To make a long story short, I stumbled on this site through this thread:

https://www.jaguarforums.com/forum/s...c-fixed-67541/

My car is a 03 Jaguar X type. And it's completely dead. Cranks endlessly, but no turnover.

I have SDD 134 with mongoose IDS (I'm not sure if it's a clone or the real thing) -- I also have access to a genuine J2534 programmer CarDAQ Pro that also works with SDD.

I have no problem with actually connecting to the car and everything.

But I cannot program the VID block. If you read the linked thread (particularly post #10), you'll see the OP talking about programming VID block and then actually programming the ECM.

SDD does not detect the ECM at all. When I request the VIN through the VID block, all I get is 00000 or ????? -- clearly the VID block is corrupt. I'd like to restore it.

BUT.

It would seem that a couple of steps are missing from OP's instructions on post 10 -- as in, how do I enter the engineering mode? It would seem that he managed to overwrite the VID block on the ECM through the engineering mode...but I can't. When I click the engineering mode (golden key in SDD), it asks for a password. I don't know the password.

Can anyone shed a light on this?

Any help is appreciated.

 

AFAIK there is no way into Engineering Mode without the one-time passcode, which you can only get from the SDD Helpline (i.e. JLR directly) and you will need to have a Topix Programming subscription for that....

Have you tried entering the VIN manually, and then going through the symptom selection to forcibly reflash the ECU?

We had to do this once with an XJR, it would not read the VIN because the GEM was corrupt (laptop crashed during reflash). After manually entering the VIN and going through the symptoms, we were able to force the reflash even though the system said it could not communicate with the module.

Good luck with it....

 

Can an ordinary OBD tool see the PCM? If not, have you checked wiring etc right through to the PCM? They don't tend to lose their programming.

 

Wow, sweet! Thanks for the info, I shall attempt it.

I have no problem with buying a Topix subscription if it gets me the seed password to fix the car, but last time I attempted to get a password (it was back in 2012) and the tech over the line said that they don't give out seed password just to anyone -- you need to have a 1 year subscription.

Is that still true? Or can I just buy a 1 day subscription and then ask for seed password?

For some reason I can't reply to your PM.

@Jagv8:

Yes, we've checked the wiring to the ECM -- it's perfectly fine. I think the PO messed up the calibration update (some way, somehow) and it bricked the car completely.

I would do a complete ECM replacement, but problem is, new ECM costs $1500+, and once programmed, ECM are locked. It's not like a Ford or GM where I can take any JY ECM and program it and be done with it, you know?

 

There IS a way to enter an engineering mode. I'll PM you, but if you'll promise to keep it in secret

 

I just wondering how long it takes to program ecm. I can hear it activate when I start the programming, but I have had it running for 5 hrs.

 

Welcome to the forum rickpicco68,

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some info about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

 

With mongoose clone a ECM or TCM flash may last forever. Also there may be some issues after a programming (last time i've seen an unresponsive TCM, which was hard enough to reprogramm and get to work). It's better to use a Rotunda VCM.
A ECM or TCM programming usually takes no longer than 15 minutes.

 

What functions sit behind the 'Engineering mode'. I'm unable to re-flash my TCM after a failed attempt to clear the adaptions. Now I get 'Can't communicate with TCM' message when I attempt to do a re-flash. I have IDS/SDD V130 and all other functions work without any problem. Any secret stuff behind he gold key that might help me??

 

Hello, I also need to enter engineering mode. If you'd be so kind as to PM me too then I'll also keep it quiet.
Regards,
David

 

 

 

I think you call Jaguar and they issue a passcode - if you've an up to date member subscription.

 

Hey, saw this post and I am actually trying to do something similar, I have an 08 XJ that got the supercharged engine swap. I'll keep the secret if you can kindly let me know how to get into engineering mode!

I need to pair the immo on the ECU to the rest of the system and update the vin in the donor ECU.

Thanks in advance.

 

I might be able to help with this. PM your contact info, or contact me at
remotediagjlr gmail

 

Hey, Thank you for replying!

Update: I downloaded SDD 130, installed on windows XP and its working with a clone cable. I was able to immo match the supercharged Engine Control Module to the car. The car runs!

The current issue I have is the software wont download the VID block to edit the vin because there is a VIN mismatch on the chassis components and the ECM. If anyone has had this problem, how was it resolved?

The secondary issue is when I'm in engineering mode I don't see a yellow bar on the bottom or the menu options on the side.

I can post pictures if needed be.

 

Sure i can help. I will be doing the job myself. And my time needs to be compensated for, if you are OK with that contact me at remotediagjlr@gmail.com
or pm me your contact info....

 

Some Updates:

I was able to get the car to pass NY emissions, with a different PCM vin compared to chassis.

Using a combination of older XP SDD130 and Windows Pro SDD168 I was able to edit the vin block with a grit hub seed key generator. Vin numbers are customizable but I did get a "configuration file" error while using a supercharged file then adding the NA vin. I think the issue was related to the calibration file loaded into the trans. I stopped short here since I need all readiness monitors to set first.

What a wild two years in the making. Supercharged file has all the necessary additional chassis wiring added in by retrofit, which I call pin swapping to make the factory intercooler work and air box solenoid for no DTC's. PWM reference to the fuel control module was added. Signal was added to the intercooler relay present in the front electronics box. The neat part of this was that the functional hardware is built into this platform; I wasnt expecting that.

The VID block editor was super useful in manually coding out ACC since the 2008 XJ Vaden Plas didnt come with it. Edit: I didnt have a choice on this since I made the mistake of creating a VID block that had originally asked if ACC was installed. I selected Yes by mistake not knowing it wasn't part of the system, car was almost set but I was getting a DTC showing no signal from ACC in the PCM, for emissions that's an auto fail.

Last items to tackle will probably be to set the vin number without codes but that might not be possible since the trans is paired to the SC vin and Im not sure of torque differences between NA and SC calibration files, if anyone has specific details on this that would be helpful. I was told by a trans shop the SC trans is better internally. And finally need to figure out the fuel pump limit with E85.

All members who gave me a tip here and there, thank you. Thanks to the members who also charge for their services, they sent me in the right direction.

-tom