Circuit inspection
Basic inspectionRear window and outside rear view mirror defoggers
These features are used to defog the rear window, and to
remove raindrops, dew and frost from the outside rear view mirrors
(if equipped).
Vehicles with a manual air conditioning system
On/off
The defoggers will automatically
turn off after approximately 15 minutes.
Vehicles with an au ...
Throttle actuator control system
Description
The throttle actuator is operated by the ecm, and opens and closes the
throttle valve using gears. The
opening angle of the throttle valve is detected by the throttle position (tp)
sensor, which is mounted on
the throttle body. The tp sensor provides feedback to the ecm in ord ...
Catalyst system efficiency below threshold (bank 1)
Monitor description
The ecm uses sensors mounted in front of and behind the three-way catalytic
converter (twc) to
monitor its efficiency.
The first sensor, the air-fuel ratio (a/f) sensor, sends pre-catalyst
information to the ecm. The second
sensor, the heated oxygen (ho2) sensor, se ...