What is Lexus code C1391?

The Lexus code C1391 refers to an issue with the ABS (Anti-lock Braking System) actuator. Specifically, it indicates an abnormal leak in the accumulator, which is a component of the ABS system . The accumulator is responsible for storing hydraulic pressure that is used to operate the ABS system. When there is an abnormal leak in the accumulator, it can lead to various symptoms such as the ABS warning light illuminating on the instrument panel, a check hybrid system message, or a check AWD message.
To diagnose the C1391 code, it typically requires 1.0 hour of labor at an auto repair shop. The specific diagnosis time and labor rates can vary depending on factors such as the location, make and model of the vehicle, and even the engine type . It is common for most auto repair shops to charge between $75 and $150 per hour for diagnosis and repair .
To fix the C1391 code, it is often necessary to replace the ABS actuator and control unit. This is because the code usually indicates internal leaks within the ABS control unit, which cannot be easily repaired. It is important to note that this information is based on the search results provided and should be verified with a qualified mechanic or Lexus dealership for your specific vehicle.
Please let me know if there’s anything else I can help you with!

What is the code c1391 on a 2007 Lexus LS 460?

That is caused by a leak in the hydraulic brake actuator. The brake actuator part number listed in this service bulletin costs about $1700.

What is a brake actuator on a car?

Brake actuators and diaphragm actuators play a key role in the braking system. Their purpose is to convert the pressure exerted on the brake pedal into braking force. Wheel brake actuators, for instance in drum brakes, transfer the pressure built up by the master brake actuator in the braking system to the brake shoes.

What happens when brake actuator fails?

Several problems might occur in a brake actuator: Uneven Braking: If one side of your vehicle seems to brake more forcefully than the other, a faulty brake actuator might be the cause. Brake Warning Light: A warning light on your dashboard can indicate a problem with the brake actuator.

How much does it cost to replace a faulty actuator?

You might spend around $40 or more than $400 for the part, depending on your vehicle’s make and model as well as which door you need to change it in. Here’s what you need to know about lock actuators, how to identify a bad door lock actuator, and the steps to change it.

Where is the brake actuator assembly?

It’s usually on the left side of the engine bay.

Can you drive a car with a bad actuator?

Although a faulty blend door actuator can prevent your climate control system from working properly, the problem will not stop your vehicle from running well. If you can stand the discomfort of the climate control not working correctly, there’s no reason why you can’t continue driving with a faulty blend door actuator.

What is the brake warning on a Lexus?

BRAKE SYSTEM WARNING LIGHT (WARNING BUZZER)*
This light also comes on when the parking brake is not released. If the light turns off after the parking brake is fully released the system is operating normally. Immediately stop the vehicle in a safe place and contact your Lexus dealer.

What does the brake actuator do?

Brake actuators and diaphragm actuators play a key role in the braking system. Their purpose is to convert the pressure exerted on the brake pedal into braking force. Wheel brake actuators, for instance in drum brakes, transfer the pressure built up by the master brake actuator in the braking system to the brake shoes.

What does code c1391 mean?

Common cause of this code is an internal brake fluid leak of the brake actuator assembly. Ask Your Own Toyota Question.

Can I drive my car with the brake warning light on?

Again, it is important that you do not continue driving and ignore the brake light, this can cause more damage to the braking system and be very dangerous.