DTC Confirmation Test (Using Generic Scan Tool)
NOTE:
Use the following test to check overall function of VSS circuit. During this test, 1st trip DTC may not be confirmed.
NOTE:
If a DTC confirmation test has been previously performed, turn ignition off and wait at least 10 seconds before performing next DTC confirmation test. Ensure battery voltage is more than 11 volts with ignition on.
Raise drive wheels and support vehicle. Start engine and select MODE 1 with generic scan tool. VSS reading on scan tool should be able to exceed 6 MPH (10 km/h) with wheels rotating. If operation is not as specified, go to DIAGNOSTIC PROCEDURE . If operation is as specified, system is okay at this time.