No. 2125-1

2
Bulletin #: 2125
Advanced Technical Information
Part ID: 2804
992 Ignition Lock Warning Along with Fault Code B143C29
Vehicles Affected
Models
Model Year
Model Type
VIN Range
Vehicle-Specific Equipment
911 Carrera
As of 2020 up to 2021
992
N/A
N/A
Revision History
Revision
Release Date
Changes
0
October 14, 2021
Original document
Condition
The customer reports an ignition lock warning present in the instrument cluster. The workshop confirms this
warning along with fault code B143C29 in the rear BCM.
Technical Background
The ignition switch has a mechanical problem. The spring-force pins do not produce good electrical contact to the
circuit board. This leads to the fault and warning.
Condition
Porsche is working to release updated parts. When these are available, we will update this document. Until then, do
not replace parts. This will not fix the issue.
You can verify solid electrical connectivity and proper pin tension. This may mitigate the issue in some cases.
Search Items
Ignition lock, ignition switch, rotor, dummy, key
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.
6000012936
©2021 Porsche Cars North America, Inc.
AfterSales
Oct 14, 2021
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