Toyota Corolla (E170) 2014–2019 Owners Manual / When trouble arises / Steps to take in an emergency / If a warning light turns on or a warning buzzer sounds
Toyota Corolla (E170): If a warning light turns on or a warning buzzer sounds
Calmly perform the following actions if any of the warning lights comes on or flashes. If a light comes on or flashes, but then goes off, this does not necessarily indicate a malfunction in the system. However, if this continues to occur, have the vehicle inspected by your Toyota dealer.
- Warning light and warning buzzer list
- Follow the correction procedures. (vehicles with a smart key system and with a drive monitor display)
Other materials:
If your vehicle needs to be towed
If towing is necessary, we
recommend having your
vehicle towed by your Toyota
dealer or commercial
towing service, using a
wheel-lift type truck or flatbed
truck.
Use a safety chain system
for all towing, and abide by
all state/provincial and local
laws.
WARNING
Observe the following precautions.
...
Inspection procedure
1 Inspect stop lamp switch assy
Check that the stop light lights up when brake pedal is depressed and
turns off when the brake pedal
is released.
2 Inspect skid control ecu terminal voltage(stp terminal)
Disconnect skid control ecu connector.
measure voltage between termina ...
Inspection procedure
Hint:
read freeze frame data using the hand–held tester or the obd ii scan tool.
Freeze frame data records the
engine conditions when a malfunction is detected. When troubleshooting, it is
useful for determining whether
the vehicle was running or stopped, the engine was warmed up or not, th ...


