Heated oxygen sensors
The heated oxygen sensors monitor the oxygen content of the exhaust gases. Readings are fed into a control module that continuously monitors engine functions and controls fuel injection. The ratio of fuel to air into the engine is continuously adjusted for efficient combustion to help reduce harmful emissions.
See also:
What is an Onboard Diagnostic System (OBD II)?
OBD II is part of your vehicle's computerized
engine management system. It stores diagnostic
information about your vehicle's emission
controls. It can light the Check Engine light
(MIL) if it ...
Ignition mode functions
The various ignition modes are accessed with the remote key in the ignition slot1.
...
Location of taillight bulbs
Brake lights (LEDs)
Brake light
Backup light
Turn signals
Rear fog light (driver’s side only)
NOTE
If an error message remains in the display after a faulty bulb has been replace ...