Circuit/System Verification

Ignition ON.
Verify the scan tool Brake Pedal Applied parameter changes between Active and Inactive while pressing and releasing the brake pedal.
- If the parameter does not change
  Refer to Brake Pedal Position Sensor Malfunction .
- Go to next step: If the parameter changes
Verify the scan tool Brake Pedal Position Sensor Learned Release Position parameter, located in the BCM Chassis Control Data display, is within 0.1 V of the Brake Pedal Position Sensor parameter when the brake pedal is fully released.
- If the difference is greater than 0.1 V
  Perform the Brake Pedal Position Sensor Calibration .
- Go to next step: If the difference is less than 0.1 V
Verify the left brake lamp turns ON and OFF when commanding the Left Stop Lamp ON and OFF with a scan tool.
- If the left brake lamp does not turn ON and OFF
  Refer to Stop Lamps Malfunction .
- Go to next step: If the left brake lamp turns ON and OFF
Verify the right brake lamp turns ON and OFF when commanding the Right Stop Lamp ON and OFF with a scan tool.
- If the right brake lamp does not turn ON and OFF
  Refer to Stop Lamps Malfunction .
- Go to next step: If the right brake lamp turns ON and OFF
Verify the center high mounted stop lamp turns ON and OFF when commanding the Center Stop Lamp ON and OFF with a scan tool.
- If the center high mounted stop does not turn ON and OFF
  Refer to Center High Mount Stop Lamp Malfunction .
- Go to next step: If the center high mounted stop turns ON and OFF
All OK.