2011 Toyota Avalon Owners Manual - Page 511

5 -2 . St e ps t o t a k e in a n e m e rge nc y I f t he e ngine w ill not st a r t If the engine will not start even though correct starting procedures are being followed (→P. 149, P. 153), consider each of the following points. n The engine will not start even when the starter motor operates normally One of the following may be the cause of the problem. l There may not be sufficient fuel in the vehicle's tank. Add fuel to the vehicle. l The engine may be flooded. Try to restart the engine once more following correct starting procedures. (→P. 149) l There may be a malfunction in the engine immobilizer system. (→P. 91) n The starter motor turns over slowly, the interior lights and headlights are dim, or the horn does not sound or sounds at a low volume One of the following may be the cause of the problem. l The battery may be discharged. (→P. 496) l The battery terminal connections may be loose or corroded. n The starter motor does not turn over (vehicles with smart key system). The engine starting system may be malfunctioning due to an electrical problem such as an open circuit or a blown fuse. However, an interim measure is available to start the engine. (→P. 149) 5 When trouble arises 489 AVALON_U (OM41428U)