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Home >> Saturn >> 2007 >> Sky Base, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Lock Control System >> Diagnostic Information and Procedures >> DTC B2705 >> Circuit/System Testing
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Circuit/System Testing

  1. Ignition OFF, disconnect the harness connector at the shift lock control solenoid.
  2. Ignition OFF, test for less than 1.0 ohm of resistance between the ground circuit terminal 3 and ground.
    • If greater than the specified range, test the ground circuit for an open. If the circuit tests normal, replace the shift lock control solenoid.
  3. Ignition ON and the engine OFF, command the Brake To Shift Control output control ON and OFF. The automatic transmission shift lock control solenoid should turn ON and OFF and allow the transmission to be shifted out of the PARK position.
    • If unable to shift out of PARK, test for an open or short to ground in the control circuit.
  4. Ignition ON and the engine OFF, connect a test lamp between the shift lock control solenoid ground circuit at the connector of the shift lock control solenoid and battery positive voltage. With the brake pedal applied, the test lamp should illuminate.
    • If test lamp does not illuminate, replace the shift lock control solenoid.
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