What does ABS system malfunction mean?
1 Answers
Common ABS malfunctions and their causes are as follows: Malfunction 1: ABS warning light stays on constantly Cause 1: The ABS wheel speed sensor's sensing part is covered by mud, slurry or other contaminants, affecting the sensor's ability to detect corresponding vehicle speed signals Cause 2: Loose connections in system wiring or poor contact in ABS relays causing signal issues that lead to system failure. Malfunction 2: ABS warning light intermittently illuminates, but turns off during acceleration Cause: When multiple vehicle electrical devices are used, battery voltage drops below 10.5V. As engine speed increases and voltage rises, the ABS indicator turns off. The ABS system power supply voltage is too low, possibly due to poor terminal contact or grounding issues. Malfunction 3: ABS warning light stays on after engine start until engine is turned off Cause 1: Poor grounding connection in ABS hydraulic valve body; Cause 2: Poor electrical connector contact in ABS hydraulic valve body; Cause 3: ABS computer malfunction. Malfunction 4: ABS warning light illuminates during high-speed driving Cause: During high-speed driving, the ABS computer detects too large a difference between rear wheel speed and front wheel speed; Incorrect tire specifications or incorrect wheel rim specifications.
