How to Measure the 4 Wires of an Idle Motor?
1 Answers
The measurement method for the idle motor involves using the resistance range of a multimeter to measure the resistance values of the four pins separately. Below is an introduction to the idle motor: 1. The idle motor is a component that controls the idle speed of a motor vehicle. When the engine runs without load, it is referred to as idling. The idle motor is primarily used to manage the vehicle's idle speed, aiming to adjust the idle based on the engine load during idling. The idle stepper motor is mounted on the throttle body and is controlled by the engine control unit to regulate the engine's idle speed. When the engine speed deviates from the idle speed, it is adjusted by the throttle valve, which controls the amount of air entering the intake manifold and is mechanically operated by the accelerator pedal cable. 2. The throttle body features a bypass air passage that supplies air during engine idling (when the throttle valve is closed). The pivot of the automatic idle motor extends into the bypass air passage, regulating the airflow through it. The engine control unit, based on input signals from various sensors, adjusts the engine's idle speed by moving the pivot of the automatic idle motor in and out of the bypass air passage. The automatic idle motor begins operation when the ignition key is turned to the 'on' position.
