Fritz_X

iTrader: (1)

Hey guys,

Quick question:

My old headlight switch **** the bed and took the old harness with it. I bought what I believe to be both an s4 switch and harness to replace it (car is an 87 T2), however upon installing the replacements I am left instead of without taillights now without headlights!?

So the car went from:

No running lights after headlight switch burned itself to a crisp, but headlights still worked.

Now with replacement switch and harness:

Running lights all work but headlights don't pop up when I flip the switch, and when I pop them up with the pop-up switch they still aren't lit.

Lastly:

Headlight switch I bought looks slightly different; instead of the typical pop-up switch located above the main headlight ****, there is an icon for a headlamp washer. Did I mistakenly buy a convertible or Anniversary Edition switch? If that is the case do they have a different setup for the wiring and if so which wires need to be changed?

Thanks for any help you guys can give!!

satch

iTrader: (1)

There could be different causes to why they won't pop up and then as far as them not turning on that would probably be caused by a wire going to the headlight relay not having the proper ground when needed.

In the engine bay fuse box there are two fuses associated with the lights. One is the Head fuse and the other is the Retractor fuse. Check the condition of these fuses. At the headlight relay, located between the radiator and front bumper, which has 4 wires with two of then being RED. If these two Red wires have constant voltage (no key necessary) then the Head fuse is good. If the White/Green wire coming from the Retractor fuse has constant power then that fuse is good.

At the Headlight relay jumper a wire to the White/Blue wire and ground the other end of the wire. If this relay has constant voltage on the Red wires then the lights ought to turn on (not pop up) when doing this.

There is some other stuff to look at, but check out the above first.

Fritz_X

iTrader: (1)

would these fuses change in just the space of me turning the car off, disconnecting the negative battery terminal, removing the old switch and harness (when the headlights and pop-up had just worked 1 minute earlier) and then as soon as I plugged in the new switch/harness and reconnected the battery the fuses would have gone?

satch

iTrader: (1)

You're going to have to check the W/L wire as suggested at the Headlight relay anyway to see if that is the fault of the headlight switch so while you're there how much effort would it take to see if both the Red wires at the very same relay have voltage or not? Again, if they do then it is a given that the Head fuse is good.

satch

iTrader: (1)

Are you having trouble finding the Headlight relay?

satch

iTrader: (1)

When you turn the **** of the headlight switch the R/W wire takes the ground from the Black wire and sends it to the headlight relay. The R/W eventually connects to the W/L wire that ends up at the relay. When this relay gets the ground signal the relay closes and allows the voltage from one of the Red wires to pass its voltage onto the R/G wire at the relay. Then the R/G wire takes the voltage and sends it to the dimmer relay. At the dimmer relay the voltage on the R/G wire passes through the relay if the low beams are chosen and the voltage leaves the dimmer relay via the R/B wire which then goes to the headlights and that's what turns them on.

The Red wire that goes from the Head fuse to the headlight relay also goes to the headlight switch. At the switch the Red wire passes its voltage onto the R/Y wire which tells the headlights to go down. When the **** is turned to the second position the voltage on the Red wire is passed onto the R/L wire which then tells the headlight retractor motor to turn the lights upward. The R/W wire at the switch again picks up the ground signal from the Black wire and when this happens the ground signal goes to the relay which is powered by the Red wire and the contact switches from the down position to the up position.

This is how it works and this is why it is imperative to ground the W/L wire at the headlight relay because w/o that ground signal the lights will refuse to turn on and it don't work any other way.