194003851 - I081 HEADLAMP ALIGNMENT ADJUSTER (ONE) RH OR LH NOT WORKING

one headlamp comes on normally but the vertical adjustment is not carried outif the control unit for the master headlamp is being replaced, delete the errors in the memory using the Examiner and calibrate the system
1CHECK USING DIAGNOSTIC EQUIPMENTALL OKPROBLEMS ENCOUNTEREDACTION
Check that there are no errors by connecting to the master headlamp (left side) control unit.Check that there are no errors by connecting to the slave headlamp (right) control unit.End of diagnosisPresence of error B1040 detected - Headlamp alignment correctorMove on to Step 2
2CHECK ON CONNECTION INSIDE THE HEADLAMPALL OKPROBLEMS ENCOUNTEREDACTION
Check that the connection for the headlamp vertical adjustment motor is correctly connected by carrying out the test    See Test 5540BM CHECK ON HEADLAMP ALIGNMENT MOTOR POWER SUPPLY WIRINGMove on to Step 3
3MOTOR OPERATION CHECKALL OKPROBLEMS ENCOUNTEREDACTION
Replace the left headlamp    Op. 5540B81 LEFT GAS DISCHARGE LIGHT CLUSTER - R.R.or right    Op. 5540B82 RIGHT GAS DISCHARGE LIGHT CLUSTER - R.R.(the broken one) and check that the motor is working properlyEnd of diagnosis1.Right headlamp alignment corrector not working1.Move on to step 4
2.Left headlamp alignment corrector not working2.Move on to step 4
4CHECK ON CORRECT OPERATIONALL OKPROBLEMS ENCOUNTEREDACTION
Refit the headlamp replaced previously and replace the ballast control unit for the headlamp that is faulty    Op. 5540B42 CONTROL UNIT OF ONE GAS DISCHARGE LIGHT CLUSTER R REnd of diagnosisThe fault persistsContact technical service for further information on the problem