All done. Congratulations.

 

I love it when a plan comes together!
And when we get the results! And even more so when it is apparent in the headline!
Well done to all involved.

 

I couldn’t have done it without the efforts of @kr98664 . Thank you for spending your time helping me solve this issue. I’ll do my best to pay it forward.

 

Another good job!!
That was a tough bit of troubleshooting for sure!
.
.
.

 

Hey everyone!

Im testing my TCM cables too.
Grounds seem good, live positive (coresponding to f33 in front fusebox) has power,
but the Green Orange cable that is ignition powered (coresponding to f15 in primary fusebox) is measuring 11.7v both at the TCM plug and at the F15 fuse (so do the other fuses there, powered by the ignition)
is it normal?

thank you!

 

[


QUOTE=elDariusVargas;2481124]Hey everyone! Possibly

Im testing my TCM cables too.
Grounds seem good, live positive (coresponding to f33 in front fusebox) has power,
but the Green Orange cable that is ignition powered (coresponding to f15 in primary fusebox) is measuring 11.7v both at the TCM plug and at the F15 fuse (so do the other fuses there, powered by the ignition)
is it normal?

thank you![/QUOTE]

possibly. What’s the condition!?

 

hey raph, thanks for replying!

ive got a p1643 ( communication error between ecu and tcm:

- i know for a fact that the Ecu, Tcm & J gate are all ok.
- Tested the continuity of the cables from the tcm plug to the ecu plug and to the fuseboxes, and they have a very low (towards 0) resistance, so they seem ok
- tcm connector has two positive calbles:
#1: Brown Red Live positive has same voltage as battery: 12.2v
#2: Green Orange ignition positive measures 11.7v. ( and so i tested at its fuse, in the primary fusebox, and they all measure 11.7)

This is why im asking if its normal?
many thanks 😎

 

Coming back here for those that might be dealing with the “Gearbox Fault” or “Gear Box Fault”. Mine ended up being a broken wire on the right side (US Passenger) wheel well. Take a look at post #50 below:

https://www.jaguarforums.com/forum/s...3/#post1025128

 

Sorry i forgot to conclude my case,
mine was faulty because a fluid leak at the tcm plug.
Replaced the sleeve connectir gasket assembly with a febi one and its been all good for 2 years now