What is the issue with fault code C003A?
1 Answers
C003A fault code, applicable to all automobile manufacturers, means right rear wheel speed sensor error. In the ABS anti-lock braking system, the function of the wheel speed sensor is to transmit the speed of the wheel to the control module in the form of an electrical signal to help the system understand when the tire is about to lock. Most wheel speed sensors are installed on each tire, but some small trucks have wheel speed sensors installed in the differential. Below is an introduction to the principle of automobile fault codes: 1. The vehicle fault self-inspection terminal can diagnose the status of sensors and actuators in the electronic control system and whether the ECU is working normally. If not, it will transmit a fault code. 2. When a circuit in the electronic control system produces a signal that exceeds the specified range, the fault information reflected by that circuit and related sensors will be stored in the ECU's internal memory in the form of a fault code. Maintenance personnel can use the diagnostic tool to read the fault code and display it. 3. Fault codes are mandatory conditions in the control logic to determine whether certain functions meet the control conditions. If not, the function will be canceled or restricted, and the driver will be alerted. For important signals, a backup signal will be provided as a substitute while the function is restricted.
