2398778 - I22 DIPPED BEAMS DO NOT COME ON IN "MANUAL" DIPPED MODE

When the stalk unit collar is operated in the manual position with the key turned on, the dipped headlamps do not work.
Results of the tests
1DIPPED HEADLAMPS RELAY CHECK (POWER CIRCUIT)All OKProblems metOperation
Swap the dipped headlamps relay with the steering column switch unit relay (it is the one above on the right) (in the junction unit under the dashboard) and check that the dipped headlamps are working properly afterwardsContinue to Step 2The dipped headlamps still don't work even after the swapContinue to Step 3
2REPLACING STEERING COLUMN SWITCH UNIT RELAY (POWER CIRCUIT)All OKProblems metOperation
Replace the steering column switch unit relay (which was actually the one for the dipped headlamps) and check that the windscreen wipers are working properlyEnd of diagnosis.
3DIPPED HEADLAMPS RELAY POWER SUPPLY CHECK (POWER CIRCUIT)All OKProblems metOperation
Restore the two relays to their original positions.With the ignition ON, check that the dipped headlamps relay is correctly supplied by the battery.Then, connect to the relay supply from the Body Computer and check that the supply is sent to the relay when the dipped headlamps are operated. Also check that the electrical connections between the battery and the relay are not faulty See   E2011  DIPPED HEADLAMPS
Do not disconnect the relay
Continue to Step 4No power supply from the batteryRestore the correct power supply to the relay. If necessary, replace the faulty components (if a fuse is involved, search for the causes of the problem first)
Supply enablement not provided by the Body ComputerContinue to Step 6
Connections faultyRestore the correct connections. See   E2011  DIPPED HEADLAMPS
4CHECKING 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 6Body Computer faultyContinue according to the instructions for the diagnostic equipment
Lights not activatedContinue to Step 5
5CHECK ON INDIVIDUAL LIGHTSAll OKProblems metOperation
Check the condition of individual bulbs and light units.Continue to Step 6Bulbs damagedReplace bulbs Op. 5540B22
Front right light cluster faultyRepair or replace front lights cluster Op.   5540B79 
Front left light cluster faultyRepair or replace front lights cluster Op.   5540B78 
6DIPPED HEADLAMPS ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation

Check, in order:

  • Left and right dipped headlamp fuses;
  • Connections between steering column switch unit and Body Computer;
  • Connections between Body Computer and junction unit under dashboard;
  • Connections between junction unit under dashboard and lamps;
  • Bulb earths See   E2011  DIPPED HEADLAMPS
Continue to Step 7Defective componentReplace the component involved (if a fuse is involved, search for the cause of the problem)
Connections brokenRestore the connections See   E2011  DIPPED HEADLAMPS
7CHECK ON STEERING COLUMN SWITCH UNITAll OKProblems metOperation
Check the stalk unit is working properly: in particular, check the side light switch Continue to Step 8Stalk unit not working properlyReplace the stalk unit Op.   5550A12 
8DIPPED HEADLAMPS ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsReplace the Body Computer Op.   5505A32