Headlight Issue

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Re: Headlight Issue

Postby lotustonybassplayer » Tue 08.08.2017, 19:56

The indicator stalk is part of the lighting circuit as it is the dip/main beam switch also it puts up the pods if you flash someone so has to connected properly to make all the other parts of the circuit to work :D I would check the connection for it , as I had a lighting problem on my elise( it's the same stalk on both cars ) it was the stalk that was faulty and caused the issue.
Last edited by lotustonybassplayer on Tue 08.08.2017, 20:30, edited 1 time in total.
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Re: Headlight Issue

Postby clemo » Tue 08.08.2017, 19:59

i wish i could add somthing here ...

I am posting to just let you know we are reading ... so you are not alone in your quest for answers ,
just at the moment i don't have it .

Paging Pinky ...
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Re: Headlight Issue

Postby dapinky » Tue 08.08.2017, 20:09

clemo wrote:Paging Pinky ...


Clemo,

I am in the same boat as you - following with detached interest, but hoping for insight from someone who knows these things.

Unfortunately, I am pretty poor at diagnoses, especially on the electrical side. I'm well happy looking at oily bits held together with bolts and working them out, but once those electrons start running in the wrong places I bow to those who understand more than I do. :oops:
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Re: Headlight Issue

Postby lotustonybassplayer » Tue 08.08.2017, 20:37

Hi as the dim/main beam switch on the stalk is what switches between main and dip beam , as you are only getting the main beam to work then it's pointing to that as a possible fault
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Re: Headlight Issue

Postby Ultimatt » Tue 08.08.2017, 20:44

I'm with you Dave. Can't see the bloody stuff. Doesn't make sense and the diagrams are all in ancient Egyptian. :roll:
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Re: Headlight Issue

Postby Brit-Car-Nut » Tue 08.08.2017, 20:50

One last, easy test:

Pull fuse A4

According to the diagram, it supplies power to the Main/Flash portion of the Dip Switch. It would at least narrow it down to the dip switch part of the turn stalk.

If the dip switch has fused the "Flash" contacts, then the headlamps would stay up and the hi beams would stay on.

If the lights shut off and the pods go down, you know what needs to be fixed (replace the directional switch).

To make a temporary "fix",since the A4 fuse also provides power to the headlamp switch, you can cut the purple wire as it goes into the directional switch. Remember to insulate the ends of the wire.

Leave enough wire on both sides of the cut so you can reconnect them after you replace the switch.
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Re: Headlight Issue

Postby lotustonybassplayer » Tue 08.08.2017, 20:54

Just out of interest with the light switch off have you tried flashing the headlights ? Just to see if that side of the circuit is functioning correctly.
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Re: Headlight Issue

Postby Ultimatt » Tue 08.08.2017, 21:03

Okay. Taken the steering column housing apart and exposed the indicator/lights atalknarea. No disconnected wires or looseness apparent.

Haven't taken the steering wheel off as it's dusk so not taken the stall out to check over. But if it's not an obvious disconnected wire does it still point to this?

Is there any significance in the <12V supply to the pod module that would indicate an issue?
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Re: Headlight Issue

Postby Brit-Car-Nut » Tue 08.08.2017, 21:17

READ my previous post. You are not looking for a loose or broken wire. You are looking for a fused circuit that will be invisible until you locate it.
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Re: Headlight Issue

Postby Saltire » Tue 08.08.2017, 21:27

Matt, I have a spare column stalk for the headlamps and direction indicators. You're welcome to borrow it if you want to eliminate that as a possible cause. It's a straightforward swop, especially if you've already taken the column shroud off
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Re: Headlight Issue

Postby Ultimatt » Tue 08.08.2017, 21:32

Brit-Car-Nut wrote:READ my previous post. You are not looking for a loose or broken wire. You are looking for a fused circuit that will be invisible until you locate it.


Sorry. The previous post wasn't showing when I read and commented. Will go back and READ :-D
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Re: Headlight Issue

Postby Ultimatt » Tue 08.08.2017, 21:40

lotustonybassplayer wrote:Just out of interest with the light switch off have you tried flashing the headlights ? Just to see if that side of the circuit is functioning correctly.


Yep. Flash works fine with ignition off. And main beam and indicators fine with ignition on.

Saltire wrote:Matt, I have a spare column stalk for the headlamps and direction indicators. You're welcome to borrow it if you want to eliminate that as a possible cause. It's a straightforward swop, especially if you've already taken the column shroud off


Cheers. Pretty sure I've got one knocking around somewhere. Had an issue with the indicators about 4-5 years ago and bout one, for them only to start working again :roll:

Only problem is, where it got put in the move 3 years ago :lol:
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Re: Headlight Issue

Postby Ultimatt » Tue 08.08.2017, 22:04

Brit-Car-Nut wrote:One last, easy test:

Pull fuse A4

If the dip switch has fused the "Flash" contacts, then the headlamps would stay up and the hi beams would stay on.

If the lights shut off and the pods go down, you know what needs to be fixed (replace the directional switch).


