P107B: 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 P107B 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

6 complaints filed with NHTSA mention P107B, 6 of them since 2015, across 3 different models. The component owners most often filed it under: fuel/propulsion system.

Most-reported models

VehicleComplaintsModel years reported
TOYOTA HIGHLANDER42019

Manufacturer service bulletins that name P107B

5 technical service bulletins and manufacturer communications filed with NHTSA mention P107B, from 3 makes. A bulletin means the manufacturer has documented a known cause or a fix procedure for that model. Examples:

  • LEXUS RX HYBRID (2018, 2019, 2020), bulletin 10176707: TSB: Some 2018 - 2020 model year RX 450h and RX 450hL vehicles may exhibit a MIL ON condition with the following Diagnostic Trouble Code (DTC): ?P107B ? (Fuel Rail Pressure Sensor "B" Circuit Range/Performance)
  • TOYOTA HIGHLANDER HYBRID (2018, 2019), bulletin 10176696: TSB: Some 2018 - 2019 model year Highlander Hybrid vehicles may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P107B (Fuel Rail Pressure Sensor "B" Circuit Range/Performance).
  • CADILLAC ATS (2016), bulletin 10075720: Some customers may comment that the message Stop/Start System Disabled appears on the DIC. During diagnosis, the technician may find DTC P1064, P1065, P1066, P1068, P1069, P1070, P1074, P1077, P1078, P1079, P107A, P107B,…

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.