P117B: owner reports and bulletins

Powertrain (manufacturer-specific). We haven't written the explanation for this code yet. Below is what owners and manufacturers have filed with NHTSA.

Got P117B 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

5 complaints filed with NHTSA mention P117B, 5 of them since 2015, across 5 different models. The component owners most often filed it under: fuel/propulsion system.

Manufacturer service bulletins that name P117B

1 technical service bulletins and manufacturer communications filed with NHTSA mention P117B, from 1 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • NISSAN ARMADA (2014), bulletin 10192285: IF YOU CONFIRM: The MIL is "ON" and one or both of the following DTCs are found stored in the ECM: * P117A * P117B AND * There are no drivability concerns. ACTION: * See this bulletin to confirm it applies and if so repr…

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.