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Home >> Chevrolet >> 2002 >> Cavalier Base, 4D Sedan, 2.2 F >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Interlock Systems >> Diagnostic Tests >> DTC B2708: Gearshift Unlock Circuit High Input >> Test Description

Test Description

The numbers below refer to the step numbers in the diagnostic procedure:

  1. 2

    Listen for an audible click when the automatic transmission shift lock control solenoid operates. Command both the ON and OFF states. Repeat the commands as necessary.
  2. 3

    Tests for voltage at the ignition 1 voltage circuit of the automatic transmission shift lock control solenoid.
  3. 4

    Verifies that the BCM is providing a ground to the automatic transmission shift lock control solenoid.
  4. 5

    Tests if ground is constantly being applied to the automatic transmission shift lock control solenoid.