Hi guy's, since a few weeks I've had the issue of the car not reversing.
It will go in to reverse and i can feel it does but it does not move. It's like having 2 neutrals.
so every time i have to push the car back.

I read quite a few forums but couldn't find anything about my problem.

The gears going forward are still the same as before and have no issues whatsoever. I also read if pushing it in reverse is difficult, but that is also not the case. Under the transmission is completely dry and no signs of leaks. Oil is all good and on level and did a flush 20.000km ago. Checked all the fuses and are all fine.

This problem occurred when i had to reverse a few time back to back. I turned the car on and the car was maybe running for around 3 mins. So someone was blocking the road so i had to squeeze through.
because of that i put it multiple times in reverse. After a few times it would not reverse. Me thinking the wheel was stuck or something giving it more gass but nothing. So put it back in drive and back in reverse, it reversed again. Put it again in drive and reverse and after that it never reversed anymore.

so i went to the garage and let them read the faulty codes. These we're the following codes:

P1796 Malfunction - CAN controller circuit (bus out)

P1797 Malfunction - CAN Transmission Control Module to ECM

P1799 Malfunction - CAN Transmission Control Module/ABS-CM Circuit

(Had to translate, it may be not completely the correct translation)

(Car info: x-type 2002 3.0)

I hope you guy's have any idea what could cause this. Thanks in advance.

 

Select "Forums", then "General Jaguar Forums", then "New Member Area" - that is where you introduce yourself (before posting anything else)...

Also: Your header does not say, from which country you are...

I spotted that you have a 2002 x-type 3.0 - so that is a petrol engine nd it is AWD
I guess it is an automatic? And I am plain guessing that you may have the Jatco JF506E transmission - that is the transmission in my 2.1 and 2.5L X-Types.
I am not sure, if the 3.0L has the same transmission - but I just checked on Wikipedia: If you have and automatic, then yes: You do have that Jatco 5 speed transmission.

About your reverse issue:
Normally my first guess would be that someone was looking for the bolt to remove in search of the transmission fluid (ATF) level bolt and found a bolt behind the wheel arch liner and opened it: This is not the ATF check level bolt, it is a bolt, which dislodges a clamp inside of the transmission, and with that clamp dislodged, there is no more reverse gear. But as you had a reverse gear and then suddenly while driving it disappeared that does not sound like someone opened the wrong bolt...

Another idea: If your ATF (automatic transmission fluid) level is really low, e.g. when you drained the ATF and forgot about it and then attempt to drive, you will have no gears at all.
So, I am thinking: Maybe your ATF level is low and as a consequence your reverse gear does not work anymore. Thus, if you add a bit of ATF, it may - if your are very lucky - solve your issue.

I wrote a thread about how to do a proper FULL ATF change:
https://www.jaguarforums.com/forum/x...change-266693/

There you will find the information, which ATF to use.
The filler hole is left of the battery: There is a hole after you remove a rubber plug.

 

Thanks for replying.

My apologies about not introducing myself first. I wasn't aware of the rules.
I now have properly introduced myself. Thanks for letting me know.

As for the ATF level its all on level and was checked by a jaguar specialist.

I myself assume it may be the transmission control module. I'm basing this off the faulty codes.

The jaguar specialist told me that the reverse gear itself is gone and would need a replacement transmission.

I personally don't think this is the case since the faulty codes tell something else. The specialist also mentioned he wasn't able to read the faulty codes for some reason. (I'm guessing that's why he told me the reverse gear is gone.)

 

Thanks Peter for replying,

My apologies for not introducing myself first. I wasn't aware of the rules. I'm still new to the forums.
I now have properly introduced myself. Thanks for letting me know.

As for the ATF level, the jaguar specialist told me it was all good and on level.

The specialist told me the reverse gear itself is gone. He told me that i would need a replacement transmission. He also told me he wasn't able to read the faulty codes and therefore thinks the transmission is gone.

I myself don't think this is the case since the faulty codes tell something else. I assume it's the transmission control module. (Im basing this off the faulty codes.) Of course im not really sure about it.

 

Thanks Peter for replying,

i wasn't aware of introducing myself first so apologies for that. I now have properly introduced myself.

As for the ATF level. The jaguar specialist told me that the ATF was all good and on level.

he also told me that the reverse gear itself is gone and would need a replacement transmission. He also mentioned he wasn't able to read the faulty codes.

I personally don't think this is the case since the faulty codes tell something else. I assume it may be the transmission control module. ( i based this off the faulty codes.)
of course I'm not really sure if that's the case.

 

Thanks Peter for replying,

i wasn't aware of introducing myself first so apologies for that. I now have properly introduced myself.

As for the ATF level. The jaguar specialist told me that the ATF was all good and on level.

he also told me that the reverse gear itself is gone and would need a replacement transmission. He also mentioned he wasn't able to read the faulty codes.

I personally don't think this is the case since the faulty codes tell something else. I assume it may be the transmission control module. ( i based this off the faulty codes.)
of course I'm not really sure if that's the case.