2888374 - I15 (SIDE) BRAKE LIGHTS NOT WORKING

When the brake pedal is pressed with the ignition ON, the brake lights do not work.
Results of the tests
1CHECK EXTERIOR LIGHTINGAll OKProblems metOperation
Check the condition of the brake light bulbs and the associated bulb holderContinue to Step 2Bulb damagedChange bulbs
Rear lights cluster faultyRepair the tail-light Op.   5540A44 
2CHECK CENTRAL LIGHTAll OKProblems metOperation
Check the condition of the individual ten bulbs and complete bulb holder assemblyContinue to Step 3Bulb damagedReplace individual bulbs
Bulb holder faultyRepair or replace the third stop light Op.   5550D16 
3CHECK STOP LIGHTS ELECTRICAL CIRCUITAll OKProblems metOperation

Check, in order:

  • stop lights fuse (services)
  • connections between junction unit and brake pedal switch
  • connection between junction unit and bulbs
  • bulb earth
See   E2021  BRAKE LIGHTS
Continue to Step 4Component defectiveReplace the component involved (if a fuse is involved, search for the cause of the problem)
Connections brokenRestore the connections
4BRAKE PEDAL SWITCH CHECKAll OKProblems metOperation
Check that the brake pedal switch is fitted correctly and working See   E2021  BRAKE LIGHTS Continue to Step 5Brake pedal switch faultyRepair or replace the brake pedal switch Op.   5550D10 
5CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsSearch for the fault starting from another symptom'