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Discussion Starter #1
Hi All,

I’m a bit puzzled. A few days ago my 2008 Passion’s ABS and ESP lights came on simultaneously. My code reader indicates U1111 and U1113, which are:

C1111 ABS Power Relay Coil Open Circuit
C1113 ABS Power Relay Coil Short Circuit To Battery

Odd, I don’t understand how anything can be open and short-circuited at the same time.

So... I’ve been able to do some digging and it’s probably one of three issues: the brake switch, the ABS pump or a relay in the SAM. I would prefer not to throw parts at the problem.

Does anyone have any insight or experience with this?

Where is the ABS pump? I can’t find anything on Evilution or Ittibitti.

Can anyone tell me if there is a difference between the power relay coil and the ABS pump coil? Is it the same animal?

Many Thanks!
-V-
 

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I'm outside my son's school so I don't have all my resources available...

Brake switch:. Are your brake lights functioning properly?

From manualslib ESP is on CAN, but it also has the battery on the driver side, so not sure how correct that is....

Will try to do more research later...
 

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Discussion Starter #4
Might want to check the reluctor rings on each rear wheel as well. :)


Oops, I should have mentioned that. The reluctors
On the rear wheels are fine. I replaced them both a few years ago with some good quality ones from the UK.

I also pulled the front sensors to make sure nothing was amiss. I replaced both wheel bearings about 2 months ago so I would doubt there were any issues. Since they are Hall effect sensors, there are no teeth to look at in the front bearings.

The tires are less than 6 months old and pressure is identical in all of them.
 

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Discussion Starter #5
I'm outside my son's school so I don't have all my resources available...

Brake switch:. Are your brake lights functioning properly?

From manualslib ESP is on CAN, but it also has the battery on the driver side, so not sure how correct that is....

Will try to do more research later...


Thanks for looking. Yes, the brake lights are functioning properly and I’m having no difficulty shifting.
 

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This is beyond me I'm afraid...

I just took a while to snoop around what I had on .pdf and about the specific codes U1111 and U1113. Since that is manufacturer specific code are you sure they translate to C1111 and C1113?

Might need a Star Machine for diagnosis on this one.

There is a rectangular bracket front and left (anatomically) holding the hydraulic unit and ESP control. It has a unique silver guide pin clearly visible off center length wise...
 

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Discussion Starter #7
Ooh. I didn’t think the OBD2 codes could be defined incorrectly by my code reader. If you are right, I might be on a wild goose chase. I don’t have access to a Star Machine, but I’ll do some digging to see if I can get one. I’ve ordered a service manual from the UK I’m hoping will enlighten me.

Failing that, I’ll probably just shotgun in the ABS pump, brake switch and ABS sensors. If that fails, I’ll replace the ABS relay in the SAM.
 

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I did a lot of U1111 and U1113 google searching and there were various different things, the most definitive was a live tech support page, where a Mitsubishi expert explained you'd need a special Mitsubishi diagnostic tool because of the 1 in the second position. (Since Mitsubishi makes the engine I thought this the closest...) Just ESP system has a ton of related systems:

Smart Workshop Manuals > ForTwo L3-1.0L (2009) > Brakes and Traction Control > Relays and Modules - Brakes and Traction Control > Traction Control Module > Component Information > Specifications > Page 1650

Here's where I read it is Manufacturer specific:

U1113 Engine Code Meaning - U1113 Engine Trouble Code - How To Fix U1113 | EngineCodes.net

U1111 Engine Code Meaning - U1111 Engine Trouble Code - How To Fix U1111 | EngineCodes.net
 
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