it's not clear which error lgiht your talking about.is it the lamp out display?if it is,make sure you replace the bulb with the proper bulb.this is critical.go to the dealership to get correct bulb

__________________
'95 s500 (bought for wife but can't bear to share!!!) 125kms
'92 legend 180kms
'88 tbirdturbo(fantastic car-only regular maint.)120kms
'87 mustang gt(gone)
'86 tbirdturbo(gone)
'85 mustang gt(gone-but not forgotten)