Did I find an option

[DarthMarauder]

Just wondering if this has ever been covered I have noticed with the few times its rained that if its raining and I turn on my parking and fog lights and the wipers are going that the headlights kick on no matter what. If it gets dark and I have the parking and fog the headlights never kick on unless I have it in auto lamp or physically change to them. Do MM have a sensor that detects the wipers being on and turn on the headlights for you or am I just imagining this??? Or do I have some special optioned MM that no one else has that now makes mine a one of a kind?? :lol: Is this another difference between a 300a and 300b??? I have a 300a by the way.

[Marauder2005]

If you turn your wipers on the headlight will come on automaticly

[Bigdogjim]

NO! You have a issue! I have been through this 3 times with my marauder.

My guess is a bad module! Again 3 times they were replaced. Lights and wiper module. I have a 300A Aug. build '02

[CRUZTAKER]

... Do MM have a sensor that detects the wipers being on and turn on the headlights for you ....?

YES.

It's unavoidable.

[jgc61sr2002]

Yes Wipers ON = Headlights ON.:D

[03MERCMARAUDER]

Same here. After the wipers are on for about a mon or so my headlights come on, and when they are shut off the lights go off.

Joe

[Bigdogjim]

Funny? I guess when they changed the module it does not do that on my marauder?

Fine by me I can remmber to turn my light on when the wipers are on:)

[TripleTransAm]

There is a hard wire between the light module and the wiper motor. The line is to indicate to the light control module when the wipers are parked. If they are not parked, the light module will eventually trigger the lights to come on.

This was disabled on my MM#1, I have to do the same thing on MM#2 but I don't recall how this was done on MM#1 way back in 2003. One of these weekends when the weather is good, I will have a look at the wiring to see if it was a simple removal of the pin for that hard wire, or whether it was a short on that pin.

[DarthMarauder]

Thats awesome I love all the cool little options like this makes me enjoy the luxury end of the MM even more. Plus its a nice little thing when someone says there car does this I can go oh yea does your parking brake disengage when you put it in drive and does your headlights sense when its raining and turn on by themselves??? Even though I love the look of the parking foglight combo on I guess I can deal with the headlights coming on when it rains doesnt bother me a bit especially not enough to try and modify the wires to make it stop.

[DarthMarauder]

Same here. After the wipers are on for about a mon or so my headlights come on, and when they are shut off the lights go off.

Joe

You should have your module checked if it takes a whole month before they turn on and doesnt that cost quite a bit on gas to have your car running that long :lol: :D

LOL kidding just another Noob having to make a joke

[TripleTransAm]

...and does your headlights sense when its raining and turn on by themselves???


Well, that's just it... they don't sense when it's raining. In the situation where you get intermittent drizzle, or when you have to turn on your wipers to deal with a bout of salt spray on an otherwise dry day, it's embarassing to have the lights flick on and stay on for a bit then turn off. In dense urban traffic I've had the lights flick on/off up to 6-7 times within the space of 2 miles... those behind me must be thinking I've got some sort of neurological issue. That, and I'm thinking the flicker that happens when the headlights switch from DRL mode to full headlight might be making the guy in front of me think I'm flashing him for some reason.

If it actually WAS a rain sensing mechanism, I'd want it to turn on my wipers not my lights.

[DarthMarauder]

Thats what I meant as far as it sensing the wipers being on. Mine take a few before they turn on they dont just turn on when I hit the wiper switch my wipers have to be on for a min or 2 or so I remember never noticed if they flicker when I just turn them on for a sec will have to watch for that next time it rains which is supposed to be tomorrow.

[DEFYANT]

Just dont let the blinker fluid get to low or that option will not work anymore.

[1stMerc]

If you turn your wipers on the headlight will come on automaticly

It is a law in some states that if you have your wipers on while its raining, you must have your lights on. Its a safety issue.

[TripleTransAm]

It is a law in some states that if you have your wipers on while its raining, you must have your lights on. Its a safety issue.

Up here our lights are always on. (well, at a slightly reduced intensity... to be honest, on either of my MMs I can't really see a big difference between the DRLs and regular lights).

To address the turn-on delay, for sure they don't come on right away. But not a whole minute. Off the top of my head, maybe 5-10 seconds TOPS. So if I happen to keep the wipers on for longer than that, FLICK - on come the lights. Turn the wipers off, and the lights remain on for 10-20 seconds... and then the whole thing starts over again at the next need to run the wipers. Freaking annoying.

Perhaps the replacement module BDJ is referring to has changed the sensitivity of the light module?

