H4 (9003) to 9004

[yiorta]

Hi. I have the euro headlights with the H4 pattern. I purchased (cheap is the reason) two used US type headlights. So now I have to buy two new 9004 bulbs, two 9004 male connectors and make some splicing. I know the US wiring but I don't have the euro type. Does anybody have the euro wring diagram for the headlights? Or, better, has anybody performed the same procedure in the past?

[shameem]

http://www.candlepowerinc.com/pdfs/9004_9007.pdf

http://www.candlepowerinc.com/pdfs/H4_9003.pdf

http://www.eurowires.net/wst_page4.html

[yiorta]

Thank you shameem but the links dont help because what I want is H4 to 9004 and not vice versa. I also know the pattern of the 9004. What I dont know is the H4 pattern. I also have the 9004 wiring diagram (3 wire plug) for the mx3 but I need the euro (six wire plug).

Thanks...

[yiorta]

Anybody ?

[Mooneggs]

so when you say you have a six wire plug I am guessing you also have the leveling headlight motors installed. I recentlyl converted my 9004 wiring to H4 wiring + leveling motors and I had to separate the six wires into 2 sets of 3.

[yiorta]

Well the time has come to put the plastic headlights with the 9004 bulb pattern. As I have said, for the moment my mx has the h4 bulb pattern. I can stick a voltmeter and find out the use of each wire to the bulb easilly I guess. But I am still confused on how to wire the 9004 bulb. I have two different inputs:

a. Here is the bulb side http://www.candlepowerinc.com/pdfs/9004_9007.pdf

b. Here is the connector side http://www.mx-3.com/manuals/showimg.php ... /Z-066.gif

These two mismatch. Does anyone know the high/low and ground connection to the 9004 bulb?

[Mooneggs]

most auto parts stores sell a 9004 connectors... you can cut off the h4 connect are rewire a 9004 connector on... I'm sorry for the moment I do not know the hi/low wires...

[yiorta]

most auto parts stores sell a 9004 connectors...

In the US for sure but here in Europe definitely none! As for buying from the US I ve been quoted for some extremely high prices for postage costs. So I will use reaphooks. The only thing that confuses me is which signal goes to which contact of the 9004 bulb.

[shameem]

most auto parts stores sell a 9004 connectors...

In the US for sure but here in Europe definitely none! As for buying from the US I ve been quoted for some extremely high prices for postage costs. So I will use reaphooks. The only thing that confuses me is which signal goes to which contact of the 9004 bulb.

Its not that difficult to find out by trial and error - and bulbs are somewhat tolerant of wrong connections. Also i dont really see where the mismatch is in the schematics you posted above - can you elaborate?

[shameem]

[yiorta]

My friend shameem I really thank you for the picture. This is exactly the info I was looking for!

Regarding the mismatch: At the second link I provided (http://www.mx-3.com/manuals/showimg.php ... /Z-066.gif" onclick="window.open(this.href);return false;) if you check left and down of the page, you see the connector to the 9004 bulb. It indicates that the ground is down right at the connector. The other link I provided (plus yours) indicate the ground to be down left.