Hi

I have a 2004 s type 2.7 v6
The gear box fault as been coming on and of for the last 6 months but this time it is in safe mode it will go in to D,R,N, but the gears and the sports mode don't work.
When I drive it to test it, it needs around 3000 rev to get going I do believe from other post that it is stuck in 4TH ???????????.
I have tried hard reset and still the fault is there ITs been sitting for 3 days and every day I go to see if the fault light as gone out but with no luck.
I have book with jaguar to update the ECM TCM with a price of 200 euros
Just after that the car went into gear box fault.
ALSO is there any way I can reset the fault light with out a ODS reader.

Advice would be much appreciated

Matthew

matthew3551@gmail.com

 

The ZF 6HP26 keeps its own fault codes regardless of power so a hard reset won't help.

It would make sense to read its codes! And... BEFORE / instead of reflashing

 

Further: at the least get an OBD tool they're soooo cheap. Many "gearbox" faults are actually engine faults that upset the gearbox so you need to fix the engine.

 

JAGv8

Thanks for the information I have brought a OBD tool and I must wait for delivery.
I have been to jaguar Monaco today and booked a reflashing of the TCM, ECM. next Tuesday I hope the OBD tool will turn up before.
Jaguar X S Type XF Engine Light MIL Reset Diagnostic Fault Code Reader Scan Tool D900.

Thank you All the best

Matthew

 

I think you would be better off to ask the Jaguar dealer to find your problem instead of requesting a re-flash??

Why exactly did you decide that's your problem? It could get expensive real fast!
As was posted above the cause could be several if not many things. The car is complicated.
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I was going to do a reflash before the fault.
followed with a oil change in the gear box 125,000 on the clock it sounds good.
I hope the ODB code reader will come before the appointment, I will take the code codes and fix the problem dead I drive from London to france and I need a car that will do that a car that I can trust.
From other jag forums I have read a reflash as change the quality of the change improved the drive and gives a longer life to the box.

Thank you Matthew

 

At least get them to record the codes before the reflash. It is easy for them to do if you ask.

 

Ok Will do.
I was cleaning out the dirt and mud build up just below the window screen wipers and above the ECM and the 2 drain tubes that run in side the front wings it was all block up I took out more than 2 handfuls of leafs and dirt.
Tomorrow I will take out the ECM to see if there is water getting in side I noticed that when its wet out the gearbox fault light comes on.
Where is the TCM is it out side the gear box or built with in the gear box.
I would like to take a look at that toooooo.

Thanks Matthew

 

Inside, it's oil cooled.

If you have that much mess there then water in the PCM is a real risk and can ruin it.

 

It's possible the PCM is getting wet. On the Lincoln LS forum there have been several well documented cases. You could see the water stains on the outside of the PCM. Still pretty rare.

The PCM is not to easy to get out but you can remove some stuff under the glove box and shine a light at it. Maybe see if you want to take it out?
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I will take it out to day I have removed all the plastic from the winder screen and taken out the in car filter and the plastic tray under that I can see the ECM OR is it the PCM just to bolts to take out and I can push it though in to the car just under the glove box.

I will keep you posted and take some pictures best regards Matthew

 

The Standard (ISO, SAE) is PCM. Jaguar tend to use ECM.

Jag have the E as Engine. Oddly the early cars control the gearbox with it. PCM covers that case nicely without such oddness.

Jag used to number cylinders their own way but have changed so maybe they'll catch up on this too

 

HI After taking out the ECM I have found that it is water tight and with no water marks at all.
I have cleaned all the area from dirt, leafs.
Also found to music cd.

Good day

Matthew

 

UP date

After new up dates for the ECM and the TCM the car drives like a dream no more lurch and the gear change is top.

The gear box fault, there is a leak on the sump which can be change for 750 euros.
Being jaguar that is so over priced so I just filled up what was missing 3.5L
which cost me 256 euros for just the oil the total bill came to 588 euros.

I will buy the kit on line with the oil and filter I will do it my self for around 250 pound which is a large saving.

Jaguar said you need a new gearbox I said no way it can be fixed for a lot less.


Matthew

 

I am back with another gear box orange light.
I have change the oil in the box and filled it as instructed I still have the light on I when to a jaguar specialist to reset the computer the car is still in safe mode set in 2nd gear.
After meeting up with the jaguar specialist with the HBD 2 reader he reset the orange light but the light would not turn off he told me that it is still set in the gear box computer After 3 tries still no luck.

I brought a d900 odb 2 and will not work with the s type 2004 2.7 can any let me know what would be a better module OdB 2 reset the gear box fault.

I have disconnected the battery for 24 hours and reconnected the battery and still no luck light is still on.

 

You had a bad leak and 6 month ago your car needed 3.5L of transmission fluid. That is a HUGE amount. You most likely have damaged the transmission by running it low on fluid. Have you checked the fluid level now that your having problems again? It's not easy and must be right BEFORE you start flashing anything.

Your leak is probably the sleeve that contains the plug for the TCM. Please get the pan dropped and replaced. The filter is integrated in the plastic pan. While the pan is off replace the sleeve. It's only $15 but can't be changed unless the pan is off.

I would stop driving the car until the leak has been fixed and the proper fluid level is in the transmission.
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Thanks

This time I only needed to put 1 litre of gearbox oil to bring it back to level.
I drove the car to top of nice to see the English mercanic and it drives like a dream.
He told me For 1000 pound the gear box can be reconditioned and update parts and labour to stop the gear box faults which is a fault of the design of the car it will cost 4,000 euros in france to do this but take the car back to London kent and the price will drop.
I have just ordered a new ODB reader to clear all the codes this will work on the gearbox as well it been tested by this form on jaguar and I have been assured it will work well on the s type.
I have been looking in to changing the pan and sleve, oil at around 250 pound if I do it my self.
Just one last thing the car drive very good the gear box sound and changes very well its the fault light that I need to lose.

Thank you Matthew

 

The only reason I know for the light staying on is that there's currently a fault. It self clears if the fault is fixed.

 

Well there no "fault of the car". This is a weird statement??

If you keep operating it with low fluid it will fail. No different than any piece of equipment with oil in it.

It looks like you have been lucky so far with a 3.5L and a 1L refill needed. So I would do what you are planning. Get the leak fixed and fluid/sleeve changed.

Then clear all the codes and see what happens. If the transmission operates OK with the correct fluid level you should be OK. We are still in the dark and you need to post the actual codes from the car. They can tell us a lot!
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UP date I have brought the gearbox kit to fix the leek, which I must say the price was very good.
I live in the south of france so shipping will be more.

I hope this will put the car on track, I will sell the car after this change I might be looking for a 2006 s type plus or xj I have been told that the gearbox problems have been up dated with a lot les problems on the above.




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