No. 2318

0
Bulletin #: 2318
Advanced Technical Information
Part ID: 0940
Porsche Wall Charger Connect - Ground Fault Troubleshooting
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
Taycan
As of 2020
Y1A, Y1B, Y1C
N/A
N/A
Panamera
As of 2017
971
N/A
PHEV models
Cayenne
As of 2019
9YA, 9YB
N/A
PHEV models
Revision History
Revision
Release Date
Changes
0
August 21, 2023
Original document
Condition
Customers with the hard-wired Porsche Wall Charger Connect (PWCC,
Part Number 9J1.068.209) report ground fault errors and ask for warranty
service or replacement.
Technical Background
Ground faults are typically due to installation errors.
AfterSales
Aug 21, 2023
Page 1 of 2
0
Bulletin #: 2318
Advanced Technical Information
Part ID: 0940
Service Information
An electrician should check the following prior to replacing the unit:
1.
Dip switches
2.
		
		
		
		
Voltage measurements should be within 10% of the network type selected (120, 208, 240) and within 10%
of each other for all 3 measurements:
a.
L1 -> L2
b.
L1 -> G
c.
L2 -> G
3.
		
		
Ground inspection:
a.
Must be directly to earth ground, e.g. no floating neutrals, junction points, or pipe grounds
b.
Ensure the charger is not installed on a high-leg (delta transformer configuration)
4.
Ensure proper wire gauge for the electrical load and length of the run (L1, L2, G)
Search Items
Porsche Wall Charger Connect; ground fault
Important Notice: Technical Bulletins issued by Porsche Cars North America, Inc. are intended only for use by professional automotive technicians who have attended Porsche service training courses. They are
written to inform those technicians of conditions that may occur on some Porsche vehicles, or to provide information that could assist in the proper servicing of a vehicle. Porsche special tools may be necessary in
order to perform certain operations identified in these bulletins. Use of tools and procedures other than those Porsche recommends in these bulletins may be detrimental to the safe operation of your vehicle, and
may endanger the people working on it. Properly trained Porsche technicians have the equipment, tools, safety instructions, and know-how to do the job properly and safely. Part numbers listed in these bulletins
are for reference only. The work procedures updated electronically in the Porsche PIWIS diagnostic and testing device take precedence and, in the event of a discrepancy, the work procedures in the PIWIS Tester
are the ones that must be followed.
©2023 Porsche Cars North America, Inc.
AfterSales
Aug 21, 2023
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