What does it mean when a Geely Emgrand displays a sensor malfunction?
1 Answers
For a Geely Emgrand sensor malfunction, replacement or repair according to the relevant service manual is required. Automotive sensors are input devices for the vehicle's computer system. They convert various operational conditions of the car, such as speed, temperature of various mediums, and engine operating conditions, into electrical signals for the computer, enabling the engine to operate in its optimal state. The testing methods for automotive sensors are as follows: 1. Unplug the connector, turn the key to the second position, and use a voltmeter to measure and confirm that the power line has voltage output. 2. Use the meter to identify the ground wire. With the voltage setting, connect one probe to the confirmed power line and the other probe to the remaining two wires. The wire that shows voltage is the ground wire, and the remaining one is the signal wire. 3. Now, turn off the key, disconnect the signal wire, plug back the connector, start the engine, and measure the voltage between the signal wire and the ground wire. There should be a signal voltage output, which should be less than the supply voltage. If there is no voltage, the sensor is likely faulty. 4. While performing the above steps, also check the condition of the signal teeth on the camshaft, ensure there are no obstructions between the camshaft sensor and the signal teeth, and verify that the gap is normal.
