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fuel level sensor a circuit range
There is a fault in the circuit range of the oil level sensor a. the fault code of the circuit of the fuel level sensor a in the fuel tank is that the oil pump is damaged or the oil pump sensor is damaged due to long-term use.
The position of the oil level sensor is in the oil tank. The failure of the oil level sensor will lead to the failure of the automobile oil gauge. The specific performance is as follows:
1.The scale of the oil gauge is fast and slow: the scale of the oil gauge is fast and slow, especially in the first half of the scale, it drops relatively slowly, but it almost doubles in the second half;
2.The scale of the oil gauge suddenly drops to zero: it is often seen that there are still two grids left on the oil gauge before driving, but the scale of the oil gauge will directly drop to zero after driving a certain distance;
3.The scale of the oil gauge rises: the pointer of the oil gauge stays at a certain position all the time. Some even drive for a certain distance, and the displayed value of the scale increases instead of decreasing.
If there is no output / communication failure, the power supply may be open circuit or the voltage may be too low; Sensor failure; For the three reasons of incorrect wiring, it is necessary to check whether the wiring is correct, whether the power supply voltage is greater than 10V when detecting the load, and whether the power supply current is 3~10ma. Carry out wiring, or switch the blue and yellow lines. If the above checks are normal or the current exceeds the normal range, it is a sensor fault.
If the output value does not change, it will show that the power supply voltage is abnormal. The solution is to check whether the power supply voltage is normal when the load is applied - power on the sensor again - whether there is serious interference around - check whether the upper and lower holes of the sensor are blocked - if not, it is a sensor fault.
If the output value error is large, the power supply voltage will be abnormal. It is necessary to check whether the power supply voltage is normal when the load is loaded - whether there is serious interference around - whether the upper and lower holes of the sensor are blocked. If not, it is a sensor fault. If the output value jumps up and down, the oil level will jump. The solution is to check whether the oil level is jumping - whether the power supply voltage is normal - whether there is interference around - if not, it is a sensor fault.
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