Porsche Panamera 4 E-Hybrid 971 2017 Technical Service Information

Technical Information
Complaint – Charging is Canceled / Check Engine Warning Light is Active: Re-Program
High-Voltage Charger (OBC) Control Unit (36/21)
Panamera 4 E-Hybrid (971)
Vehicle Type:
Panamera 4S E-Hybrid (971)
Panamera Turbo S E-Hybrid (971)
As of 2017
Model Year:
Concerns: High-voltage charger (OBC) control unit
Information: Charging of the high-voltage battery is cancelled and the Check Engine warning light comes on in the
instrument cluster. In many cases, it may be possible to continue charging the vehicle once the vehicle
plug has been disconnected and then re-connected to the vehicle.
This fault is caused by voltage fluctuations in the supply network (e.g. the domestic connection) to which
the high-voltage battery charger is connected.
The entry 'B200000 – Control unit, function restriction (E10105)' is stored in the fault memory
of the high-voltage charger (OBC) control unit as an active fault memory entry, which cannot be deleted
initially. As a result, the Check Engine warning light is not deactivated.
Action required: In the event of a customer complaint, re-program the high-voltage charger (OBC) control unit using the
relevant programming code.
Information
• Control unit programming sets the fault memory entry 'B200000 – Control unit, function restriction
(E10105)' to passive, which can then be deleted.
• We are currently working on a software solution that permanently corrects the fault type described
here. As soon as it becomes available, this Technical Information (TI) will be updated accordingly.
• Replacing the control unit will not correct the problem because the parts that are currently available
use the same software as the control unit that was the object of the complaint.
Information
Please inform the customer that until such a time as the software is updated, we cannot rule out the possi-
bility that the fault will occur again on the same charging connection as before.
Remind the customer to use another charge connection until further notice, if possible.
Required tools
Tools: • Battery charger with a current rating of at least 90 A, e.g. VAS 5908 Battery charger 90A
• 9900 - PIWIS Tester 3 with PIWIS Tester software version 39.900.100 (or higher) installed
AfterSales
Service
36/21
2797
ENU
Mar 19, 2021
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