C1140 and C1140 ACTUATOR RLY are diagnostic trouble codes (DTCs) that can be found in the onboard diagnostic (OBD) system of some Lexus vehicles.
C1140 refers to a fault in the ABS hydraulic circuit. The specific fault code can vary depending on the make and model of the vehicle, but in general, it means that there is a problem with the hydraulic brake system that is preventing the ABS from working properly. This can be caused by a malfunctioning hydraulic pump or valve, a leak in the brake system, or a malfunctioning ABS module.
C1140 ACTUATOR RLY refers to a fault in the ABS actuator relay circuit. This code is specific to the Lexus LS 430 model and indicates that there is a problem with the ABS actuator relay. The relay is responsible for controlling the ABS hydraulic pressure and if it fails, the ABS system will not function properly. This can be caused by a faulty relay or a problem with the wiring or connections to the relay.
If you see these codes on your Lexus vehicle, it is important to have them diagnosed and repaired by a qualified technician. They will be able to use specialized diagnostic equipment to identify the root cause of the problem and make any necessary repairs to ensure that your vehicle's ABS system is working properly.
C1140 and C1140 ACTUATOR RLY are diagnostic trouble codes that indicate a problem with the ABS system in a Lexus vehicle. These codes do not provide instructions on how to fix the problem, but rather serve as a starting point for diagnosing the issue.
If you are experiencing these codes, it is recommended that you take your vehicle to a qualified technician who can diagnose the problem using specialized diagnostic equipment. They will be able to identify the root cause of the problem and make any necessary repairs to ensure that your vehicle's ABS system is functioning properly.
Attempting to replace or repair the ABS system without proper training and equipment can be dangerous, as it is a critical safety system in your vehicle. It is important to have a professional handle any repairs to ensure that the system is functioning properly and keeping you safe while driving.