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-   -   H4 bulb pinouts (https://www.scoobynet.com/lighting-and-other-electrical-14/285670-h4-bulb-pinouts.html)

ozzy 29 December 2003 04:10 PM

What's the pinout for the H4 bulb wiring on a MY99 UK Impreza?

Is it (rear of bulb):-

Left - Gnd
Right - High Beam
Top - Low Beam

Stefan

ozzy 29 December 2003 04:36 PM

c'mon folks, it's baltic outside ;)

Tim-H 29 December 2003 05:47 PM

Left - Gnd
Right - High Beam
Top - Low Beam

hb_

earth I I low beam ,
looking at bulb from rear
get it wrong and all you will do is get both bulb filiments on together but dim,
Have a good one
Tim

ozzy 29 December 2003 05:59 PM

Tim,

Daft question, but how would you actually meter the voltage. Is it correct to stick one probe on low beam, then other on ground (using bulb connectors with lights on)? Obviously same idea with high beam.

That's what I did earlier and got 10.23v (14.2v @ alternator).

Stefan

Tim-H 14 January 2004 05:25 PM

Yep you are right with your metering, thats some sort of drop you have there, I would be surprised if after relaying them, you would take long to send me a big fat cheque and promise to wash my scoob on sundays, just for starting that light thread lol :-)
Have a good one
Tim


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