C1241 — OBD-II trouble code

A chassis OBD-II trouble code. Below are the vehicles and failure patterns where owners report it, drawn from NHTSA complaints.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite C1241 across 7 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 C1241 7 patterns

2019 Toyota RAV4

powertrain — Transmission slipping and loss of acceleration

2014 Toyota Prius

brakes — Brake booster/accumulator pressure loss

2013 Toyota Tundra

electrical — Secondary Air Injection (SAI) Pump System Failure

2013 Toyota Prius V

electrical — Power Inverter Failure

2011 Toyota Highlander

brakes — Complete brake failure with unintended acceleration

2009 Toyota Highlander

brakes — ABS Actuator and Brake Booster Pump Assembly Internal Leak

2006 Toyota 4Runner

suspension — Excessive vibration and handling instability

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 →