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A search for P0115:

Search Results for P0115

 

I did already have a look using the search function and none of the results are the same as mine, in the fact that I have already changed the sensor and still getting the error

 

This is what I don't like about people being able to read the codes because no one ever reads the code properly. P0115 says Engine Coolant Temperature Circuit Malfunction. That doesn't just mean the sensor it means the whole circuit, which includes the wiring, connectors or even the ECU, could even be something else causing that code to be flagged up. This is why PP/diagbox is a far better investment because 9 times out of 10 the car will have to go on it anyway to find out the exact fault. My personal opinion is that cheap code readers are a waste of money as they rarely find the fault.

 

well here's the thing, I didn't know there was a fault until I had that cheap code reader, I also checked Autodata for possible solutions and the sensor was the cheapest one to try first

 

Hi I know what you mean unfortunately temp sensors are usually quite reliable and I am surprised the code has flagged up if there are no other symptoms. Have you cleared the code and does it return as something as simple as unplugging and replugging the sensor will flag a code up until it is reset, the presence of a code does not always mean there is a fault. My BSI has a fault code of the left hand indicator but there is nothing wrong with the circuit and it is probably from when I changed the rear light unit. If there are no symptoms reset the code and see if it returns.

 

Hey, yeah I did clear the code and then check again, did it a couple of times just to be sure.

 

Is it intermittent or permanent? Does your code reader support live data at all?

 

It does support some live data, Like revs, engine temp, various other things, the engine temp shown on the phone App I was using (torque) showed the same Temp as the Dash gauge did.

I'm assuming it's permanent as every time I checked, the error was there

 

I take it you have one of these bluetooth one's then? Haven't tried them I have a plug in generic one and also Diagbox. They both tell you if it is intermittent or permanent. What temp does it indicate with a) the engine stone cold and b) engine fully warmed?

 

yeah little bluetooth one, what model do you u have.


The engine started off at about 70 then went up to about 90 after running for about 15mins, with a few revs in between, the car is currently sorned at the moment, but it never did have any overheating issues and I'm assuming still doesn't.,but still got the error.

 

I have an Autel, a Foxwell and the Peugeot/Citroen Diagbox with Lexia 3 interface. Sounds as though everything is fundemantally OK. The only things I can think of is faulty wiring causing the signal to spike or distort that is why I asked if it was intermittent or permanent, could be the ECU itself, have you noticed any other problems with the engine or performance? Really needs to go onto Peugeot Planet or Diagbox to try and get a definitive answer otherwise leave it and see if the fault gets bad enough to determine what it is.

 

The car was used for about a year up until very recently without any issues, it's going in for a MOT next week and to have rear brakes done, so will mention it to the mechanic and maybe he can test it.

 

There are discussions about this topic on here, it really depends on what you want. Generic equipment is all very well but it is very limited as car ECU's often hold far more information that these code readers can read. If all you want is to read OBD codes and reset them on a range of cars then what you have got sounds about as best as you can expect. If you are serious about diagnosing and repairing Pugs Peugeot Planet or Diagbox and the Lexia 3 interface are the best investment you can make as they are not code readers but dealer grade equipment capable of reading every ECU in the car and a full set of diagnostic tools to help repair it, in addition you can program keys to your car and a whole host of other features. OBD readers tend to only read generic codes in one or a handful of ECU's although they will usually cover a wide range of cars. Unfortunately codes don't always mean a lot as the cause for the code could be something quite different to what you think it is or the code definition can be misread. As an example this is a set of fault codes that appear on the 207 GTi 175BHP and there are a few posts on these, without looking at the 207 forum what do you think causes them? P0444 - Fault Purge Canister Solenoid Valve Control fault short to earth
P0245 - Turbo Regulation Solenoid Valve Control Fault short to earth
P0034 - Turbine Discharge Solenoid Valve Control Fault short to earth

 

Would it be a touching or broken wire somewhere causing it to short? <---- my opinion based on not having a clue lol

If my car goes through the MOT, then I will probably invest in one of the better ones.

I do really appreciate you taking the time to respond to me, thanks again

 

Glad to try and help sorry if I sounded a bit short earlier but there are a lot of threads on here because of misleading information given by generic code readers. In answer to the 207 question it is a blown fuse, the ECU has been programmed to log those error codes if it sees no input from those circuits, it doesn't actually measure whether there is a short or not. Catches a lot of people out as they come on the forum asking where those valves are. I'm not a salesman for Diagbox either it is just a good bit of kit and will probably pay for itself quite quickly, if you do buy it you will find quite a bit of support for it on here or you could even go on the list of members who use their's to diagnose other members cars. Sorry couldn't help you further but that is a more obscure fault which requires further testing to establish the cause.