No. 2328.1

6
Bulletin #: 2328.1
Advanced Technical Information
Part ID: 6454
Macan /Cayenne – Front Window Motor Without Function
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
Macan
2020 - 2023
95B
N/A
N/A
Cayenne
2020 - 2023
9YA, 9YB
N/A
N/A
Revision History
Revision
Release Date
Changes
0
October 19, 2023
Original document
1
March 18, 2024
Update of Warranty Information
Condition
The customer states that the driver or passenger door window does not open.
The workshop finds one or some of the following fault codes stored in the Front door control unit:
Macan:
•
Front door 00083F – Power window motor, mechanical fault
Cayenne:
•
Door on driver’s/passenger’s side, front B148729 – Window regulator motor, Implausible signal
•
Door on driver’s/passenger’s side, front B14874B – Window regulator motor, Excess temp.
		NOTE: The Cayenne includes “play protection” logic in the window motors, to prevent overheating
			
due to misuse (e.g., a child playing with the window switches). The fault B14874B will set if the
			
motor is actuated several times in quick succession.
Technical Background
This issue is still under investigation by Porsche.
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Mar 18, 2024
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Bulletin #: 2328.1
Advanced Technical Information
Part ID: 6454
6
Service Information
1.
Create a VAL to document the present fault code(s).
2.
		
Visually inspect the window guide seal on the door for any dirt or other abnormalities that may lead to in		
creased friction between the window pane and the seals. Please document any abnormalities.
3.
		
If the window functions upon arrival to the workshop, measure the power consumption of the window motor
during automatic window operation.
		a.
		
•
			
			
		
•
			
			
			
Macan
Using the PIWIS Tester, navigate to: Front door (driver’s/passenger’s door) → Actual values/input 		
signals → All, then select the values:
Power window position, Power window motor temperature, and Supply voltage
With the combustion engine running, operate the window automatically for 5 cycles (i.e., 5 times 		
up, 5 times down), and pay attention to the Actual values.
=> The Supply voltage should drop by approximately 0.3 V (300 mV) during operation
=> Record the calculated motor temperature before and after 5 cycles
		b.
		
•
			
			
			
		
•
			
			
Cayenne
Using the PIWIS Tester, navigate to: Door on driver’s/passenger’s side, front → Actual values/input 		
signals, then select the values:
Front window regulator status, driver/passenger side: Window position, Front window regulator 		
status, driver/passenger side: Motor current
With the combustion engine running, operate the window automatically for 3 cycles (i.e., 3 times 		
up, 3 times down), and pay attention to the Actual values.
=> The Motor current should remain in the range specified in the PIWIS Tester
		NOTE: Leave the window in the lowered position after monitoring the window motor function in the PIWIS 		
		
Tester. This position will be most convenient for the subsequent work.
4.
		
Remove the door panel from the door of the affected window, as instructed in WM 705919 – Remove and 		
install front door panel.
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Mar 18, 2024
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Bulletin #: 2328.1
Advanced Technical Information
Part ID: 6454
6
5.
Remove the large rubber cover towards the rear of the door to gain access to the rear part of the window 		
		regulator mechanism.
Figure1
6.
Remove the window motor as instructed in WM 645419 – Removing and installing power window motor.
7.
Remove the low-frequency loudspeaker (subwoofer) from the door frame as instructed in WM 914119 		
		
Removing and installing front loudspeakers to gain access to the front part of the window regulator
		mechanism.
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Mar 18, 2024
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Bulletin #: 2328.1
Advanced Technical Information
8.
		
Part ID: 6454
6
Inspect the window regulator mechanism and the window motor for excess tension, dirt, or wear. Ensure 		
that the window regulator mechanism is easy to move. Clean the window regulator mechanism as needed.
Figure 2
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Mar 18, 2024
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9.
		
10.
6
Bulletin #: 2328.1
Advanced Technical Information
Part ID: 6454
If there are no faults in the window guide seals or the window regulator mechanism, the window 			
regulator motor must be replaced per WM 645419 – Removing and installing window regulator motor.
Please completely document the findings to all above steps in the PCSS job.
Warranty
As always, please document the repair completely in PCSS.
For this repair, please code the “cause” as follows:
Cause location:
6454 Power windows motor
Cause symptom:
1611 No function
Use the following labor operations as needed:
70591901
Front door panel remove and reinstall (driver side)
70591902
Front door panel remove and reinstall (passenger side)
64549590
Power windows motor troubleshooting
•
NOTE: Up to 20 TU may be claimed for work performed in Service Information steps 2, 3, 5, and 7.
64541951
64541952
Power windows motor remove and reinstall (driver side)
Power windows motor remove and reinstall (passenger side)
Additional labor operations may be claimed only as needed.
If there is no functional defect found, the working steps as described in this ATI are excluded from Warranty and 		
Goodwill.
Search Items
Cayenne, Macan, window motor, 083F, B148729, B14874B, door window, regulator
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.
K17357/K17470
©2024 Porsche Cars North America, Inc.
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