3360228 - I05 DIPPED HEADLAMPS NOT WORKING

Neither of the dipped beams work under any circumstances (either in manual or AUTO mode). When the appropriate lever on the stalk unit is raised or lowered with the key ON, or the appropriate button is pressed, the turn signals/hazard lights work but the intermittent operation is irregular.
Dipped beams are controlled by the Body Computer Node via a relay on the Facia Control Unit.

Lights can be turned on/off by means of the following controls:

  • Specific control (Exterior lighting control)
  • Control from dusk sensor
  • Follow me home control
  • Dipped beam maintenance control when main beams on
Results of the tests
1CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect an Examiner to the tester input and check the body computer node for: anomalies Continue to Step 2Anomalies presentContinue as instructed by the tester
2CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Keep the tester connected and check the body computer node for:

  • relay operation via active diagnosis
Continue to Step 5relay is not active Continue to Step 3
3CHECK DIPPED BEAM RELAYAll OKProblems metOperation
Check the condition of the dipped beam relay Continue to Step 4Relay defectiveChange relay
4CHECKING ELECTRICAL SYSTEM INSIDE FACIA CONTROL UNIT (control circuit)All OKProblems metOperation
Check continuity of electrical headlamp control circuit connections inside facia control unit See   E2010  SIDE LIGHTS / NO. PLATE LIGHTS Continue to Step 5Connection o.c. in facia control unit Change facia control unit Op. 5505A10
5CHECKING ELECTRICAL SYSTEM INSIDE FACIA CONTROL UNIT (power circuit)All OKProblems metOperation
Check continuity of electrical dipped beam headlamp control circuit connections inside facia control unit See   E2011  DIPPED HEADLAMPS Check continuity of relay power contactsContinue to Step 6Connection o.c. in facia control unit Change facia control unit Op. 5505A10
Defective relayChange relay
6CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present Fault persistsReplace the Body Computer Op. 5505A32Search for the fault starting from another symptom'