What does the C1122 engine speed signal fault mean?

[Elizabeth]

C1122 fault code indicates a malfunction in the right front body acceleration sensor. The following is an introduction to the acceleration sensor: 1. Definition: An acceleration sensor is an electronic device capable of measuring acceleration forces. Acceleration force refers to the force acting on an object during acceleration, similar to gravitational force, i.e., gravity. The acceleration force can be a constant. There are two types of accelerometers: one is the angular accelerometer, which is an improvement on the gyroscope (angular velocity sensor). 2. Principle: An acceleration sensor is a testing instrument used to convert the physical signal of acceleration into an electrical signal that is easy to measure. The differential capacitive force-balanced acceleration sensor converts the measured acceleration into changes in the capacitance of a capacitor. 3. Composition: It includes a silicon diaphragm, an upper cover, and a lower cover, with the diaphragm positioned between the upper and lower covers and bonded together; one-dimensional or two-dimensional nanomaterials, gold electrodes, and leads are distributed on the diaphragm, and wires are drawn out using a wire bonding process.