No. 2016.2

9
Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
Troubleshooting AC Charging
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
Taycan (J1-I)
As of 2020
Y1A, Y1B, Y1C
N/A
N/A
Panamera (G2-I)
As of 2021
971
N/A
E-Hybrid Variants
Cayenne (E3-I)
As of 2020
9YA, 9YB
N/A
E-Hybrid Variants
Revision History
Revision
Release Date
Changes
0
October 13, 2020
Original document
1
October 13, 2021
MY extension
2
November 6, 2023
Complete ATI update incl. Title, Vehicles Affected, Condition, Technical
background, and Service Information
Condition
Duplication and diagnosis of customer AC charging complaints can be difficult without detailed information from
the customer and the charging hardware provider. The following documentation aims to assist Porsche Center
service and support personnel with relevant and necessary information to assist customers with AC charging 		
complaints.
Technical Background
The level of data captured differs amongst the various charging components offered by Porsche.
Diagnosis of the Porsche Mobile Charger (PMC) labeled the Porsche Universal Charger (PUC)) and the Porsche
Mobile Charger Plus (PMC+) must be performed using the PIWIS Tester and diagnostic adapters provided as
Porsche Special Tools.
The Porsche Mobile Charger Connect (PMCC) control unit is equipped with additional sensors and function
monitors. Diagnostic information, event logs, and diagnostic trouble codes (DTCs) can then be accessed through
the PMCC Web Application (accessible through local IP query or the PMCC Hotspot) in addition to using the PIWIS 		
Tester and diagnostic adapters provided as Porsche Special Tools.
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9
Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
Electric Vehicle Supply Equipment (EVSE) from Porsche
Device Name
Acronym
Internal Name
Supplier
EVSE Generation
Porsche Universal Charger
PUC
Basic Plus - 001
Heidelberger Drück GmbH
1
Porsche Mobile Charger /
Porsche Universal Charger
PMC / PUC
ICCPD-Basic
Aptiv Services Deutschland GmbH
2
Porsche Mobile Charger
Plus
PMC+
ICCPD-Basic Plus
eSystems GmbH
2
Porsche Mobile Charger
Connect
PMCC
ICCPD-High
eSystems GmbH
2
Porsche Wall Charger
Connect
PWCC
UL-Wallbox
eSystems GmbH
2
Service Information
Documentation and reference information in other systems must be reviewed and understood before diagnosing 		
customer concerns.
•
E-Performance Help & Contact webpage contains media and service information useful to Porsche Centers 		
		and customers:
		•
Video tutorials
		•
Porsche Charging Hardware Instructions and Installation Manuals
			
Porsche Mobile Charger Connect - Operating instructions (PDF; 1.7 MB)
			
Porsche Mobile Charger Plus - Operating instructions (PDF; 1.4 MB)
			
Porsche Mobile Charger - Operating instructions (PDF; 1.3 MB)
			
Porsche Wall Charger Connect - Operating and Installation Manual (PDF; 1.7 MB)
			
Porsche Wall Charger Connect - Cut Sheet (PDF; 4.7 MB)
			
General Precautions on Charging Hardware Installation (PDF; 6.8 MB)
			FAQs
		•
Charging Hardware Software Updates
			
This website provides the latest published Communication Board (“CommBoard”) Software
				
(SW_C) available for the Porsche Mobile Charger Connect (PMCC) and Porsche Wall
				
Charger Connect (PWCC) can be downloaded from this website
			
Updates for other charging hardware, when available, may is only be possible at the Porsche
				Center
			
The website also provides service campaign information for charging hardware, where 		
				applicable
			
In all cases, update of the PowerBoard Software (SW_P) can only be performed by autho				
rized service centers using the Porsche Diagnostic Tester (e.g., PT4G)		
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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•
PCSS
		
•
Workshop Manual → Group 99 “Entire Vehicle – General” → 9981 AC charging cable
			
Applies to 2nd-generation Porsche charging hardware
		
•
Workshop Manual → Group 0 “Entire vehicle – General” → 09 Porsche system components → 0940 		
			High-voltage charging cable
			
Applies to 1st-generation Porsche charging hardware
•
PIWIS Tester contains diagnostic tools and information for Porsche charging hardware
		
•
PT4G → Fault finding → Guided fault finding → Model line: External components → Control unit: 		
			
Universal charging cable → Control unit variant [select the appropriate hardware variant]
		
•
PT4G → Diagnosis → Manual model line selection → External components → External components 		
			
with direct connection to the charging hardware in conjunction with Special Tool VAS 611 009
•
SoliD (Solutions for integrated Diagnosis)
		
•
Accessed via PPN → Online Systems → SoliDd
		
•
This is a global system with global documents; not all information applies to the US / Canadian 		
			Markets
		
•
The information in SoliD may be duplicated from other sources (like this ATI), and SoliD often links 		
			to external information
		
