QuestionI have a '92 Daytona, I know this is chrysler but Dodge answer dude is maxed out. But my headlights won't turn off. The parking lights and tail lihgts turn on and off with the button only the Headlights are stuck on, along with high beams. I was wondering if this could be a headlight relay, and if it is, where is this thing located?
Thanks.
AnswerHi Tom,
No problem...the Daytona and the LeBaron have similar wiring diagrams.
Yes there are relays, located on the left cowl in the relay block. This is under the dash, to the left of the driver's left leg, on the sidewall or cowl. There are 6 rows of relays, and there is a low and a high beam relay located in the middle two positions of the top row. But because there are two separate relays, both would have to fail simultaneously in the "on" position for you to get what you have there (I assume that the low and high beams are on simultaneously in this analysis). And the fact that they can't be turned off would possibly indicate a failed headlamp switch, but then the dimmer switch should only allow one or the other filaments to be "on", not both. There is another possibility, however, and that is the body computer which is also connected to the relays' actuation coils. If that connection were grouned for both of the relays, that would result in them going on by themsleves and staying on, regardless of the headlamp switch or the dimmer switch position. The body computer is located on right side cowl, by the passengers right leg, a mirror-image position of the relay block on the left. There are two plugs on the top of the computer, and the 'natural' colored plug is the one that has the wires from the headlamp relays (pin 9,10,20,21 very near to one another). In many LeBaron and Daytona owners experience is the strange electrical problems that cause what we like to call 'gremlins' that are traced to the body computer. The reason is that it is located right below the windshield and with the convertible body (or even the coupe) water can leak around that point and drip down right on those plugs which causes corrosion and short circuits to ground.
So I would begin by looking at the plugs on the top of that computer for signs of water/corrosion. You can get electrical contact cleaner in a spray can at an electronic supply store to spray both the socket and the plug interface to see if that clears up the problem.
The other possibility is a failed headlamp switch, failing to open the circuit from the switch to the dimmer when it is turned off. But that would only be the case if you could pick whether you wanted the low or the high to be 'on' all the time, unless there was a simultaneous failure of the headlamp dimmer switch; or of course both relays could be stuck 'on' as I discussed above.
But I would remove the body computer first and look at those plugs. There are a couple of attachments to the cowl.
I would be curious to know what you learn as this is a "gremlin" I haven't heard about before.
Roland
