GapTec roof module. My car is haunted .........................

[Redline]

Mine won't work on the button Mozz. Code read at work pointing at that being faulty.

Tony.

Might be the gaptec interfering with the button operation if that has gone faulty. All that is doing is sitting across the inputs to the button array and looking for the sequence of button presses on the remote. That has to be one of the inputs. When seen it energises the respective outputs to the roof control as if the buttons had been pressed.

Have you had the ashtray out but still connected to see if it operates then?
If not then its disconnect the gaptec and see if that allows the buttons to operate the roof.

This is why I'd rather have a cable harness built to intersect the existing plugs and sockets - would be a doddle to add and remove

 

[Davyhoogy]

I'll give you £100 for the car if it's haunted

 

[t-tony]

You would want my ghosts Fact, believe me.

Tony.

 

[billz]

@t-tony Have you looked into this a bit more ?

 

[t-tony]

Hey Bill yes as much as has been possible, it's been mental at work today. My boss did a code read and came up with this.

At lunch I removed the switch assembly and disconnected the wiring to see if it would work from the key with the switch out of circuit. I really need a known "good one" to try and eliminate the switch as a possible fault. Going to have a look on eBay later. First need to close the roof manually so I dare use the car. Tried also leaving the switch in circuit while tweaking the cables etc. to no avail, stop lights also working ok.
I assume the second item above, cowl panel is the hard last folding piece of the roof ? Going to look for any reed switches on the folding mechanism too.

Tony.

 

[billz]

Lets hope you get it sorted soon mate. If anyone can its you

 

[EnthuZiaZT]

I know this may sound Naff Tony but why not remove the gaptec module and reconnect the wiring as standard and see if you can raise and lower the roof then. You would at least know if it's a fault with the Gaptec module or with the wiring/motor.

Mike

 

[t-tony]

I aim to call the guys at GapTec tomorrow if I get chance Mike and see if they can throw any light on this. The results I got from work point to the switch on the console but I would like one to try first. I know a few people with Z4's but not all have Heated seats so I'm not too sure if the roof switches will be wired the same. I think they will be.

Tony.

 

[Redline]

The gaptec module mimics the switches. It could well be that being faulty the diagnostics have reported. Having said that, it's a lot simpler to replace the switch module with a known good one.
Have you disconnected and reconnected the switch module?
Also pulled and replaced the fuses. A power-cycle reset might restore normal operation.

 

[t-tony]

The gaptec module mimics the switches. It could well be that being faulty the diagnostics have reported. Having said that, it's a lot simpler to replace the switch module with a known good one.
Have you disconnected and reconnected the switch module?
Also pulled and replaced the fuses. A power-cycle reset might restore normal operation.

Yes on the module Ian. Also checked stop light operation just to be sure. Been mental busy at work and had no time to look tonight other than to close the roof manually for the time being. However my little Bosch Ixo will be travelling with me to wind the screen top locks back and forth. The Allen key takes for ever it's so low geared ! Typical just a we have some decent weather.

Tony.

 

[Antm72]

Hope you get to the bottom of this one fairly easy.Lots of z4's being broke so hopefully not to hard to get a replacement...

 

[t-tony]

And the culprit was. . . . . . . . . . . a poltergeist,
I left the roof down until Wednesday evening, me and my mate Graham closed the roof manually. When I released the hood section and pulled it up I saw that the front securing catches were closed (not sure which position they park in so this may be a red herring). Anyhow I wound the catches open with the Allen key and we closed the roof and tightened it down with the key.
The next lunchtime at work I plugged the cables back into the switch assy. and pressed the open switch on the console, I heard the motor unlatch the roof but it didn't retract the hood, so I got out and lowered it manually. When I tried to close the roof, again hearing the motor but not movement but whe I lifted the roof the motor latched the catches and closed the windows as normal.
About then the penny dropped and I realised I had not released the cable in the boot which disengages the "motor/pump drive" so back in the boot, release the cable and try again. Roof opens and closes with key and with console switches. Only conclusion I can draw is that there is a fault with the console switch as per scan at work and that some rough handling has rectified it?
I found a switch on eBay for £35 so it might get bought as a precaution.
Seriously thought I was going to have to call this lot though . . . . . . . .

Tony.

 

[billz]

At least you seem to have found the issue even if it has rectified itself for the moment

 

[Bozzy]

Nice one mate,i bet you're chuffed to have got to the bottom of that problem .

 

[t-tony]

At least you seem to have found the issue even if it has rectified itself for the moment

Only one other possibility Bill is that I put my wash bucket in the boot last weekend and I wondered if it had turned one of the handles for extra boot space (for when the roof is up) which if in the wrong position may have stopped the correct sequence of operation of the roof maybe?

Tony.

 

[t-tony]

Nice one mate,i bet you're chuffed to have got to the bottom of that problem .

Happy it works again Steve, would be happier still if i was totally confident it was a "cure" rather than a "fix"

Tony.

 

[billz]

Yeh that could Def be a possibility. Always catch mine putting things in n out the boot. Press button on key nowt works. So now always check when it don't work

 

[Bozzy]

Happy it works again Steve, would be happier still if i was totally confident it was a "cure" rather than a "fix"

Tony.

Fingers crossed it's a fix. Electrical issues can take an age to diagnose at times.

 

[Redline]

Pleased you're back in operation Tony.
Not knowing why it stopped must be frustrating. As the diagnostics indicated the switch then I guess that is most likely the cause.
There must have been something wrong otherwise the codes wouldn't have shown up, even if you had the stowage in the wrong place.
Just a thought. Completely off the wall idea. Had the car and particularly the switches been in the sun for any length of time? Am thinking that heat might have been factor in the fault. Man handling the switches might have just sorted it.

 

[Redline]

Ignore that - it was complete rubbish - the fault started when you are driving... Doh