[travisjamun]

I agree on the reconnect when taking into the dealer, but so far. after almost a week of driving and I've driven into work every day this week so over 200 miles, I'm in love with the car again without start/stop engaging.

 

[andrew.black045]

I have a 2020. My module is right where the red arrow in your picture is. It is a real pain to touch. It is screwed to the back of the car, kinda behind the tail light. The screws that hold it in run front to back, not side to side. That is the same for the plugs. To plug them in you would push to the back of the car.

I hope that helps. Good luck.
This is what the module looks like. It is a bad pic, but you get the idea.

, View attachment 73424

Did you remove the whole module? Or did you just unplug the one plug with purple and white wires?

 

[Just Me]

SYSTEM INHIBITS

The Auto stop/start system is inhibited if the battery system is not capable of preventing electrical loads on the vehicle being subject to unacceptably low voltage levels during Auto stop/start operations due to a fault.

The Auto stop/start inhibit monitoring of the battery is performed by the BMS control module. If the battery voltage is too low to support an Auto stop/start, then the BMS control module will send a message to the BCM/GWM assembly on the LIN bus to suspend Auto stop/start.

The BCM/GWM monitors the battery and the VQM. Any fault found will cause the BCM/GWM assembly to inhibit Auto stop/start and the BCM/GWM assembly will record a DTC.

The module plug being removed is not to the auto start stop system at all.
The module that you are removing the small plug from is the communication connection to the (VQM) Voltage Quality Module. This module boosts the voltage drop during engine start to prevent issues with low supply voltage to other modules. Suddenly I am not so sure it's a good idea to unplug this LIN bus to the BCM. I'm going to look into it a little further to make sure I'm not solving one problem by creating another problem. This will throw codes and possibly interfere with modules when starting the car.
My suggestion if you're reading this is don't do it......

 

[Rumsby1992]

Hi mate. I’ve seen your post about stop start on the jaguar and removing the cable by the battery. I know it’s been a few years since, but did you end up noticing any other issues? I’ve got a brand new jaguar F Pace 2024 and the stop start is doing my head in. I want to do it, but am a little worried as it’s brand new !

 

[F-Pace-Bernhard]

Hi mate. I’ve seen your post about stop start on the jaguar and removing the cable by the battery. I know it’s been a few years since, but did you end up noticing any other issues? I’ve got a brand new jaguar F Pace 2024 and the stop start is doing my head in. I want to do it, but am a little worried as it’s brand new !

Try that - thats the best

You can assign the start/stop function to your diamond button on the steering wheel. One click on the button and the start/stop function is on or off.

 

[PA-FPace-F]

To be honest, I was one of the first ones to try just pulling that little cable from the battery in the boot, under the spare, on a whim from someone who had done that to disable auto/start stop on an 21 XF I believe. it worked with my 21 fine for what I think was about 4 months. What I don't know and don't remember is I believe that was during the summer since I had originally got the car in May when I got home from the a hospital stay. So it was warm and there would be no reason once I pulled that cable to leverage the heated seats or heated steering wheel.

The car work all summer that way and I was pleased, then we got to the late fall and winter and my wife noticed her heated seat wasn't working. I also noticed that the steering wheel heated wasn't working. I decided to reconnect that cable and Auto Start Stop started again and so did all the heated things in the cabin. Not too soon after that you could configure the Diamond button to disable auto start stop and my procedure has always been to start the car and then drop it in dynamic. I've simply added that when I turn the knob to dynamic, I make sure to hit the diamond to disable Auto Start Stop.

I haven't disconnected that cable or even looked to see if that cable is still there on the 25. The diamond button needs to be configured on the 25 but it's still available and my start procedure is still being followed.

One of the guys in Florida with an SVR leveraged the cable to stop auto start stop and has been running that way since I posted the procedure. Clearly in Florida leveraging those heated options in the cabin isn't so important. I don't know if he's still out here, but I know he was running with it disabled that way for probably 2 or 3 years.

If you don't need the heated things, give it a shot. I find the diamond button works just fine for me.

 

[Rumsby1992]

Thank you, very helpful. Diamond button will be the option I go with! There is a company called LR Retro Fits who come out and actually enable stop start to memorise its last setting for just £100.... I have asked about memorising dynamic mode, but no response yet.

 

[Dzionassi]

Or you can get a tune.

 

[Rumsby1992]

Or you can get a tune.

Hi, what is this please?

 

[Just Me]

FYI: that plug on the battery is the charging system current sensor. probably not the best idea to unplug it. A tune is just a euphemism for someone changing the CF file in the car's computer to kill the auto stop start. Definitely the better way to go but difficult to find someone who can actually do it. JLR won't allow their tech's to do it because it affects their fleet emissions record.
Side panel disable : as previously discussed is also a bad idea

 

[Rumsby1992]

Thanks for the info. When CF files are changed within the cars computer, does it invalidate the JLR warranty?

 

[Just Me]

Thanks for the info. When CF files are changed within the cars computer, does it invalidate the JLR warranty?

if they notice the change, which would not be easy to see, then they might try.
The Magnuson moss law prohibits them from invalidating the warranty, without explicitly, explaining how changing the CF file would cause damage to whatever part failed.
every auto maker will try to get out of the repair and it's tough on us to push back when they are out and out lying and know it. but they will try anyway just to save a buck. they usually just request all your oil change invoices and tell you you didn't service on time, it's the easy one for them.

 

[Rumsby1992]

Thank you for the help

 

[Just Me]

I will try and talk to the technician at that time about the new location of the Auto start/stop module.

there's no such thing as an auto start stop module
it is just a CF file function that checks multiple modules for a yes, no condition

 

[Dzionassi]

FYI: that plug on the battery is the charging system current sensor. probably not the best idea to unplug it. A tune is just a euphemism for someone changing the CF file in the car's computer to kill the auto stop start. Definitely the better way to go but difficult to find someone who can actually do it. JLR won't allow their tech's to do it because it affects their fleet emissions record.
Side panel disable : as previously discussed is also a bad idea

There is no such a option in CF file

 

[Just Me]

There is no such a option in CF file

I found it in my CF files. it is there but my scaner cant up date with out topix paid

 

[Dzionassi]

I found it in my CF files. it is there but my scaner cant up date with out topix paid

Maybe older model jags had it. I have CF editor and there was no such a option.

 

[Just Me]

Maybe older model jags had it. I have CF editor and there was no such a option.

I was told CF editor wouldn't work on Jaguar because the gateway won't let you change Linbus settings. are you able to change other settings and it works? I was looking into CF editor but I had heard it only changes a list that is included and It doesn't work at programming level.
does it even work on Doip protocol? curious to learn more about it. next time I have a chance I'll take a look at the CF file on my 2019.

 

[Dzionassi]

I was told CF editor wouldn't work on Jaguar because the gateway won't let you change Linbus settings. are you able to change other settings and it works? I was looking into CF editor but I had heard it only changes a list that is included and It doesn't work at programming level.
does it even work on Doip protocol? curious to learn more about it. next time I have a chance I'll take a look at the CF file on my 2019.

Yes it will work, but the CF file needs to be uploaded to pathfinder software folder before closing application.

 

[Just Me]

Yes it will work, but the CF file needs to be uploaded to pathfinder software folder before closing application.

The information updates I received said that SDD was being retired, and that Pathfinder no longer works with newer vehicles. Topix-cloud would now be required beyond a certain manufacture date. So you're saying the older pathfinder will still work on a 2021 using doip protocol ?