C1241 code in owner complaints

Code C1241 is named in 26 US owner complaints, 1 of them (4%) after a crash. Models: 14, model years 1997–2019.

There is little data for this code or its meaning is ambiguous, so this page is not indexed.

What the code means

This is a manufacturer-specific code: the meaning depends on the make and sometimes on the year.

How to read C1241: the letter C means chassis (brakes, ABS, steering, suspension); the second digit 1 marks a manufacturer code whose meaning is set by the make; the last three characters 241 identify the specific fault.

ABS/ESC codes: wheel speed sensors, the ABS hydraulic unit and pump, brake booster, pressure and yaw sensors. A hit to a wheel or suspension often damages the wheel speed sensor or its wiring, so on a damaged car this code is a reason to inspect the hub, knuckle and control arms, not just swap the sensor.

Key figures

Complaints with this code: 26
after a crash: 1 (4%)
Models: 14
Model years: 1997–2019

Which models and years

Models whose owners name this code (14). Years link to the model year problems page.

Model	Years	Complaints
Toyota Highlander Hybrid	2006, 2007, 2008	5
Toyota Highlander	2008, 2009, 2011, 2018	4
Toyota Sequoia	2002, 2003	4
Toyota Prius	2010, 2012, 2013	3
Cadillac Deville	1997	1
Lexus HS	2010	1
Lexus LS	2013	1
Lexus LS460	2009	1
Toyota 4runner	2006	1
Toyota Prius V	2013	1
Toyota RAV4	2019	1
Toyota Tacoma	2013	1
Toyota Tundra	2013	1
Toyota Venza	2013	1

Components named together with the code

Component as the owner filed it (one complaint can list several).

Service brakes 21
Electrical system 5
Electronic stability control 3
Powertrain 3
Fuel/propulsion system 2
Steering 2
Vehicle speed control 2
Air bags 1

Complaints by model year

1997 1
2002 2
2003 2
2006 4
2007 1
2008 2
2009 2
2010 2
2011 1
2012 1
2013 6
2018 1
2019 1

What to do if an auction car has this code

Inspect the wheel and suspension on the impact side: the wheel speed sensor is often damaged together with the hub or knuckle.
Check whether the ABS and ESC lights stay on after start-up.
After replacing sensors or the hydraulic unit, bleeding and scan tool adaptation may be required.

What owners report

Excerpts of owner complaints in the original wording. Owner statements not verified by the regulator; personal data removed.

On hwy vehicle wouldn't stop or steer, lost all power and control. Came to stop in the median, had to have towed, cause is listed as :173600410, C1201, C1241, C1441 toyota of irving called to inform me that they were not able to recreate the problem and that the vehicle is operating as designed by the manufacturer.
Toyota Venza 2013 · 2017-12 · crash
This pump activity occurred without brake warning lights and without diagnostic trouble codes at that moment. Prior to actuator replacement, the vehicle had repeatedly set brake system codes including: C1391 â Accumulator internal leak C1241 â Low battery voltage caused by pump overrun C1319 â Brake control…
Lexus LS 2013 · 2026-10
The vehicle was not driven after the failure and was transported to a Toyota dealership for diagnosis. The dealer confirmed a brake-system fault and recorded diagnostic trouble codes C1241, C1252, C1253, and C1256.
Toyota Prius 2013 · 2026-10

Related codes

Sources: public official US data (owner complaints) and the SAE J2012 standard. Complaints are owner statements not verified by the regulator. A code from a complaint does not replace a scan tool diagnosis. Data updated 2026-11-10.