The following components of the air bag systems are monitored by a diagnostic system:
• Crash sensors, and diagnostic module (SAS
unit)
• Front air bag sensors
• Air bag modules
• Side crash sensors
• Air bag/Front seat belt pretensioner system
warning light
• Front seat belt pretensioners
• Related wiring
(With Driver and Front Passenger Occupant Classification System)
• Front passenger air bag deactivation indicator
light
• Driver seat slide position sensor
• Front passenger seat weight sensors
• Front passenger seat weight sensor control
module
• Front passenger seat belt buckle switches
The diagnostic module continuously monitors the system's readiness. This begins when the ignition is switched ON and continues while the vehicle is being driven.
Driver and Front Passenger Occupant Classification System
Before DrivingDirect Fuel Injection System
Purpose, Outline
Engine output has been improved through the direct injection of fuel into
the combustion chamber.
High response can be because there is no time lag from when the fuel injection
starts until the fuel is provided to the combustion chamber.
Structure
...
Positive Crankcase Ventilation (PCV) Valve
Purpose, Function
Prevents release of blow-by gas (unburnt gas) into the atmosphere.
The PCV valve is open/closed by the intake manifold vacuum.
Construction
The PCV valve is installed to the oil separator.
The PCV valve consists of a spring and valve.
...
Air Bag System Service Warnings [Two Step Deployment Control System]
Air Bag Module Inspection
Inspecting an air bag module using a tester can operate (deploy) the air
bag module, which may cause serious injury. Do not use a tester to inspect an
air bag module. Always use the on-board diagnostic function to diagnose the
air bag module for malfunctions ...