[Qtown charger]

@Qtown charger For what it's worth, there is speculation out that the new software ('BT-') is now available. A screenshot of it in action is floating around the UK forums. Might want to inquire with your dealer.

Dealer says it should be available my end of month.

 

[Qtown charger]

The new software might be to correct loading issues of the previous version and will not reverse the H441 warning. Once H441 identifies a module problem the dealer needs to interrogate each module to check the status and replace module(s) or if many the complete battery.

That was my thought, but the dealer seemed to imply that a number of false positives were being thrown up by the H441 update, they had the car for 2days last week so should have at least run thru the error codes.

My surprise was that the fault showed up days after it was charged, so I'm not sure what the software is analyzing - I had assumed charging parameters and battery temp.

 

[Topdown500]

It can take up to 30 days for a fault to register or depending how often you charge. Once you get the warning the dealer will read the DTC codes and if P1B48-00 shows up then you have a Module(s) issue.

This is the DTC code Summary

Model I-PACE / X590
Model Year
'
Module - Battery Energy Control Module
DTC - P1B48-00
Description - EV Battery Voltage Deviation - No sub type information

• Electric vehicle battery module internal failure
Possible Causes


Action• Identify the defective battery module(s):


Using the Jaguar Land Rover approved
diagnostic equipment, run application -
ECU Diagnostics / Battery Energy
Control Module (BECM) / Live Data -
and select parameter - Hybrid/EV
Battery Voltage Deviation Diagnosis
(0x4A0B)The measured value is 36
pairs of digits and each pair indicates
the status of each of the 36 battery
modules. A non-zero pair denotes a
failure inside a battery module. For
example, if the sixth pair of digits is '01 ',
there is a failure inside battery module 6
1. The measured value is 36 pairs of digits and
each pair indicates the status of each of the
36 battery modules. A non-zero pair denotes
a failure inside a battery module. For
example, if the sixth pair of digits is '01 ',
there is a failure inside battery module 6
• Refer to the relevant section of the workshop
manual and install new battery modules as
necessary
• Clear the battery module diagnostic data:
Using the Jaguar Land Rover approved
diagnostic equipment, run application -
ECU Diagnostics / Battery Energy
Control Module (BECM) / ECU
Functions / Clear Selected Battery
Module Diagnostic Data. Repeat this
step for each previously defective
battery module
• Confirm that the diagnostic data has been
cleared:
Using the Jaguar Land Rover approved
diagnostic equipment, run application -
ECU Diagnostics / Battery Energy
Control Module (BECM) / Live Data -
and select parameter - Hybrid/EV
Battery Voltage Deviation Diagnosis
(0x4A0B)Every pair should be '00'. If
not, using the Jaguar Land Rover
approved diagnostic equipment, run
application - ECU Diagnostics / Battery
Energy Control Module (BECM) / ECU
Functions/ Clear Selected Battery
Module Diagnostic Data - and repeat
this step for each previously defective
battery module
1. Every pair should be '00'. If not, using the
Jaguar Land Rover approved diagnostic
equipment, run application - ECU
Diagnostics / Battery Energy Control Module
(BECM) / ECU Functions / Clear Selected
Battery Module Diagnostic Data - and
repeat this step for each previously
defective battery module
• Using the Jaguar Land Rover approved
diagnostic equipment, run application - ECU
Diagnostics / Battery Energy Control Module
(BECM) / Clear Diagnostic Trouble Codes. Set
the ignition to off and lock the vehicle. Allow the
vehicle to sleep for greater than 10 minutes to
enable the OTC to clear successfully

 

[smitty]

My kitty has been at the dealership for over two weeks now after bringing it back due to the usual issues from the H441 software update. I was contacted by Jaguar North America, and it seems a patch or new software for the 2019/2020 model years will be ready on 9/19. Meanwhile, the car still suffers from reduced range, slow charging... and of course it may catch fire. They asked if I wanted it back. Uh, no. The Disco Sport they have me puttering around in is horrific city car, but it probably won't catch fire.

It's been over two months without my kitty. At last I received news from the dealership yesterday. They are to replace the "high voltage battery cell". I'm not quite clear on his meaning, but they've received the parts and are working on the car. Apparently I'll know more Monday.

 

[CReeves]

It's been over two months without my kitty. At last I received news from the dealership yesterday. They are to replace the "high voltage battery cell". I'm not quite clear on his meaning, but they've received the parts and are working on the car. Apparently I'll know more Monday.

That’s incredible news and gives me hope. By chance do you have the part # ?

 

[sciencegeek]

I think it's safe to infer from @smitty 's description that they are swapping out one or more of the traction battery modules. Each module consists of 12 cells, and there are 36 modules. My first I-Pace had two modules replaced, for example. JLR refers to modules (incorrectly) as "cells."

 

[usarcher]

I took mine back to the dealer last night. Originally they said work would start today but it sounds like it might be pushed to Monday.

 

[smitty]

That’s incredible news and gives me hope. By chance do you have the part # ?

Nope. And my service manager has proved himself famously unresponsive so I doubt it’s worth asking. Maybe I’ll find out Monday…

 

[Gingedter]

battery status fully independently without exposing any of it to the user (until a problem is detected). Such poor software design!

 

[CReeves]

Nope. And my service manager has proved himself famously unresponsive so I doubt it’s worth asking. Maybe I’ll find out Monday…

 

[CReeves]

It’s unbelievable how they act. Like it’s our fault.

 

[JustBeingADude]

Got a reach out from the service department, they were finally instructed to do some work on the car and parts were ordered. Feeling like there's actually a finish line.

