Vehicle Theft Deterrent (VTD) System Check. Oldsmobile Eighty Eight 1999

For 1990-2009 cars only

Makes 🢒 Oldsmobile 🢒 1999 🢒 Eighty Eight 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Vehicle Theft Deterrent (VTD) System Check

Step

Action

Normal Result(s)

Abnormal Result(s)*

Attempt to start the vehicle.

The engine cranks and starts.

The engine cranks but does not start. Refer to Ignition System Check in Engine Controls.

Note the security indicator while attempting to start the vehicle.

The indicator comes on and goes off after approximately 5 Seconds.

•	SECURITY Indicator Always On or Flashing

•	SECURITY Indicator Always On or Flashing

•	SECURITY Indicator On, Engine Does Not Crank

* Refer to the appropriate symptom diagnostic table for the applicable abnormal result.