194003975 - 5540BO CHECK THE SPEED SIGNAL WIRING CONTINUITY INSIDE THE MASTER HEADLAMP

STEP	CHECK TO BE PERFORMED	RESOLUTION IF THE CHECK IS NOT OK
1	Remove the headlamp    Op. 5540B81 LEFT GAS DISCHARGE LIGHT CLUSTER - R.R.Disconnect the control unit from the headlamp    Op. 5540B43 CONTROL UNIT OF ONE RIGHT GAS DISCHARGE LIGHT CLUSTER ONE LH OR RH RR WITH LIGHT CLUSTER REMOVEDConnect the diagnostic tester in ohmmeter mode and check the continuity between Pin 10 of the headlamp 14-way connector    See F010 LEFT HEADLAMPand pin 15 of the control unit connector	Replace the headlamp
2	Replace the Ballast control unit    Op. 5540B42 CONTROL UNIT OF ONE GAS DISCHARGE LIGHT CLUSTER R R