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Headlights Ground Wire Mod


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#1 siztenboots

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Posted 07 July 2019 - 01:08 PM

The indicator bulb (25w ~0.25amps)  has a split loom and takes its own ground wire 1.5mm2 , while the main beam+side light and dipped light share a single ground wire 1.5mm2 inside.

 

I was thinking to join the two ground wires at the dipped beam and double the amps available. 

 

The existing wiring is stuggling with the Phillips brighter bulbs and noticeably dims, also the copper used is poor.

 

Having recently seen quite a few smoking lights and dead looms on the forums, you have to split open the housing to get access, or you run a whole replacement loom externally to the backs of the fittings.

 

 



#2 siztenboots

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Posted 07 July 2019 - 01:15 PM

also the wiring diagram shows the indicator and sidelight bulb , share a ground wire , but its wrong , E22(3).3 and E22(3).4 items



#3 siztenboots

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Posted 07 July 2019 - 06:16 PM

with a single " Philips 12258XV+S2 X-treme Vision Halogen Headlamp H1 12258 XV+ 12V 55W " , on the left headlamp , this pulls 7.5amps through the fuse box

 

thats with the other lamp disconnected , tbh I expected something like 4.6 amps

 

I have temporary changed it to 20amp fuse , having had it blow the original 25A then a new 30A

 

I have a feeling its the connector on the main beam , but really wanted to find the unknown missing 3 amps



#4 siztenboots

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Posted 08 July 2019 - 04:37 PM

Now decided to switch back to a new complete set of HID , rather than the Philips new bulbs , tested the amps and figures match 110W expectations.






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