Fault: a Tuan car is equipped with 2. OL engine and manual transmission. The instrument shows the symbol of the water jet motor, indicating that the motor is defective.

Troubleshooting and Troubleshooting: the vehicle''s bulbs are directly controlled by the vehicular network control unit J519. The vehicle network control unit J519 monitors the bulb.

(1) After the automobile sprinkler motor is connected, each bulb will be connected 500m, with a small amount of current four times. The onboard network control unit J519 can identify whether the bulb is damaged by the current value.

(2) Semiconductor components installed in the vehicle network control unit J519 are used to control the bulbs, which are used to identify whether there is overload, short circuit or circuit break in the motor.

In these two monitoring modes, if the fault of automobile sprinkler motor is identified, it will leave a record in the fault memory, and display in the instrument that the replaced bulb can be identified by monitoring, and delete the fault record, turn off the display.