Hi guys. Anybody know what is this code? P1225.
I was driving to work today and the car started loosing acceleration. I pushed the gas pedal and nothing. The Gear Box light came on and just about a second, Check Engine light came on too. I pulled aside, stop the car and then the RPM's went up to 3000 and slowly came down to 1350 and stayed there. Turned off the car, connected the OBD and it gave me that code. I reset the code, started the car and...everything back to normal again. I'm being looking and reading everywhere and the only thing I can find about that is Jaguar DTC's Codes: P1225-Needle Lift Sensor Malfunction.
What is that sensor and where is located? Anybody, please. Thanks.

 

Sorry, not being very positive here, but according to JTIS Jaguar don't list P1225 as one of their fault codes.

I'm familiar with needle lift sensors, but I don't recall seeing any reference to them or ever hearing of any associated with Jaguar!

 

Do you have the diesel or petrol engine?

 

Doesn't look right for a Jaguar. Sure about the code?

 

Mine is a 2.5L gasoline

 

And yes, not even my mechanic can't find that code in the system. But a lot of threads in Internet talk about that code as a Jaguar DTC code. Maybe not for gas engine, but yes for diesel engines. Maybe?

 

Post deleted

 

The code's list is longer, but as you guys can see, that code is there as a Jaguar DTC code. My mechanic told me that in his system, the codes jump from P1224 to P1229. The ones between, he don't have it. Maybe this are general codes, for gas and diesel. But if it like that how I'm having that code in my computer?

 

There are two dead cert Jaguar codes that can be used to prove or disprove any potential list as a Jaguar one or not! these are:

P1111 all engine management OBD diagnostic monitor drive cycles HAVE BEEN COMPLETED.
P1000 all engine management OBD diagnostic monitor drive cycles HAVE NOT BEEN COMPLETED.

One of those two codes will always be present.

The above list fails on the P1111 code and is unsure about the P1000. Because of that I would not use that list for a Jaguar.

Using the code list in the Jaguar workshop manual, P1224 is a Throttle control position error. Possible causes given are
Throttle adaptions not performed after battery disconnect
TP Sensor disconnected
TP Sensor to ECM sense circuits: open circuit, high resistance
Throttle motor relay failure
Throttle motor relay to ECM circuit fault
Throttle motor relay power supply open circuit
ECM ground circuit fault (relay coil drive)
Throttle motor to ECM drive circuits: open circuit, short circuit, high resistance
Throttle motor failure
Throttle body failure

P1229 is also listed - Throttle motor control circuit malfunction. Possible causes:

Throttle motor disconnected
Throttle motor to ECM drive circuits: short circuit or open circuit
Throttle motor failure

Hopefully that might help your mechanic sorting your car out.

 

Many of those are WRONG. It is NOT a correct list!

 

Yes it's not a correct list, so i've deleted it.

There is one master list from Ford from 2007 when they owned Jaguar, have a look at the list here FORD DTC MASTER LIST

The Ford list does not identify P1225 as being a Jaguar code, but it is in the list as a Needle Lift Sensor code, whatever that is.

I don't know...it's odd.

 

Ok guys. Thanks for your help. I deleted that list. It seem to be all wrong or almost. Now, today the car did the same when I start moving this morning. Thanks God I was in my house in the driveway. The code is P1229. Maybe the other day was the same but I was so nervous about having a transmission problem, that maybe I have it wrong, sorry about that.
The car did the same, Gear Box on, a little, just a little throttle response, and that's the code, P1229.
I'm going to check relays R11, fuses and throttle connections, following Thermo instructions in others previous treads about this code. I'm also having problems with my ABS. Days ago gave me a C1165, replace the rear right speed sensor and the problem is there, still the same code.
I'm thinking that maybe that problem and this problem are connected by the same source, bad ECM. What do you think about that? It can be? Maybe I need a new or used ECM.
Anybody know how much it cost to reprogram a ECM in the dealership?

 

Don't stress yourself trying to tie these faults up together - it's an unlikely situation! C1165 is specifically a wiring fault to the righthand rear wheel sensor (Open circuit, short circuit to ground or short circuit to Battery +ve). If it's the sensor itself it should give a C1235. Could be just a corroded connection at the sensor.

 

Thanks Astromorg. So for that speed sensor I must check the connection coming from the ABS module, the connection under the back seat? I replaced the sensor and the connection looks fine, no corrosion.

 

But my biggest concern is about that problem with the Throttle body. I don't know if this have any logic but can the Throttle body being reprogram, relearn, or just the ECM? If I replace the Throttle body for a new one or used one, the ECM need to be reprogram or is just plug and play?

 

I called The Collection Jaguar Dealership service department, here in Miami, Florida. A diagnostic, $320, if computer need to be reprogram, between $300 and $400. Now, the Throttle Body, just the part, $1640.

 

You can get a used throttle body online for a lot less than that if you look! And it's plug and play so don't worry!

 

Thanks Astromorg for all your help and I'm so sorry for everything, I'm an idiot. And I say so because I already found the source for this throttle problem, so simple, and caused by me.
Apparently, when I replaced the starter last week, I hit by accident the throttle motor connection, the plug that connect the engine wire harness to the throttle body motor, and I disconnected, not completely but it wasn't doing a proper connection with the throttle motor connection, was loose.
So, because of that, all the problems that I have after that.

I'm really sorry about that. In Cuba, my native country, we have a saying, "If you have 2 eyes and just 1 mouth, is because you should check, look, see, be sure first, before you talk". And I didn't. So, sorry again and THANKS FOR YOUR HELP AND YOUR TIME.
I tested the car after I plugged the connection back and everything seems fine. Smooth ride and no problems with the throttle body. Just the ABS light coming back after driving 18 miles. But I think that problem is a bad ABS module.
Thanks again.

 

That's OK Danomar - we've all been there in our time!

The good thing is that P1229 came up and the first listed possible cause is a loose connection. A win for a methodical approach.

Take the same approach with your ABS problem - the code says wiring. A module failure would be a different code to what you have!

 

About that ABS problem, I'm being checking everything. The connections seems fine, the plug in the module, the connection with the speed sensor wire under the back seat, the ring inside the hub, the sensor is brand new....really, I don't know where else to look. I just think that can be a bad module or pump. What do you think. The electrical part looks ok.