1500: owner reports and bulletins

Body. We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got B1500 on your scanner? Tell the mechanic your year, make, model and any symptoms and you'll get the likely cause and what to check first. Ask about this code.

What owners report to NHTSA

8 complaints filed with NHTSA mention B1500, 1 of them since 2015, across 5 different models. The component owners most often filed it under: structure:frame and members.

Most-reported models

VehicleComplaintsModel years reported
DODGE RAM VAN41998, 1999, 2000, 2001

Manufacturer service bulletins that name B1500

3 technical service bulletins and manufacturer communications filed with NHTSA mention B1500, from 1 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • SUBARU IMPREZA (2012, 2013, 2014, 2015), bulletin 10084125: THIS SERVICE INFORMATION BULLETIN SERVES AS A REMINDER TO ALWAYS FOLLOW THE PROPER PROCEDURES WHEN DIAGNOSIS OF A DTC B1500 LEADS TO REPLACEMENT OF A FAULTY MAIN AND / OR SUB FUEL LEVEL SENSOR.
  • SUBARU FORESTER (2014, 2015), bulletin 10067877: DIAGNOSTICS FOR DTC B1500 AND U1500
  • SUBARU XV CROSSTREK HYBRID (2014, 2015), bulletin 10090189: DIAGNOSTICS FOR DTC B1500 AND U1500

Sources: NHTSA Office of Defects Investigation complaint database and manufacturer communications file, snapshots September 2026. A complaint or bulletin that mentions a code is a report about that vehicle, not a statement that the code has one cause.