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Home >> Chevrolet >> 2009 >> TrailBlazer 6.0 H, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Interlock System >> Diagnostic Information and Procedures >> Transmission Control Lever Malfunction >> Component Testing

Component Testing

  1. Install a 10A fused jumper wire from 12 volts to the automatic transmission shift lock actuator control circuit terminals B and E. Momentarily connect a jumper wire from ground to terminal A.
  2. Listen for the solenoids to turn ON and OFF.
    • If the function does not perform as specified, replace the automatic transmission shift lock actuator.
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