No. 2214

Bulletin #: 2214
Advanced Technical Information
Part ID: 9752
9
Macan E-box Water Intrusion Causes Electrical Errors
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
Macan
As of 2019 up to 2022
95B
N/A
N/A
Revision History
Revision
Release Date
Changes
0
May 13, 2022
Original document
Condition
The customer complains about any of multiple possible faults. These include faults for: engine, transmission, four
wheel drive, power steering, and the fuel system.
The specific faults include:
Control Unit
Fault Code
PSM
052284
052204
All-wheel drive (transfer box)
C12085
C1209D
Transmission electronics (PDK) U010000
Various ECUs
C12002 - No communication with engine electronics control unit
(DME)
U111100 - Data bus – fault value received from engine electronics
(DME) control unit
Other faults for loss of communication with PSM, DME, and AWD
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May 13, 2022
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9
Bulletin #: 2214
Advanced Technical Information
Part ID: 9752
Technical Background
This condition may be the result of water entering the e-box and causing corrosion on the contacts or splices.
When investigating, open the e-box and look for evidence of water intrusion.
See illustrations for examples.
Note the object area of the blue arrows (in figure 1) and note if there are traces of water related residue on the
bottom of the e-box (like in figure 2).
Also, look for corrosion on the contacts or splices (Figure 3).
Figure 1
Figure 2
Figure 3
Service Information
Remove existing corrosion from the splices and wiring and reattach to the e-box. Follow instructions in the attached
document. Please note: it is necessary to replace the cover for the e-box.
To open the attachment, download the pdf and click on the paperclip icon to the left of your Adobe Acrobat
window. If the paperclip is not visible, pass your mouse pointer over the lower part of the Acrobat window 			
and the Acrobat toolbar should appear as seen below. Click on the Acrobat icon on the far right to access 			
the paperclip, then click on the paperclip to open the attachment.
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May 13, 2022
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Bulletin #: 2214
Advanced Technical Information
Part ID: 9752
9
Warranty
As always, please document the repair completely in PCSS.
For this repair, please code the “cause” as follows:
Cause location:		
97930 Central electrical system cover
Cause symptom:
5000 Leaks
Use the following troubleshooting labor operation: (Examples)
97450199		Wiring diagnosis
97840900		
Fuse box loosened and fastened
97454199		Wiring repair
97920199		
Test all fuses + ground points
97521999		
Wiring trace and repair
97524199		Repair wiring
97194299		
Rep corroded wires to CUs
97090199		
Check the joint connection for main harness for short/op
97090901		
Main wire harness loosened and fastened
97094199		
AT85TU : Harness open, search for splices Fix the splice
97094199		
AT55TU: Harness closed and isolate with tape
97094199		
Wire harness repair, main harness to fuse box
Important disclaimer: Actual time must be supported by a separate identifiable punch on the repair order for each
time claimed. The actual time claimed for the listed labor operations must be fair, realistic and justified based on the
technicians separate, identifiable punch.
Search Items
Macan, E-Box, Corossion, wiring diagnosis, splice, fuse box, harness, joint connection, crimp faulty, engine wire
harness, water, intrusion, residue
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.
6000012171
©2022 Porsche Cars North America, Inc.
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