•
SoliD provides Porsche Center service and support personnel and call center agents with customer 		
			
concerns related to digital services (e.g. Porsche Connect; Porsche infotainment; AC Charging; DC 		
			
Charging; charge point operations within the Porsche Charging Service)
•
PMCC/PWCC Web Application
		
•
The PMCC/PWCC Web Application can provide insight into customer complaints concerning HV 		
			
Charging, the vehicle, and the hardware itself
		
•
When the device is powered up and connected to a network, the customer can use the Web 		
			
Application to directly monitor the device, view past and present charging session information, and 		
			control device settings
			
Refer to the section “Logging into the Web Application” for information on how to access this 		
			system
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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Diagnostic Troubleshooting Tips
•
AC charging concerns should be checked with customer-supplied charging hardware (supply cable, charge 		
		
control unit, and vehicle cable, for example)
		
•
The infrastructure that supplies customer homes and garages often differs from the infrastructure
			
in a Porsche Center or other commercial building. For example, customer homes are typically
			
single-phase and operate at 240 VAC, whereas commercial buildings are often three-phase and
			
provide split-phase to 208 VAC circuits and receptacles in the workshop. This change in operating
			
voltage affects AC charging hardware operation and overall charging power, for one.
		•
Ground Faults
			
Underwriter Laboratory (UL) requirements define ground
				
fault and residual current detection capabilities for EVSEs.
				
The charge control unit is extremely sensitive to ground
				
faults in the supply infrastructure.
			
The self-test function of typical residential GFCI receptacles
				
can cause ground faults. GFCI receptacles or circuits are a
				
common code requirement, especially in residential garages
				
and damp or wet locations.
			
A qualified electrician may need to ensure the quality of the
				
complete electrical system grounding and bonding (metal
				
underground water pipes, in-ground support structures, or
Figure 2
				concrete-encased electrodes, for example)
•
Industrial quality electrical receptacles should always be installed by qualified electricians in accordance 		
		
with national and local codes and regulations.
		
•
Receptacles from the supplier Hubbell are recommended for their industrial quality and ability to 		
			
handle high current for long periods of time (see Figure 2)
		
•
Hubbell HBL9450A = NEMA 14-50 Receptacle (4-prong)
		
•
Hubbell HLB9367 = NEMA 6-50 Receptacle (3-prong)
•
A 50-amp branch circuit should use minimum 6 AWG, 90°C-rated copper wire for conductors supplying 		
		
level 2 Porsche charging hardware plugged with a NEMA 14-50 or 6-50 supply cable
•
Receptacle terminal screws must be tightened to manufacturer specifications
		
•
This is an often-overlooked step of the installation process
•
The use of ferrules on the supply conductor wiring is recommended to further safeguard the connection at 		
		the receptacle
•
110V Charging is for emergency use only. The relatively high current (8A to 10A) loads household circuits 		
		
and receptacles for an extremely long time
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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•
Charging hardware will normally reach high temperatures during prolonged use
		
•
High ambient temperature may cause stopped, slowed, or derated charging sessions
		
•
The optional Charging Dock (7PP.915.706.A) traps multiple heat sources (receptacle, plug, supply 		
			
cable, charge control unit, and part of the vehicle cable) and may exacerbate charger derating or 		
			stopped charging sessions
		
•
The optional 7.5m vehicle cable is often wrapped around the charging dock. This further heats the 		
			
charging dock during/after prolonged use, especially if the vehicle is parked close to the charging 		
			
dock where less vehicle cable is needed.
		
•
The 10 AWG supply cables are tested and certified for use in US and Canada, and may differ from 		
			
other cord-and-plug EVSEs readily available in the market
		
•
It is recommended to install or relocate installed charging hardware away from vehicle heat sources
			
or heat exchanger exhaust air (for example, away from the Taycan front wheel opening)
Reading Diagnostic Trouble Codes (DTCs) from the PMCC and/or PWCC
Hardware needed:
•
For PMCC Diagnosis
		
•
PMCC Power Supply Cable (either 110V or 208-240V supply cable will work)
		
•
PMCC “control unit” (the main charger unit)
		
•
A PC or Smartphone
•
For PWCC Diagnosis
		
•
A PC or Smartphone
Accessing DTCs in PMCC and PWCC:
1.
Power up the device
		
a.
NOTE: If ‘energy saver’ mode is active, it will go to sleep and not be remote accessible after a few 		
			
minutes. Recommend switching off ‘energy saver’ mode during diagnosis.
2.
Use the charger controls to access Network Settings -> turn WiFi On and Hotspot On
		
a.
Write down the PMCC/PWCC Hotspot Name and IP address
3.
Using a PC or Smartphone, search for available WiFi networks and connect to the Hotspot (e.g., Network: 		
		ICCPD-000*SERIALNUMBER*)
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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4.
Open your internet browser (i.e. Chrome, Safari, Firefox) and go to 192.168.0.1
		
a.
NOTE: When logging in via private or local IP address, a security warning may be shown on the 		
			
browser. In the warning message in your browser, select Advanced then Add exception (or similar). 		
			
