Purpose/Function
Detects ion generation in the combustion chamber for detecting pre-ignition.
Detects ions which occur due to fuel combustion as current by applying bias voltage to the spark plug, which is amplified in the ignition coil internal circuit and input to the PCM.
Construction
Built into the ignition coil.

Operation
Accumulates the secondary current of the ignition coil in bias condenser (1) and detects ion current (2) by applying the bias voltage to the spark plug.
Pulls in current (4) increased by current amplification circuit (3) to the ignition coil from the PCM.
The PCM measures/converts the current sent to the ignition coil and monitors.

Ion generation mechanism
Ions are generated based on: fuel combustion = chemical reaction / disassociation. The generated negative ions move to the center electrode of the spark plug to which bias voltage is applied, positive ions move to the grounded engine wall surface, and then current flows from the spark plug to the ignition coil.

Fail-safe
Function not equipped.
Ion Sensor Inspection
Lap Pre Tensioner Seat Belt [Two Step Deployment Control System]Sail Garnish Removal/Installation
1. Open the front door.
2. Affix protective tape to the position shown in the figure.
3. Insert a tape-wrapped flathead screwdriver into the shown in the figure and
remove the clip A in the direction of arrow (1).
4. Pull the sail garnish in the direction of the arrow (2) and remove it w ...
Electric Power Steering System
Outline
A column assist type EPS has been adopted for all models.
EPS provides smooth handling from low to high speeds as a result of the excellent
steering feel provided by the electronic control and the vehicle-speed responsive
control.
EPS does not require a power ste ...
License Plate Light Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Liftgate upper trim.
b. Liftgate side trim.
c. Liftgate lower trim.
3. Disconnect the connector.
4. While pressing the license plate light tab in the direction of arrow (1) shown
in the figure, press the l ...