[RCSignals]

Well, that's just it... they don't sense when it's raining. In the situation where you get intermittent drizzle, or when you have to turn on your wipers to deal with a bout of salt spray on an otherwise dry day, it's embarassing to have the lights flick on and stay on for a bit then turn off. In dense urban traffic I've had the lights flick on/off up to 6-7 times within the space of 2 miles... those behind me must be thinking I've got some sort of neurological issue. That, and I'm thinking the flicker that happens when the headlights switch from DRL mode to full headlight might be making the guy in front of me think I'm flashing him for some reason.

If it actually WAS a rain sensing mechanism, I'd want it to turn on my wipers not my lights.

But Steve, don't you have DTR anyway? Aren't your headlights always lit, even though in DTR mode?

[JMan]

It's time to chime in here. If your headlamp switch is in the Autolamp position and you turn the wipers on, after a brief delay (A few seconds), the headlamps go on. After turning the wipers off, the headlamps go off. If you want to defeat this feature, turn the headlamp switch to Off. I'm sure there's a succinct description in the owner's manual of the operation. I don't have fogs, of course.

J

[Mike Poore]

Funny? I guess when they changed the module it does not do that on my marauder?

Fine by me I can remmber to turn my light on when the wipers are on:)

:laugh: Jim took his MM in to have the switch broken, and on the third trip they did it! :rofl:

[Bluerauder]

Funny? I guess when they changed the module it does not do that on my marauder?
Not on mine either ... auto lights only come on if it is dark enough for the sensor. Now, I have to run out and check this to see whether I just haven't noticed. I sure don't remember the lights coming on when I had the "auto-erratic" wiper problem. :rolleyes:

Update .... I just checked and the lights do come on with the wipers if they are in the autolamp position. :D I have never noticed that in the 28 months that I have had the MM. Looks like there are still things to learn. :up:

[SID210SA]

I don't think mine has that...I just tested it with the parking and fog lamps on and the wipers on...the head lamps did not come on....

[merc6]

It's time to chime in here. If your headlamp switch is in the Autolamp position and you turn the wipers on, after a brief delay (A few seconds), the headlamps go on. After turning the wipers off, the headlamps go off. If you want to defeat this feature, turn the headlamp switch to Off. I'm sure there's a succinct description in the owner's manual of the operation. I don't have fogs, of course.

Jnope...turn wipers on and eventualy headlights kick on. turn wipers off off and then the headlight switch is inop in all positions except with the option of fogs on and off. Either have to wait the time limit out or cycle the key. At least thats my car.

[SID210SA]

From what I noticed only the 2003's seem to be doing this....or did I miss a 2004 that posted.

[TripleTransAm]

But Steve, don't you have DTR anyway? Aren't your headlights always lit, even though in DTR mode?


Yes, but:

1) they still flicker when the 'headlights' come on (from, say, 85% intensity to 100% intensity, there is still a flicker)
2) the parking lamps are only on when the headlights are "on".
3) the rear lamps are unaffected by DRL operation.

[beemer]

Just dont let the blinker fluid get to low or that option will not work anymore.

If you need blinker fluid go to: www.kalecoauto.com They got it. ;)


http://kalecoauto.com/images/BlinkFluid.jpg


Best,

Paul :D

[QWK SVT]

There is a hard wire between the light module and the wiper motor. The line is to indicate to the light control module when the wipers are parked. If they are not parked, the light module will eventually trigger the lights to come on.

This was disabled on my MM#1, I have to do the same thing on MM#2 but I don't recall how this was done on MM#1 way back in 2003. One of these weekends when the weather is good, I will have a look at the wiring to see if it was a simple removal of the pin for that hard wire, or whether it was a short on that pin.

I'd like to know which wire it is... I've already disabled my DRLs (with a hidden toggle switch inside the car). It's very annoying to go from no lights, to on, in situations that don't require it.I had to have a discussion, with my car ":nono: I'll choose when my lights go on, thank you!"

[JMan]

It's time to chime in here. If your headlamp switch is in the Autolamp position and you turn the wipers on, after a brief delay (A few seconds), the headlamps go on. After turning the wipers off, the headlamps go off. If you want to defeat this feature, turn the headlamp switch to Off. I'm sure there's a succinct description in the owner's manual of the operation. I don't have fogs, of course.

J

Let me clarify this statement. On my '04 non-Marauder, the above statement is true. It may not be true on '03's and/or Marauders. Once again, it is plainly detailed in my owner's manual.

J

[Bigdogjim]

Perhaps the replacement module BDJ is referring to has changed the sensitivity of the light module?

I remember that my friends at the body shop changed that when they removed my front seats after MV-II:) I was looking to change seats to get more headroom. But no luck.
I wish they made a car for big & tall guys, right mercman:rolleyes: