| 1 | Disconnect the negative battery cable.Remove the Master Op. 5540B81 LEFT GAS DISCHARGE LIGHT CLUSTER - R.R./ Slave headlamp Op. 5540B82 RIGHT GAS DISCHARGE LIGHT CLUSTER - R.R.Disconnect the control unit from the headlamp Op. 5540B43 CONTROL UNIT FOR ONE RIGHT GAS DISCHARGE LIGHT CLUSTER ONE LH OR RH - R.R. WITH LIGHT CLUSTER REMOVED Connect the diagnostic tester in ohmmeter mode and check the continuity between Pin 1 of the 14-way connector and Pin 5 of the 21-way connector for connection to the ballast control unit | Replace the headlamp |
