Toyota Avalon engine quits while driving, battery and cables checked on Toyota Avalon

Some Toyota Avalon owners report experiencing engine stalls while driving, which may be attributed to several potential causes. These include electrical faults, possibly linked to the Engine Control Module (ECM) or the Controller Area Network (CAN) system. Additionally, a weak or dead 12v battery could prevent the engine from cranking or cause it to crank slowly. Some owners have also identified issues related to the drive shaft sensor, suggesting that a professional inspection is necessary for resolution. Furthermore, a clogged or damaged mass airflow sensor can disrupt engine performance, leading to stalling by providing inaccurate data about the air-fuel mixture. It is crucial for owners to have a thorough diagnostic check performed by a qualified mechanic to identify the specific cause of the engine quitting while driving.