When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element. When a knock occurs, the sensor produces voltage signal. The ECM retards the ignition timing when knocking occurs. If the knocking disappears after retarding the ignition timing, the ECM will advance the ignition timing. This sequential control can improve engine power, torque and fuel economy.
Inspection
1.
Check the steering column for
damage and deformation.
2.
Check the joint bearing for damage
and wear.
3.
Check the tilt bracket for damage
and ...
Driver Airbag (DAB) Module and Clock Spring. Components and Components Location
Components
1. Driver Airbag (DAB)
2. Steering Wheel
3. Clock Spring
...
Trunk Lid Open Warning Light
This light remains on
unless the trunk lid is completely closed. ...