The SSL certificate is confirmed and the browser opens the web application
		
b.
Afterwards, the following site will open (see Figure 3)
Figure 3
5.
Log into the Web App as Customer Service (see “Logging into Web Application” section)
6.
DTCs from the Web Application
		a.
Go to Settings ->Service and scroll down to Event log (see Figure 4)
		
b.
Click the hyperlink for each DTC and save DTC data as needed (see Figure 5)
			
This data can also be copied & pasted into a notepad or document to be saved & shared (just be 		
			sure to capture all DTC information)
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
Figure 4
9
Figure 5
The 110V supply cable (NEMA5-15) provided with Porsche hardware includes a temperature sensor. A temperature
sensor is planned for future integration into 208-240V supply cables (NEMA6-/14-30/-50). With this temperature sensor, devices with compatible SW_C and/or SW_P are able to monitor plug temperature and derate/switch 		
off in the event of overheat.
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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The PMCC Web App - Customer Service Operating Manual (linked above), page 8, provides an indication on “Service
derated” messages (diagnostic background requested for messages and how they might relate to Event Log DTCs):
Service derated - This list indicates which sensors have restricted charging capacity due to overheating:
— 0: Overheating microcontroller
— 1: Overheating relay
— 2: Internal overheating
— 3: Overheating infrastructure cable, sensor 1
— 4: Overheating infrastructure cable, sensor 2
PMCC Event Log and DTCs
•
Detailed environmental data associated with ICCPD faults is typically found within the Event Log accessible
		
via the Web App [Customer Service --> Settings --> Service --> Event Log]
•
DTCs can also be read out as a Fault Code using the PT4G and special tool VAS 611 009, but with the fol		
		lowing discrepancies
		
•
Fault Titles may be incomplete, unclear, and/or not in English
		
•
Fault Environmental Data stored at the time of the fault occurrence (see Figures 6-8) may not be 		
			
relatable to a corresponding Working Log
		
•
Figures 6 and 7 show the PT4G fault memory; Figure 8 shows the Working Log
Figure 6
Figure 7
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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Figure 8
			•
DTC Status Codes
				1 = Unknown
				2 = Unset
				3 = Active
				4 = Passive
Figure 9
Figure 10
			Note: The Time/Date Stamps of all DTCs in Passive Event Logs is the Time and Date when the DTC
			
was read out, not the Time and Date the error occurred. Therefore, additional information about
			
which error occurred at which time cannot be determined from this DTC information. This is a veri			
fied bug in the diagnostic information; no bugfix is communicated at this time.
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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Figure 11
Example: Charger Derating Due To Internal Overtemperature
The supply equipment control unit is equipped with various temperature sensors and function monitors. If the device detects overheating, for example, then charging current can be automatically reduced for a period of time.
Example Case:
The PMCC was left in direct sunlight while charging at 40A / 9.6 kW. The device automatically derated to 0.0 kW 		
charge rate and displayed the red “Limited service” message shown here. 1 minute later, the device automatically
increased charge rate to 6A / ca. 1.42 kW and presented as indicated in the “Derated” screen shown here. The device was then moved from direct sun to shade and proceeded to automatically increase charge rate until it returned
to 40A / 9.6 kW. The total time period for the entire derating session was 13 minutes and is indicated by the graph 		
in Figure 10 from the PMCC Web App.
Figure 12
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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Logging into the Web Application
The passwords required to access the PMCC and PWCC Web App as Home User or Customer Service can be found 		
multiple ways:
1.
Printed on the “Letter containing access data” (F in Figure 14) included with new vehicle purchase -or		
provided with a PMCC purchased via Porsche Parts
2.
Via the SoliD portal, accessible by certain Technical Support and Call Center personnel
3.
Via PCSS --> Vehicle --> Charging Products
Note: terminology for the User and Passwords will differ depending upon the source. (See Figure 13)
Figure 13
Figure 14
Security Warning when logging into Web Application
When logging in via a private IP address (also known as Local or Internal IP addresses), a security warning may be 		
shown on the internet browser. It can be similar to when Windows asks if you “trust” opening a file from a network 		
drive or emailed from a colleague, this security warning can generally be ignored.
1.
In the warning message in your browser, select Advanced
2.
In the next dialog box, select Add exception. The Secure Sockets Layer (SSL) certificate is confirmed, and 		
		
the web application opens.
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Bulletin #: 2016.2
Advanced Technical Information
Part ID: 9981
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Warranty
No warrantable work is described herein.
Search Items
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PMCC, Porsche Wall Charger Connect, PWCC
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.
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