How to deal with the alarm of the brake shoe of the rear eight-wheel axle of Haowo

Insufficient brake fluid. Check whether the brake oil pot is short of oil. If you lack oil, add brake oil, and the brake shoes will wear to the limit. Remove the tire, check the brake pad thickness with measuring tools, and replace the brake pad if necessary.

The circuit is short-circuited Use multimeter to measure whether the four-wheel brake pad alarm line, brake oil level sensor line and hand brake switch line are short-circuited. If the line is short-circuited, replace the sensor and repair the line.