2751048 - I06 MAIN BEAM HEADLAMPS NOT WORKING

With the dipped headlamps switched on (stable position) or in the flashing mode, when the stalk unit ring nut is operated, the main beam headlamps do not work
Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect the Examiner to the diagnostic socket

check

  • that there are no faults in the Body Computer
  • the operation of the lights in active diagnosis.
Continue to Step 3Body Computer faultyContinue according to the instructions for the diagnostic equipment
Body Computer faultyContinue to Step 2
2CHECK ON INDIVIDUAL LIGHTSAll OKProblems metOperation
Check the condition of individual bulbs and light units.Continue to Step 3Bulbs damagedReplace bulbs Op.   5540B22 
Front right light cluster faultyRepair or replace front lights cluster Op. 5540B08
Front left light cluster faultyRepair or replace front lights cluster Op. 5540B07
3MAIN BEAM HEADLAMPS ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation

Check, in order:

  • left and right main beam headlamp fuses
  • main beam headlamps relay feed;
  • connection between steering column switch unit and Body Computer;
  • connection between Body Computer and engine compartment control unit;
  • connections between engine bay control unit and bulbs;
  • bulb earth See E2012 MAIN BEAM HEADLAMPS
Continue to Step 4Blown fusesReplace the fuses, then search for the cause of the problem
Blown fusesRestore the connections See E2012 MAIN BEAM HEADLAMPS
Blown fusesRestore the earth to the bulbs See E2012 MAIN BEAM HEADLAMPS
4CHECK ON STEERING COLUMN SWITCH UNITAll OKProblems metOperation
Check that the stalk unit is working properly See E2012 MAIN BEAM HEADLAMPS Continue to Step 5Stalk unit faultyReplace the stalk unit Op. 5550A12
5CHECK ON BODY COMPUTERAll OKProblems metOperation
Check that the Body Computer is supplied properlyCheck that when an earth signal from stalk unit to Body is activated, an earth signal is emitted from the Body to drive the dipped beam headlamps relayContinue to Step 6Incorrect supplyRestore the supply See E2012 MAIN BEAM HEADLAMPS
Incorrect supplyReplace the Body Computer Op.   5505A32 
6Continue as instructed by the testerAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosis.