Blank Screen JLR Troubleshooting chart: - Jaguar I-Pace EV400 Forum
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post #1 of 36 (permalink) Old 01-16-2019, 01:45 PM Thread Starter
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Blank Screen JLR Troubleshooting chart:

If you feel brave, this was released on 16 DEC 2018. They still do not know the true cause of the Blank Screens. They are collecting surveys from techs who are working on the cars to try and isolate it. But to try and 'fix' the problem, JLR is telling their techs to:

Reset Procedure:

1) IDMA Reset:
Pull Fuse 1 (15A) from the QUIESCENT CURRENT CONTROL MODULE, located Right Hand rear quarter trim panel
If this resolves the issue please, reset is complete.
If issue is still present continue with step 2

2) IMC Reset:
Pull Fuse 5 (15A) from the QUIESCENT CURRENT CONTROL MODULE, located Right Hand rear quarter trim panel
If this resolves the issue please, reset is complete.
If issue is still present continue with step 3

3) SICP Reset:
Pull Fuse 15 (15A) from the QUIESCENT CURRENT CONTROL MODULE, located Right Hand rear quarter trim panel
If this resolves the issue please, reset is complete
If issue is still present continue with step 4


4) Quick power mode cycle:
Turn Ignition off
Wait for 15 seconds
Turn Ignition On
If this resolves the issue please, reset is complete
If issue is still present continue with step 5

5) Quick sleep cycle:
Turn Ignition off
Single lock vehicle
Wait for 10 mins
Enter Vehicle
Power on vehicle. Start vehicle (Press brake pedal, Ignition on).
If this resolves the issue please, reset is complete
If issue is still present continue with step 6

6) Battery hard reset:
Remove 12V Main battery (T4) negative terminal.
Wait for 10 seconds.
Connect 12V Main battery (T4) negative terminal.
If this resolves the issue please, reset is complete.

Still nothing? Escalate.
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post #2 of 36 (permalink) Old 01-16-2019, 05:34 PM
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Do you have any pictures of this module, and how the fuses are numbered? I see two boxes behind the cover that have fuses in them, neither have fuse numbers on them.
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post #3 of 36 (permalink) Old 01-16-2019, 06:02 PM
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I tried pulling the 3 fuses I circled in the photo, but no luck. No luck with steps 4 and 5 either. That leaves step 6, disconnecting the negative on the 12V battery. But it's raining too hard right now so I'll try that later.
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post #4 of 36 (permalink) Old 01-16-2019, 06:16 PM Thread Starter
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Quote:
Originally Posted by herbie4 View Post
Do you have any pictures of this module, and how the fuses are numbered? I see two boxes behind the cover that have fuses in them, neither have fuse numbers on them.
I can't find maps in either the Owner's Manual or Service Manual, just lists of fuses and fuse box locations.
Did you look at the bottom of the cover? Many cars have a map underneath the cover.

There are 5 fuse boxes. One you do NOT play with (center under bonnet).
Left and right sides under bonnet.
Under rear seat.
Right side of the cargo area.
Your owners manual shows where these are.

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post #5 of 36 (permalink) Old 01-16-2019, 06:32 PM
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When I checked the owner's handbook it mentioned one loadspace fuse box, but there are two. The one in the manual doesn't list a fuse in position 15, and fuse 1 is 20AMP, so I figured it was the other box. Googling for "i-pace quiescent current control module" got https://www.ebay.co.uk/itm/JAGUAR-I-...-/163121346422 as the first hit and the module in the photo matches the second module (towards the rear) in the right rear quarter panel. Counting from bottom left to right and top right to left gave me 3 15AMP fuses in spots 1, 5, and 15. Looked like a match, but didn't help, and put a warning message on the console. Traction battery failure or something like that. I'll go drive it around for a bit to see if that clears.
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post #6 of 36 (permalink) Old 01-18-2019, 06:18 PM
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Quote:
Originally Posted by McRat View Post
If you feel brave, this was released on 16 DEC 2018. They still do not know the true cause of the Blank Screens. They are collecting surveys from techs who are working on the cars to try and isolate it. But to try and 'fix' the problem, JLR is telling their techs to:

Reset Procedure:

1) IDMA Reset:
Pull Fuse 1 (15A) from the QUIESCENT CURRENT CONTROL MODULE, located Right Hand rear quarter trim panel
If this resolves the issue please, reset is complete.
If issue is still present continue with step 2

2) IMC Reset:
Pull Fuse 5 (15A) from the QUIESCENT CURRENT CONTROL MODULE, located Right Hand rear quarter trim panel
If this resolves the issue please, reset is complete.
If issue is still present continue with step 3

3) SICP Reset:
Pull Fuse 15 (15A) from the QUIESCENT CURRENT CONTROL MODULE, located Right Hand rear quarter trim panel
If this resolves the issue please, reset is complete
If issue is still present continue with step 4


4) Quick power mode cycle:
Turn Ignition off
Wait for 15 seconds
Turn Ignition On
If this resolves the issue please, reset is complete
If issue is still present continue with step 5

5) Quick sleep cycle:
Turn Ignition off
Single lock vehicle
Wait for 10 mins
Enter Vehicle
Power on vehicle. Start vehicle (Press brake pedal, Ignition on).
If this resolves the issue please, reset is complete
If issue is still present continue with step 6

6) Battery hard reset:
Remove 12V Main battery (T4) negative terminal.
Wait for 10 seconds.
Connect 12V Main battery (T4) negative terminal.
If this resolves the issue please, reset is complete.

Still nothing? Escalate.
What is the source if this troubleshooting list? You know someone that works at Jaguar?
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post #7 of 36 (permalink) Old 01-18-2019, 11:40 PM Thread Starter
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Quote:
Originally Posted by bguidizi View Post
What is the source if this troubleshooting list? You know someone that works at Jaguar?
Jaguar Land Rover (JLR) has TOPIx as their on-line service information service. It's a subscription. I paid for a month looking for information about updates and other info. Most the information I expected to find is not there, or I can't locate it with their search function. Like the trailer hitch and wiring, how to acquire the Pathfinder tools (reprogramming), or vehicle specifications.

https://topix.jaguar.jlrext.com/topi...cle/lookupForm

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post #8 of 36 (permalink) Old 01-19-2019, 02:25 AM
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Thx for the info.
Have you had the touch screens go out and put the troubleshooting steps to use with any success?
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post #9 of 36 (permalink) Old 01-19-2019, 11:13 AM Thread Starter
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Originally Posted by bguidizi View Post
Thx for the info.
Have you had the touch screens go out and put the troubleshooting steps to use with any success?
When my touch screens first went out, all I had to do was a 100% charge, lock and unlock the car, then do a Slow Boot.
I get in, put on my belt, hold the brake and push the ON/OFF for a full 1 second. Now I wait for the car to boot up.
It will load the phone stuff, then music, then nav, then 4G, usually a Jaguar warning screen comes up, and I tap it.
I would not plug a phone into it until it's done booting, or put/remove a memory stick while booting.
When everything is up, then I put the car into gear.

Since I've been doing that, (often ignoring the 100% charge and 4G), I've had no black screens or sudden switch to Celsius on the temp knobs.

I'm very used to computers taking awhile to boot. You should see how long an iPhone takes to come on when it's been turned off. And after many years, they still have serious bugs in it.

Sadly, I remember when a 80486 booted too fast and you had a TURBO button you had to have OFF in order to get it to boot. Virtually instant. Lotus 1-2-3 spreadsheet was just over 0.1 megabytes. It fit on a floppy. I'm not convinced today's computers are much faster than what we had when it comes to Work Per Hour. We just have bigger programs that are not optimized.

Perhaps the reason the I-Pace boots slow is it does some things that some other cars do not.
1) Hotspot
2) Carplay and AA
3) Smart climate controls
4) Does the diagnostics BEFORE the motor is turned on, ICE does it afterwards. You don't want >400v active until you've checked it first. You can't check an ICE unless it's running.
5) 4 LCD displays: HUD, Dash, Center Top, Center Bottom.
6) Runs under Windows. Linux is far faster especially on multicore machines or machines with less ram.

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post #10 of 36 (permalink) Old 01-19-2019, 07:22 PM
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I would add to that that I wait until I see both screens light up before I press START.
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