C1241 — manufacturer-specific chassis code

C1241 is a manufacturer-specific chassis code: it is defined by the carmaker, not by the OBD-II standard, so the same code can mean different things on different brands. Below are the vehicles and failure patterns where owners report it, drawn from NHTSA complaints — the most reliable guide to what it means in practice.

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In our record, C1241 is reported only on Toyota vehicles , against brakes and electrical failure patterns , across 2006–2019 model years.

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 →