125000555 - I66 ONE DIPPED HEADLAMP LOWERED AND NOT MOVING

One headlamp is completely lowered and not moving, the other is working properly. Warning: Presence of high voltage (25 kV) at the gas discharge bulb connector during the first 0.7 seconds after the dipped headlamps have been turned on. Do not switch on the dipped headlamps when the discharge lamp connector is not correctly connected. Do not disconnect the discharge bulb connector with the dipped headlamps switched on. Handle the discharge bulb with clean, cloth gloves and never touch the glass bulb with your fingers. Never reverse the polarity of the supply line for the headlamps or else the control unit will be irreversibly damaged.
Results of the tests
1CLOCK LEAD CHECKAll OKProblems metOperation
Check the continuity of the clock leadContinue to Step 2Clock lead brokenRestore the continuity See    See E3080 HEADLAMP AGLINMENT CORRECTOR
Control unit not sending clock signalReplace control unit Op.    Op. 5540B43 CONTROL UNIT OF ONE RIGHT GAS DISCHARGE LIGHT CLUSTER ONE LH OR RH RR WITH LIGHT CLUSTER REMOVED
2SENSOR LEAD CHECKAll OKProblems metOperation
Check the continuity of the sensor leadContinue to Step 3Sensor lead brokenRestore the continuity See    See E3080 HEADLAMP AGLINMENT CORRECTOR
Control unit not sending sensor signalReplace control unit Op.    Op. 5540B43 CONTROL UNIT OF ONE RIGHT GAS DISCHARGE LIGHT CLUSTER ONE LH OR RH RR WITH LIGHT CLUSTER REMOVED
3CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsReplace the Body Computer Op.    Op. 5505A32 BODY COMPUTER - R R