See also:

Emissions Testing
Testing of Readiness Codes Your vehicle uses “readiness codes,” as part of its onboard self diagnostic system. Some states refer to these codes during testing to see if your vehicle's emis ...

SRS (Supplemental Restraint System) Indicator
When the power mode is set to ON The indicator comes on for a few seconds, then goes off. This tells you the system is working properly. If the indicator comes on at any other time, or does not ...

Immobilizer System
The immobilizer system prevents a key that has not been pre-registered from starting the engine. Each key contains electronic transmitters that use electronic signals to verify the key. Pay atten ...