Hello, my 2012 XF has weird problem, check the engine light comes on almost weekly and after 5-6 stops and starts it normally goes away. I read the fault codes and the ones that keep reappearing are B13CC and B13CA, right and left static cornering lamp power feed.
Both cornering lambs work just fine and have been working for the last year, its just the annoying check engine light that bothers me and thats why I was wondering has anybody else had the same problem and hopefully found a solution? I was going to check the fuses but after reading couple posts here it seems there are no fuses but FETs, are there any point replacing them? Or could it be grounding problem?
My left rear door lock is also broken so is it possible that these two little faults make the engine light come on?

 

I forgot, also faultcode U2010, switch illumination, has been reappearing regularly but interior lights work just fine and same with all the button lights.
I am going to fix that rear door lock later this year and hope that it would be enough

 

It's really hard to determine what's causing that's.

I would start with the basic stuff check your battery it might have a bad cell, your car would appear to work fine.
Battery problems are known a cause, of throwing all sorts of strange events.

Replace the bulbs all though they seem to work, the filament might actually be broken and touches the other end when moving, i had this in a BMW took me months for find out, i used to get backup light errors but the light was working.

Sort the door lock.

 

Thanks for reply, I changed the battery year ago but it didnt help. I'm going to check the bulbs then, it just feels odd that both of them would be broken yet still working but then again, I'm not a mechanic let alone electrician

 

If the bulbs work there is nothing wrong with them. The bulbs are fed by separate FETs so it won't be that either. Maybe the ECU.

 

Faulty control module would make sense, where is it located? In the engine bay?

 

Its all part of the main fusebox. Might be worth checking bulbs are correct wattage.

 

I can't find those B codes listed for the XF only for LR Discovery all Jag specific codes begin with P

 

Schematic is for Range Rover Sport. Sorry, I work on both, was getting a little confused.

 

I dont know about the codes thats what my reader pulled out, it is made for Jaguar and Land Rover so could that be causing weird fault codes?
Icarsoft is the brand, dont know about quality of it.
Also after checking pictures I found one more code, U2101, control module configuration incompatible

 

When you load the icarsoft are you selecting Jaguar rather than Land Rover & then the correct model? I'm just wondering if your being thrown by incorrect codes.

 

Yeah, I'm not that dumb 😁 model, year and engine are selected correctly and those are the codes that come up

 

Sorry not suggesting you are!
I just don't see a fault with a light bringing on an engine warning light.
Those codes just don't seem to be correct for your model.

 

No offence taken 🙂 I have no glue why the light keeps coming on, I even bought new fuelcap just in case the old one was leaking but suprise suprise, it didnt help

 

I start with the back door lock and see if it helps with the light, atleast I know whats wrong with that one

 

Sounds like an electrical fault of the worst kind, intermittent. Could be a switch or a module, but that would have to be traced. A code will only tell you the general area of concern, not the bend in the loom where the sheath might have worn through.

 

icarsoft is a good brand. I have one. It sounds like you headlamp control module may have lost it's configuration.