 

[rcomeau]

Just charged on my JuiceBox L2 overnight and got a Traction Battery Fault detected, OK to drive with caution this am .The car charged to 100% (despite setting the juicebox to go from 20-80%, sigh, JuiceBox software "upgrade"). Maybe it was a ground issue? Does anyone recall how long before a one-off error code clears itself? I had it happen once a year or so ago on an EA L3 and it cleared in a few minutes. I drove 30 min and restarted a few times but the error persist. Also, it seemed to chew through more battery in the commute 5% instead of the usual 2-3. Not enough to be definitive, but....

 

[usarcher]

Just charged on my JuiceBox L2 overnight and got a Traction Battery Fault detected, OK to drive with caution this am .The car charged to 100% (despite setting the juicebox to go from 20-80%, sigh, JuiceBox software "upgrade"). Maybe it was a ground issue? Does anyone recall how long before a one-off error code clears itself? I had it happen once a year or so ago on an EA L3 and it cleared in a few minutes. I drove 30 min and restarted a few times but the error persist. Also, it seemed to chew through more battery in the commute 5% instead of the usual 2-3. Not enough to be definitive, but....

Mine triggered on an over night charge though it had stopped at 92%. The fact that you are consuming more battery than usual, I would guess you are dealing with the software finding an issue and your next charge will stop when it gets to 72%. When software flags an issue the warning will not clear on its own.

 

[Trielectric]

When software flags an issue the warning will not clear on its own.

It will not clear if you disconnect both 12v batteries for a few minutes either!

 

[Topdown500]

It’s called latched protection. Software has detected a possible fault with a battery module so the dealer needs to follow the DTC code actions at post # 143 above. If there are no bad modules then the DTC can be reset.

 

[Photon2.0eV]

@rcomeau : When you indicated this happened about a year ago were you referring to your post dated 10/10/22? That happened when you charged at an EA charger and the indication was "High Voltage Fault" which cleared shortly after you drove around in the parking lot. I believe the "Traction Battery Fault" is different. Hope your current issue gets resolved shortly.

 

[Pollo de muerte]

Just charged on my JuiceBox L2 overnight and got a Traction Battery Fault detected, OK to drive with caution this am .The car charged to 100% (despite setting the juicebox to go from 20-80%, sigh, JuiceBox software "upgrade"). Maybe it was a ground issue? Does anyone recall how long before a one-off error code clears itself? I had it happen once a year or so ago on an EA L3 and it cleared in a few minutes. I drove 30 min and restarted a few times but the error persist. Also, it seemed to chew through more battery in the commute 5% instead of the usual 2-3. Not enough to be definitive, but....

As a former Honda Insight hypermiler, I watch my consumption numbers closely. I took a hit with the bigger tires, but I've gotten used to it. What I've noticed since H441 is that my m/kWh numbers look OK, but the percentage remaining on the battery is lower than usual after each commute. This is "prefect weather" time in Florida. My normal commute through the city is five miles each way. That 10-mile round trip would consistently use 4-5% of the battery, and now it more like 7-8%. I typically run the battery from 75% down to 35% before charging. With my commute and extra trips, I would charge about once per week before H441. Now it's more like every 4 to 5 days.

Even though my m/kWh numbers look decent after each trip, I've noticed that initial poor efficiency that we see on every "cold" start has gotten worse since H441. I'm wondering if part of H441 was to more aggressively manage the traction battery temperature and that is hurting efficiency on these shorter trips.

As an aside, the I Pace was never a very efficient EV, but it is still super cheap to operate compared to an ICE. My highway range has not suffered much from H441 (the larger tires were a more noticeable hit) and if I need to spend a few extra dollars a month for my regular usage, that's a small price if the traction battery is being well-maintained.

 

[rcomeau]

It’s called latched protection. Software has detected a possible fault with a battery module so the dealer needs to follow the DTC code actions at post # 143 above. If there are no bad modules then the DTC can be reset.

Thats not always the case.

@rcomeau : When you indicated this happened about a year ago were you referring to your post dated 10/10/22? That happened when you charged at an EA charger and the indication was "High Voltage Fault" which cleared shortly after you drove around in the parking lot. I believe the "Traction Battery Fault" is different. Hope your current issue gets resolved shortly.

Right, good catch! I have a message in with my service tech about getting the car in. The error message persisted today, so not a one off event.

 

[rcomeau]

As a former Honda Insight hypermiler, I watch my consumption numbers closely. I took a hit with the bigger tires, but I've gotten used to it. What I've noticed since H441 is that my m/kWh numbers look OK, but the percentage remaining on the battery is lower than usual after each commute. This is "prefect weather" time in Florida. My normal commute through the city is five miles each way. That 10-mile round trip would consistently use 4-5% of the battery, and now it more like 7-8%. I typically run the battery from 75% down to 35% before charging. With my commute and extra trips, I would charge about once per week before H441. Now it's more like every 4 to 5 days.

Even though my m/kWh numbers look decent after each trip, I've noticed that initial poor efficiency that we see on every "cold" start has gotten worse since H441. I'm wondering if part of H441 was to more aggressively manage the traction battery temperature and that is hurting efficiency on these shorter trips.

As an aside, the I Pace was never a very efficient EV, but it is still super cheap to operate compared to an ICE. My highway range has not suffered much from H441 (the larger tires were a more noticeable hit) and if I need to spend a few extra dollars a month for my regular usage, that's a small price if the traction battery is being well-maintained.

The number when I got home was more consistent with the usual round-trip, so I think it was a round-off thing (too short a trip to be statistically significant). Still have the error, so arranging to bring the car in to the dealer.