No. 2210

Bulletin #: 2210
Advanced Technical Information
Part ID: 4685
4
9YA – Electric Parking Brake Warning in the Instrument Cluster
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
Cayenne
2019 - 2021
9YA
n/a
All
Cayenne Coupe
2019 - 2021
9YB
n/a
All
Revision History
Revision
Release Date
Changes
0
April 13, 2022
Original document
Condition
The customer complains of a yellow warning in the instrument cluster, stating
that the electric parking brake is faulty.
This document is only applicable if no wiring damage is present, and if at least
one of the following fault codes are found in the Porsche Stability Management
(PSM) control unit:
•
C10BCF6 – Left parking brake motor, Engine speed implausible
•
C12E2F2 – Right parking brake motor, Engine speed implausible
Figure 1: Yellow Warning
in Instrument Cluster
Technical Background
The cause of this issue is currently under investigation by Porsche.
AfterSales
April 13, 2022
Page 1 of 2
Bulletin #: 2210
Advanced Technical Information
Part ID: 4685
4
Service Information
1.
If the aforementioned fault codes exist, please verify the integrity the plug connections and all wiring for the
		
parking brake motors.
2.
If no faults are found with the wiring and plug connections of the parking brake motors, please replace both 		
		
of the following parts:
		
•
9A790761600 – Electric motor
		
•
9Y0614508PY – PSM control unit (Hydraulic unit)
3.
Check the part numbers of the faulty parts. If the faulty part numbers are 9A70761600 (Electric motor)
		and 9Y0614508HY (PSM control unit), please contact Ben Leimkuehler with PCNA Quality Engineering at
		[email protected]. These parts are currently desired for analysis to support the ongoing
		
investigation mentioned earlier in the Technical Background section. Please use the subject “E3 Parking 		
		
Brake Faults – Parts for Analysis” in your email.
Warranty
As always, be sure to document the repair completely in PCSS.
For this repair, please code the “cause” as follows:
Cause location:
4685A
Electric spreader device
Cause symptom:
1611
No function
Use the following troubleshooting labor operations:
45305500 		
Hydraulic unit replace
•
Pick from one of the following, if only one parking brake motor is replaced:
		
46851951 Spreader device remove and reinstall (Left)
		
46851952 Spreader device remove and reinstall (Right)
OR
•
Use the following if both parking brake motors are replaced:
		
46852050 2 Spreader devices remove and reinstall
Additional labor operations may be claimed only as needed.
Search Items
Cayenne, E3, 9YA, 9YB, parking brake, spreader device, servo motor, PSM
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.
F14132
©2022 Porsche Cars North America, Inc.
AfterSales
April 13, 2022
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