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 left park lamps turn ON and OFF when commanding the Left Park Lamps ON and OFF with a scan tool.
- If the left park lamps do not turn ON and OFF
  Refer to Park, License, and/or Tail Lamps Malfunction .
- Go to next step: If the left park lamps turn ON and OFF
Verify the right park lamps turn ON and OFF when commanding the Right Park Lamps ON and OFF with a scan tool.
- If the right park lamps do not turn ON and OFF
  Refer to Refer to Park, License, and/or Tail Lamps Malfunction .
- Go to next step: If the right park lamps turn ON and OFF
Verify the left stop lamp turns ON and OFF when commanding the left stop lamp ON and OFF with the brake pedal.
- If the left stop lamp does not turn ON and OFF
  Refer to Stop Lamps Malfunction.
- Go to next step: If the left stop lamp turns ON and OFF
Verify the right stop lamp turns ON and OFF when commanding the right stop lamp ON and OFF with the brake pedal.
- If the right stop lamp does not turn ON and OFF
  Refer to Stop Lamps Malfunction.
- Go to next step: If the right stop 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 Mounted Stop Lamp Malfunction.
- Go to next step: If the center high mounted stop turns ON and OFF
All OK.