Toyota 2015 Corolla Owner's Manual page 497

If the engine will not start
If the engine will not start even though correct starting proce-
dures are being followed ( P. 161, 164), consider each of the fol-
lowing points:
The engine will not start even though the starter motor operates
normally.
One of the following may be the cause of the problem:
● There may not be sufficient fuel in the vehicle's tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine again following correct starting procedures.
( P. 164)
● There may be a malfunction in the engine immobilizer system.
( P. 66)
The starter motor turns over slowly, the interior lights and head-
lights 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:
● The battery may be discharged. ( P. 531)
● The battery terminal connections may be loose or corroded.
The starter motor does not turn over (vehicles with a smart key
system)
The engine starting system may be malfunctioning due to an electrical
problem such as electronic key battery depletion or a blown fuse.
However, an interim measure is available to start the engine.
( P. 526)
COROLLA_TMMMS_TMMC_U (OM12F00U)
8-2. Steps to take in an emergency
525
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