huboy2

New Member
hi my fog lights have packed after i renewed fuse box .phoned my local RR dealer gave me the right amr numder for the becm i have right number fuse box no joy:confused:
 
Hi do the fog lights have a power in to the becm and power out from it thanks wammers.

Power outs from BECM are Pin 3 L/H pin 10 R/H. Fog lamps on off at various stages is all controlled by BECM. Fog lamp switch on is by earthing pin 14 on BECM thru fog lamp switch via pin 5 in and pin 4 out to ground. Only power feed to fog lamp switch is for illumination. But the fogs have to be switched on with diagnostics maybe BECM has just lost it's setting.
 
Thanks once again wammers how can i get the settings back.
Diagnostics. Buy yourself a Nanocom or fork out at a dealer. If your'e keeping the car long term, a Nanocom will be a good investment for when other things go wrong:)
 
You could stick your location on here and ask if there's anyone local with diagnostics. It might save you some beer tokens and be useful for the future.
 

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