What is the fault when both the engine and ABS lights are on?

[ChaseDella]

The engine malfunction light being on requires retrieving the fault code at a 4S shop, followed by troubleshooting and eliminating the fault. The reasons for the ABS light being on are as follows: Reason 1: The sensing part of the ABS vehicle speed sensor is covered by dirt, mud, or other contaminants, affecting the sensor's ability to detect the corresponding vehicle speed signal. This prevents the ABS computer from determining the vehicle speed and the wheel slip rate, thus failing to issue appropriate commands to adjust braking. Solution: Clean the dirt from the vehicle speed sensor and adjust the gap between the sensor and the signal gear ring to restore normal operation. Reason 2: Poor signal quality due to loose connections between system lines or poor contact of the ABS relay can cause system faults. The most common issue is a loose connection of the vehicle speed sensor wire, which will also display as a poor vehicle speed sensor signal in the ABS computer's fault memory. Solution: Check the line connections and reconnect any loose parts.