SSM74445

7/3/2019
TOPIx - SSM74445 - Range less than expected at PDI
Reference
SSM74445
Models
I-PACE / X590
Title
Range less than expected at PDI
Category
Diagnostic Software Hardware
Last modified
06-Jun-2019 00:00:00
Symptom
000101 Diagnostic Concerns
Content
Issue:
During PDI the retailer may experience range less than expected at 100% charge, specifically this has
been reported as 325km or 201 miles which does not meet customers' expectations.
Affected Vehicle VIN Range
SADHA2B10L1F79241 – onwards
Cause:
An erroneous significant negative temperature value (-40deg) is reported by the PCM during the vehicle
manufacturing process (due to ambient temperature sensor not being fitted when PCM is first powered).
This causes the climate system to send a very high predicted electrical load to the PCM (~5kW vs a more
typical 0.5kW).
The PCM uses this load prediction to calculate a negative offset to the predicted range which is then
stored in memory to avoid range changes between drive cycles. Any changes to this offset are heavily
filtered and, as such, the range will be incorrectly reduced below the expected figure for approximately the
first 11 hours of driving.
A range reset will not cure this as the climatic load offset is not cleared during this procedure (only the
historic energy consumption is reset).
Action/Diagnostic Procedure:
CAUTION:
This procedure requires a minimum of Pathfinder version 235 loaded or a later.
NOTE:
The Jaguar Land Rover (JLR) approved diagnostic equipment will read the Vehicle Identification Number
(VIN) for the vehicle and automatically take the vehicle out of ‘Transportation mode’ if required.
1. Connect the JLR approved battery support unit.
Notes:
This workaround will load a software file to Jaguar Land Rover (JLR) Approved Diagnostic Equipment
using the Manual Patch Update process.
This Manual Patch will not stay on the JLR Approved Diagnostic Equipment and will need to be re-applied
https://topix.landrover.jlrext.com/topix/content/document/view?id=994479
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7/3/2019
TOPIx - SSM74445 - Range less than expected at PDI
every time.
2. Restart the JLR Approved Diagnostic Equipment.
3. Select ‘Manual Patch’ Icon on the Application Launcher screen. Make sure that both Symptom Driven
Diagnostics (SDD) and PATHFINDER are closed before opening the Manual Patch downloader.
4. A pop-up will be displayed for Manual Patch downloader
5. Enter ‘MP_PF_ER_L0058’ in the Patch Name field.
6. Select ‘Start’.
7. The Manual Patch downloader will then download the manual patch.
8. When the patch download has completed, a message will be displayed, asking the user to confirm that
the application can run the manual patch. Select ‘Yes’.
9. When complete, the following message will be displayed: ‘Successfully downloaded and started
manual patch. Please make sure that the patch has been installed successfully.’ NOTE: This message
will end after 10 seconds.
10. Connect the JLR approved diagnostic equipment to the vehicle and begin a new session (do NOT
restart the JLR Approved Diagnostic Equipment at this point.)
11. Follow the JLR approved diagnostic equipment prompts.
12. Select 'ECU Diagnostics'
13. Select 'Powertrain Control Module [PCM]'.
14. Select 'Update ECU'. (Note: This will load an earlier level of PCM software to the module.)
15. Follow all on-screen instructions to complete this task.
16. When all of the tasks are complete, exit the session.
17. Restart the JLR Approved Diagnostic Equipment (this step will automatically remove the manual
patch).
18. Start a new diagnostic session.
19. Follow the JLR approved diagnostic equipment prompts.
20. Select 'ECU Diagnostics'
21. Select 'Powertrain Control Module [PCM]'.
22. Select 'Update ECU'. (Note: This will load the latest level of PCM software to the module.)
23. Follow all on-screen instructions to complete this task.
24. When all of the tasks are complete, exit the session.
25. Disconnect the JLR approved diagnostic equipment and the JLR approved battery support unit.
26. Perform a Battery Range Reset: Turn Ignition on, press and hold Brake pedal and Accelerator Pedal
simultaneously, look at Instrument Panel Cluster (IPC) and monitor range value. The range value will
change within 10 second.
27. Confirm that original concern has been rectified.
Your support in this investigation is greatly appreciated, JLR will update this communication as a solution
is developed.
https://topix.landrover.jlrext.com/topix/content/document/view?id=994479
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