Re: H4 Euro wiring

["Music Research Corp." <mureco@telenet.net>]

Hi Matt!

        If you use the Headlight & Flasher Connection available from NAPA,
Part # LS 6235, you will have the ground on the drivers side, low beam on
the top, and high on the passenger side.  They mark these on the connector.
I hope this helps you.

Wayne Scheer
Amsterdam, NY

'87 5K with 249K
'89 1C with 122K

Both cars with the Group Purchase Euro lights.  60/55 W satisfies my needs
very well.

-----Original Message-----
From: Matt Rooke <mrooke@fcpa.fujitsu.com>
To: quattro@coimbra.ans.net <quattro@coimbra.ans.net>
Date: Thursday, December 03, 1998 5:35 PM
Subject: RE: H4 Euro wiring


>>Methinks my H4 bulbs are dead cause a resistance check shows zip (zero)
>>(short)... :(
>>
>>Could someone tell me which of the three male quick connects on the back
>>of these bulbs are high/low/gnd?
>
>Careful- bulbs _almost_ never fail shorted.  Resistance is very low.
>Example- 60W hi-beam filament is 2.4 ohms (P=VI, I=V/R -> R=VV/P =144/60)
>
>You should be able to use resistance differences to identify which terminal
>does what (BTDT).  Highest resistance pair = low-to-high terminals, the
>remaining one is ground.  Next, the high beam filament is slightly lower
>resistance than the low beam (higher power = lower resistance).
>
>HTH,
>
>Matt Rooke
>'91cq, 80/100 H4's (w/relays)
>
>