Calling all DAS C3 Experts please

[SL03WLY]

Hi,

I recently had access to a DAS C3 kit and upon connecting it, it kept showing the "Switching on ignition". This was during the Quick Test. The is a 2014 version of DAS with Dev mode which I was hoping to make use of to enable a retrofit of Distronic. Anyone happen to know what I can do to get around this? I was able to get into CGW and IC to enable DTR but EZS and the ECU ME 2.8 wasn't working due to this ignition pop-up.

Also to note that the battery voltage was at 12.5V and another time the engine was running so was showing 14.7V. And this is a genuine kit and not a copy.





This is from the caeser self test


Thanks

 

[SL03WLY]

 

[SL03WLY]

I made 2 changes and reverted them. Checked 3 times and now my drive and passenger seats no longer move. Fuses all look fine in panel next to the door. The mirrors move and also kove when pressing the memoery button. The dynamic controls work where air is getting into the various bladders. Only the seat and steering wheel do not move anymore now. Was fine during first and second attempts with DAS. On 3rd go no longer work

 

[Diesel Benz]

Could you please take screen shots instead of camera photos with the flash blinding parts of the photos.

Could you please provide a complete self-test, how does it show for the CL15 and CL30 voltages?

 

[SL03WLY]

Hi,

Yes will try and do that soonish. Forgive my ignorance as this is all very new to me, but when you say CL30 & CL15 voltage is this referring to the large and small batteries in the car or elsewhere? Or will this show in the Caeser self test results?

Thanks

 

[Diesel Benz]

Hi,

Yes will try and do that soonish. Forgive my ignorance as this is all very new to me, but when you say CL30 & CL15 voltage is this referring to the large and small batteries in the car or elsewhere? Or will this show in the Caeser self test results?

Thanks

CL30 and CL15 are the "permanent" and "switched" voltages that C3 measures with an ADC and the results appear at the self-test. Best to test with ignition on or from a lab power source with the 4-pin test cable (CL15 and CL30 connected to +12).

 

[SL03WLY]

Cheers

So from the test with car running I have the below:

D2 Power Battery … Voltage KL30 = 14.5 V
D2 Power Ignition … Voltage KL15 = 00.3 V



Thanks

 

[DSM10000]

Cheers

So from the test with car running I have the below:

D2 Power Battery … Voltage KL30 = 14.5 V
D2 Power Ignition … Voltage KL15 = 00.3 V

View attachment 135955

Thanks

Diesel Benz asked you to run the test with ignition on or powered by an external source , not with the engine running.

That might give the wrong result.

 

[Diesel Benz]

Cheers

So from the test with car running I have the below:

D2 Power Battery … Voltage KL30 = 14.5 V
D2 Power Ignition … Voltage KL15 = 00.3 V



Thanks

This looks like the ADC-circuit issue. The diagnostics SW does not then see ignition being switched on. It would be useful to repeat the test with the 4-pin banana connector cable to be sure the issue is not the OBD cable or the car.

 

[SL03WLY]

Cheers, will look around. I did the test with ignition only and got same ignition result of 00.3 V and 12.1 V at battery

 

[SL03WLY]

The problem is I moved the seat right back so I can connect everything, but now cant move the seats forward. I checked what I could and it shows active in the memory seat option.When I try to normalize it, it shows a pop up message to turn ignition on even though it is on ignition 2. So will disconnect battery and see how it goes because this is rather upsetting to drive like this to any MB garage to sort so.

 

[alexanderfoti]

I have had faulty Mux's before with this symptom (showing no voltage on on circuit 15). There is a workaround that gives you an ignition tick box, but will likely mess up your genuine copy of DAS.

 

[SL03WLY]

I have had faulty Mux's before with this symptom (showing no voltage on on circuit 15). There is a workaround that gives you an ignition tick box, but will likely mess up your genuine copy of DAS.

Ah so, there is a DAS Simulation software that has this ignition tick box but not the live software. Not sure how to get it to run either but you saying that it may mess up probably not worth it then.

 

[alexanderfoti]

Ah so, there is a DAS Simulation software that has this ignition tick box but not the live software. Not sure how to get it to run either but you saying that it may mess up probably not worth it then.

Das sim is only for simulating a connection to a car for training purposes etc.

If the fault is in your mux, you can replace the mux with a clone and it will work.

 

[Diesel Benz]

Cheers, will look around. I did the test with ignition only and got same ignition result of 00.3 V and 12.1 V at battery

Likely the MAX192 circuit issue (location and circuit details may wary according to the mux make). Often can be replaced with a DIP chip, depending on the circuit board, a bit easier to solder.

 

[SL03WLY]

Thanks for the help. Ive spoken to the gentleman I bought it from who is kindly going to test it out with another unit and cable to see if it is the mux that is faulty or the car.

However, for reason I cannot understand despite not even touching their settings the front 2 seats wont move now and I cant operate the rear windwos using the drivers window switch. I can drop them using the rear door window switches no issues and DAS also lets me manually move them using actuations option.

Any ideas on why this could happen?

 

[alexanderfoti]

Where you messing about in developer mode?

Sounds like you started an adaption reset but didn't finish. Easiest way is probably disconnect both batteries, wait 20 mins, reconnect and see.

 

[SL03WLY]

Where you messing about in developer mode?

Sounds like you started an adaption reset but didn't finish. Easiest way is probably disconnect both batteries, wait 20 mins, reconnect and see.

Hi, yes so I did go into Dev mode for the CGW and IC but couldn't get far with the EZS.

I did disconnect both the batteries today morning but no luck unfortunately. It won't even let me normalize the seats as it doesn't see the ignition.

 

[alexanderfoti]

Unfortunately, it's a bit of a guess as to what you clicked! Did you change German coding settings.

 

[richard]

If you coded the CGW, you probably turned off something that was important - something that makes the car think it has not got some control module or relay that it needs. CGW holds lots of config info that other modules use to control their behaviour.

Some guessing here, but you could have somehow turned off one of the circuit 15 relays so no ignition power being sent to the OBD2 port (pin 8) and the electric seats (if I remember right, electric seats have ignition switched power feed, memory seats have permanent as they are on CAN network, so as you have memory seats this may be a red herring, but if U turned off memory seats maybe they stop working)

Your next step is to screen capture all the settings in the CGW before you try changing anything else ... I assume it is undriveable at the moment ?

R