Toyota Corolla (E170) 2014–2019 Owners Manual / For safety and security
Toyota Corolla (E170): For safety and security
- For safe use
- Before driving
- For safety drive
- Seat belts
- SRS airbags
- Front passenger occupant classification system
- Safety information for children
- Child restraint systems
- Installing child restraints
- Exhaust gas precautions
- Theft deterrent system
Other materials:
Circuit description
The ecm compares the two waveforms of the heated oxygen sensors located
before and after the catalyst
to determine whether or not the catalyst performance has deteriorated.
Air–fuel ratio feedback compensation keeps the waveform of the heated oxygen
sensor in front of the catalyst
alterna ...
Brake Hold
The brake hold system
keeps the brake applied
when the shift lever is in D,
B (vehicles without paddle
shift switches), M (vehicles
with paddle shift switches)
or N with the system on and
the brake pedal has been
depressed to stop the vehicle.
The system releases the
brake when the accelerator
peda ...
Circuit description
The actuator motor is operated by signals from the cruise control ecu assy.
Acceleration and deceleration
signals are transmitted by changes in the duty ratio (see below).
Duty ratio:
the duty ratio is the ratio of the period of continuity in one cycle. For
example, if a is the period of co ...


