What is the method to troubleshoot the ABS warning light?

[DeAdeline]

ABS warning light troubleshooting methods: 1. Check the fluid level in the brake master cylinder reservoir, if it is too low, add brake fluid to the normal level; 2. Perform fault self-diagnosis, and find the cause of the fault according to the read fault code; 3. If the fault code cannot be read, you can judge the approximate range of the fault according to the pattern of the ABS warning light; 4. Check the power supply circuit of the ABS ECU; 5. Check the grounding condition of the ABS ECU; 6. Check the electric return pump relay and its circuit, if the relay is faulty, it should be replaced, if the power supply circuit of the relay or the control circuit connected to the ECU is faulty, it needs to be repaired; 7. Check the electric return pump motor and its circuit.