P0123 — Throttle / pedal position sensor A circuit — signal high

Code P0123 is a standard OBD-II diagnostic trouble code: Throttle / pedal position sensor A circuit — signal high.

In our record, P0123 is reported most often on Toyota, Dodge and Hyundai vehicles , against electrical and cruise control failure patterns , across 2006–2016 model years.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0123 across 5 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0123 5 patterns

2016 Toyota Camry

cruise control — Unintended acceleration with brake applied

2015 Dodge Dart

electrical — Unintended engine shutdown while driving

2012 Hyundai Veloster

electrical — Throttle/pedal position sensor fault after recall service

2008 Nissan Altima

electrical — Throttle response failure / electronic throttle control fault

2006 Volkswagen Passat

fuel system — Fuel pump failure causing engine stall

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →