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chevy speedometer cable replacement
Step 1: Select the harness consistent with the vehicle model
Before replacing the harness, the first thing to do is to prepare the materials. In order to ensure that the new harness will not be rejected by the original model, the harness consistent with the original model should be selected. If you are not sure, you can compare the new harness with the old harness to see whether the size, connector, wire color, etc. are consistent.
Step 2: formally replace the wire harness
Install the new electric wire harness in the correct position. It should be noted that the connector or socket of the electrical equipment in the car should correspond to the position on the harness.
Step 3: Check the circuit after replacement
After the new harness is replaced, check the circuit, mainly to see whether the harness and electrical equipment are connected correctly. After checking, test the power on condition.
And about the sensor:
1. The speed sensor is located on the gearbox at the right rear side of the engine and is generally fixed with an M8 screw;
2. The speed sensor detects the speed of the electronically controlled vehicle, and the control computer uses this input signal to control engine idling, torque converter locking of the automatic transmission, automatic transmission shifting, opening and closing of the engine cooling fan, cruise speed control and other functions;
3. The output signal of the vehicle speed sensor can be magnetoelectric AC signal, Hall type digital signal or photoelectric digital signal. The vehicle speed sensor is usually installed in the drive axle housing or transmission housing, and the vehicle speed sensor signal wire is usually installed in the shielding jacket;
4. This is to eliminate electromagnetic and radio frequency interference generated by high-voltage electric wire, car phone or other electronic equipment, to ensure that electronic communication will not be interrupted, and to prevent poor driving performance or other problems. Magnetoelectric and photoelectric sensors are the two most widely used speed sensors in automobiles;
5. Magnetoelectric sensors are widely used in various vehicles in Europe, North America and Asia to control vehicle speed (VSS), crankshaft angle (CKP) and camshaft angle (CMP), and also to sense the speed and position signals of other rotating parts, such as the compressor clutch.
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