LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Chevrolet >> 2013 >> Impala LS >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Shift Lock Control System >> Diagnostic Information and Procedures >> Transmission Control Lever Malfunction >> Circuit/System Verification
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Circuit/System Verification

  1. Ignition ON, with the brake pedal applied, observe the scan tool Brake Applied Output Signal parameter. The reading should be ON with the brake pedal depressed.
  2. Ignition ON, observe the scan tool BCM shift lock solenoid command parameter. The parameter should change from ON to OFF when the brake pedal is applied and released.
    • If not the specified parameter, replace the BCM.
  3. Press the brake pedal, the vehicle operator should be able to move the shifter lever out of the park position.