So put lights switch on and main beam on.
Pulled A4, main beam goes off, pods stay up. So neither of the above apply. :-D
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Re: Headlight Issue

Postby Brit-Car-Nut » Tue 08.08.2017, 22:09

Why turn on the headlight switch? You are looking for something odd that is turning on the main beam and the putting up the headlight pods. The headlight switch is supposed to do that.
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Re: Headlight Issue

Postby dapinky » Tue 08.08.2017, 22:20

Matt,

having had a phone conversation with John (BCN), it may help if I try to explain it as it was explained to me (but I can write it in English, not American!!!!!)....

.... basically, John is suggesting that as the lights are up, but not working as they should, something has gone wrong (we knew that!).

It appears that the way the wiring is routed, power goes to the headlamp flash 'switch' on a brown wire from the fuse, which turns into a purple wire at the switch (probably at the plug between the loom in the cowl and the socket on the stalk)...

.... however, if at some time in the past, the switch was connected to make the pods raise and the lights flash, but then NOT disconnected when the stalk was released (either a bent contact or a 'welded' switch tab within the stalk), then the momentary connection would push the pods up, and flash the lights.... however bits of the operation are controlled by a relay, and bits by the module (if I understand him correctly), so the lighjts will go off again, but the pods will stay up.

The electronics think it is all on, when it isn't and it doesn't work at all.

If you pull Fuse A4 it should break the circuit and the pods should go down. If that happens, then cutting the purple wire will temporarily get you going, but you will have no 'flash' function.

The 'repair' is to replace the stalk (if the above checks suggest that everything else is okay).

I hope that I have understood John correctly, and explained it suitably :smt102
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Re: Headlight Issue

Postby Ultimatt » Tue 08.08.2017, 22:23

Because the main beans only work with the headlights switched on. Unless flashing them.

So how is it possible to test what you suggested:

Brit-Car-Nut wrote: then the headlamps would stay up and the hi beams would stay on.

If the lights shut off and the pods go down, you know what needs to be fixed (replace the directional switch).


Without the headlight switch being on?

Confused!
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Re: Headlight Issue

Postby Ultimatt » Tue 08.08.2017, 22:32

Right Dave.

Think I'm getting you. And thanks for the transatlantic translation.

Having already pulled the fuse, both with lights off to check if the fuse was broken, and in the last test with the lights on, neither of which dropped the pods, do I now need to....

With the lights switch off, pull the fuse and flash the lights?
M100 Elan SE:
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Carbon intake pipes.
Bailey recirculating BOV.
Samco hose kit.
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Re: Headlight Issue

Postby Brit-Car-Nut » Wed 09.08.2017, 00:13

Matt: If you turned the headlamp switch off and pulled the fuse and IF it was the flash contacts that were shorted, then the lights would have gone off and I thought the pods would have gone down. If neither happened, then you are looking at a bad pod lift module and/or a bad pod delay module. Of course, it could also be caused by a rodent that has decided to feast on the wiring behind the dash and has all sorts of bare wires bumping into each other.

The pod delay module is part number B100M0110F and is £12.12 so that would be my first test. The pod lift module is A100M6027F and it is now obsolete from Lotus. SJs seem to offer rebuilt or tested good units for £79.40.

I think you are at the point where swapping parts could be very expensive and still not fix anything. There must be a qualified Lotus specialty shop near by that can solve this. If you were nearby me, I would be happy to help out since I have several of the parts noted that could be used to test and verify the solution.

The diagram from Lotus is assumed to be accurate and there are only a few parts that can cause the pods to lift and the main beams to light. We are all assuming you have pod style headlights and not the "opera glass" version.

I am sorry my suggestions didn't help.
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Re: Headlight Issue

Postby Ultimatt » Wed 09.08.2017, 07:33

I very much appreciate all the suggestions as I'm flying blind.

Yep, tried removing the fuse without lights on and no change.

I've also swapped out the pod lift module with a new one and that did not resolve the issue.

Not knowing anything about electrics, could it be a poor earth connection and if so where would I be looking?

Never had any indication of any critters having a munch. And as the car is used daily all year round I should have noticed.

I think my nearest lotus 'specialist is an hour+ away but as I've never had a good experience with these in the past I'm loath to takenit in when most of the time none of them have any experience of the elan.

You mention the Pod Delay Module. Where abouts can I find this and is it likely to cause the symptoms mentioned?

Cheers
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Bailey recirculating BOV.
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Re: Headlight Issue

Postby Ultimatt » Wed 09.08.2017, 09:20

Right... I'm starting to think that the Pod Delay Module could be the culprit... need to investigate.

I've finally figured out the location of these blighters so hopefully I can access them.

Reason I think it might be an issue is that on returning to the car yesterday, the internal courtesy light was stuck on. Door closed etc. And nothing I could do bar pull the bulb resolved the issue.

Having found the location of the Pod Delay Module and seeing it is right next to the Interior Lamps Delay Module, I'm thinking there could be some hemline at work in that area.

Will let you guys know what I found if I can actually access it :roll:
M100 Elan SE:
Metallic Gold Fleck Red.
Carbon intake pipes.
Bailey recirculating BOV.
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Everest Chip !
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