Symptoms of ABS Pump or Controller Failure
The ABS pump consists of a base (to which brake lines are connected), an electric motor, and electromagnetic valves. It is a component of the entire ABS/ESP system. ESP, an extension of the ABS system, supports vehicle stability by monitoring wheel rotation speeds. It can detect potential skidding and help the car regain control. Regarding the ABS pump, it may suffer from damage to one of its components or a controller failure. The main symptoms of a malfunction include:
- The ABS warning light illuminates on the dashboard (it may turn on and off intermittently).
- The speedometer does not display the vehicle’s speed.
- The ABS system works sporadically.
In such cases, a comprehensive diagnostic check is necessary.
Repair or Replace the ABS Pump?
Some guides on ABS/ESP systems suggest that the ABS pump, as a component, should not be disassembled and that any malfunction requires replacing the entire unit with a new one. Modern vehicles are complex machines filled with numerous components, accessories, and interconnected electronics. Professional diagnostics can determine whether the issue, such as a blinking ABS warning light, is due to a minor fault in one of the system’s components or a problem with the controller, as previously mentioned.
In some cases, ABS pump repair is possible! However, if the ABS pump is significantly damaged and cannot be effectively repaired, this can be confirmed during diagnostics, and a replacement can be recommended. Purchasing the correct ABS pump is crucial for proper functionality.