Toyota Tacoma secondary air system issue with ABS and traction control lights illuminated on Toyota Tacoma

Some Toyota Tacoma owners report experiencing issues when the ABS and traction control lights illuminate, indicating potential problems with the anti-lock braking system (ABS) or traction control system. These issues may arise from malfunctioning wheel speed sensors, low brake fluid levels, blown fuses, or faulty relays. Additionally, if the ABS system fails its self-diagnostic cycle, the ABS light will activate. Some owners also note that the traction control light may flash during hard cornering when the system engages outside braking. Since both systems share components, a failure in one can impact the other. Furthermore, factors like incline can cause brake fluid to move away from sensors, triggering multiple warning lights simultaneously. It is crucial for owners to resolve error codes, such as C1201, to maintain the proper functioning of the ABS and vehicle stability control (VSC) systems. Prompt attention to these issues is essential for ensuring the safety and reliability of the vehicle.