[technologymind]

You might don't believe me this fault in curtis 1238 occurred while I mounted trailer hitch at the rear of the car.

So it is little wonder what happened, the result is the car can't drive, also the curtis meter show '*********'

As i understand the manual it is a watchdog fault, and i might be able to learn more about the fault if i connect the pc program 1314 to the curtis?

Any suggestions about this error? (my car is a citroen c1 EVie)

https://www.youtube.com/watch?v=pRpNJ47jOIo

thanks

/michael

 

[Hippie Djohn]

Hej Michael

You probably need to load the software again.
Unfortunately these kind of faults often ends up with controller replacement.

Are you sure you didn't short something related to the brake light which is controlled by the 1238 ?

Mvh.
Rasmus

 

[technologymind]

uhh, i am not sure about the cables to the brake light, is a shortcut enough to 'kill' the controller? might be the reason?

The curtis drive a relay as i remenber it, the relay then drive the brake bulbs. I did blow a fuse inside the car, either the brake or back light fuse, can't remember.

How can i find out if the curtis is dead, with the 1314 program ?

/ michael

 

[technologymind]

curtis shematic with connections in citroen c1 evie: http://techmind.dk/citroen-c1-evie-elbil/teknik/curtis-1238-motor-controller-forbindelser-i-citroen-c1-evie/

 

[Hippie Djohn]

All I/O's except O/I GND (pin 7) should be protected.
If you are able to connect to the controller and set parameters, it should be ok.
Per has the SW if you need to reload it
If not, you are probably looking at a replacement.

 

[technologymind]

oki, thanks. A replacement sounds expensive, cost for a new one is high. Is I/O gnd connected to vehicle gnd (acc 12 volt gnd)?

I think i will try open the box if i can't communicate with it. Maybe it's just some simple fault as a defect transistor, diode, or chip. Still, think it is strange it breaks down. What if i have a gnd issue in the car. The next curtis will break down also.

Thanks for advice

/michael

 

[Hippie Djohn]

I/O gnd or pack ground should NEVER have any connection to vehicle/ chassis gnd.
It is hazardous, illegal and also creates a lot of problems! check that !

Let me know if you need a new controller, I can maybe help you out.

Good luck !

 

[Hippie Djohn]

I/O gnd is only for sensors connected to the controller

 

[technologymind]

okay, i will test this later, thanks.

I hope i can fix my 1238, but i am interested in a price idea for at new/used replacement, could you pm me?

 

[Caps18]

http://www.evwest.com/catalog/produ...ucts_id=103&osCsid=o22noet7p07jars0tkdi7dn5a5

It doesn't sound right that the whole controller gets fried because you overloaded a brake light... If this is even possible, Curtis should be the ones to mount a fuse panel to the front of the controller to prevent this from ever happening again.

But $2000 USD is quite a hit.

 

[GoAhead92]

My experience of seeing ******** is when I've disconnected the main power, then tried to drive before reconnecting it. Have you used a multi meter to confirm your pack voltage is making it to the controller?
I hope I don't sound rude to ask if the power is actually on, yet I've made this error more than once. Including a time when I moved some clutter near the button which accidentally pushed the emergency disconnect.
I also believe ********* may show when a programmer is connected to the controller.

 

[technologymind]

Caps18: i agree both I might have found a cheaper 1238-6501

GoAhead92: thanks for you suggestion There is no emergency switch in the car, only the contactor (looks like this one: http://www.evsource.com/tls_albright.php)

The main contactor don't turn on, before a little later. Sometimes 10 sek, most times several minuttes, sometime 15 minnutes. I simply don't know what is wrong here.

I am waiting for a programmer cale to 1314 pc prg, and hope i can readout the error code, an the find the thing causing this fault.

In this video you can see the ******** for a short time. Sometimes longer, sometimes ½ sec. https://www.youtube.com/watch?v=nT20oDqXBVg

The quistion is: what caan cause the curtis cintrolller to NOT turn on the contactor?

thanks

michael

 

[Hippie Djohn]

Hi Michael

Many faults will result in main contactor = OFF

You need to get contact to the MC though the 1314 diagnostic SW and check for faults.
Also check your I/O's in the 1314 monitor menu and physically.

How about the contactor, does it operate if you put power to it ?

 

[frodus]

Why not count the error flashes on the controller LED's? See what they tell you.

 

[Hippie Djohn]

If the controller LED is solid red it is quite difficult to read flaches

 

[technologymind]

I checked the contactor manually, i works as it is supposed to

As you already know i have a defect CAN mosfet, and a zener diode, waiting for spareparts from ebay UK

Hi Michael

Many faults will result in main contactor = OFF

You need to get contact to the MC though the 1314 diagnostic SW and check for faults.
Also check your I/O's in the 1314 monitor menu and physically.

How about the contactor, does it operate if you put power to it ?

 

[technologymind]

Why not count the error flashes on the controller LED's? See what they tell you.

Thanks for suggestion, i have not succeed i finding out whats wrong, by counting blinking leds.

I found a defect CAN bus mosfet and defect zener inside the curtis 1238 controller.

 

[technologymind]

To updated followers of this post, i am now working inside the curtis 1238-6501 controllers electronics, finding faults on the logic pcb.

A defect mosfet and zener is defect, and might be the reason why curtis protect it self, and display a solid red failure.

Right now waiting for spareparts.

You can check my website for more info and insights about what i find out.

I make some notes on a picture of the curtis logic pcb, about PINS and mosfets:

My website is in danish this link should make translation automatic

https://translate.google.com/translate?sl=da&tl=en&js=y&prev=_t&hl=da&ie=UTF-8&u=http%3A%2F%2Ftechmind.dk%2Fcitroen-c1-evie-elbil%2Fteknik%2Fcurtis-1238-6501-logic-pcb-pn36201c-mosfet-drivers-placement%2F&edit-text=

 

[67BGTEV]

How did you open the 1238? I've a controller with bad capacitors, i was not able to open it..

 

[technologymind]

The brass terminals are 'pressed' together, and not easy to remove. Mine are full of scratches now, but still i will work fine. You could make some kind of tool to pull the top part of the terminal away.

I could take some pictures showing how terminals are removed if it could be any Help.

Do your curtis tell You it is a capasitor fault? I am having trouble connecting to it, are You able to do that?

Also, i am searching for another defective curtis 1238, if You know anyone whith a defective Controller