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Home >> Chevrolet >> 2013 >> Impala LS >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Lock Control System >> Diagnostic Information and Procedures >> DTC B2705 >> Circuit/System Verification
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Circuit/System Verification

  1. Ignition ON, clear the DTC. Observe the scan tool BCM Brake Applied Output Signal parameter. The parameter should change from ON to OFF when the brake pedal is depressed.
  2. Ignition ON, observe the scan tool BCM Shifter Unlock Command parameter. The parameter should change from ON to OFF when the brake pedal is depressed.
    • If the parameter does not change, replace the BCM.
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