FixVault

Stop Lamp Switch System: Notes

PROBABLE CAUSE CHART

Code No.P0703 Stop lamp switch system Probable cause
If the stop lamp switch is on for 5 minutes or more while driving, it is judged that there is a short circuit in the stop lamp switch and diagnostic trouble code P0703 is output.
  • Malfunction of the stop lamp switch
  • Malfunction of connector
  • Malfunction of the ECM