122-W4G8S-10

Advanced Technical Information
Battery Maintainer is Ineffective When Vehicle Sleeps
981, 982, 991
1707 9035
9
Binder - Advanced Technical Information
Attention:		 Service Personnel
Vehicle Type:		Boxster/Cayman (981, 982), 911 Carrera (991)
Model Year: 		
2014 - 2017
Customer Concern:	The customer reports that the Porsche Tequipment battery maintainer does not trickle charge
the 12 V starter battery. The battery voltage becomes too low to start the vehicle.
Technical Concern:	By design, the vehicle gateway allows certain vehicle features to time-out, in stages. This allows the vehicle to sleep. One feature that can time-out is the 12 V DC power point (cigarette
lighter) in the center console area. One of the recommended methods of using the battery
maintainer is to plug the battery maintainer into this power point. If this power point becomes
disabled, it will not allow current flow from the battery maintainer to the vehicle, the vehicle
battery will not trickle charge, and the battery maintainer will eventually shut off.
Service Information:	It is recommended that the customer A) locks the vehicle door when leaving the vehicle after
setting up the battery maintainer or B) directly connects the battery maintainer to the recommended battery charge points using optional alligator clips.
			As always, be sure to document the complaint completely in PQIS. For this repair, use the
following coding for the cause:
			
Cause Location:
			Cause Symptom:
09060 Battery charger
9731 Other
Dr. Ing. h.c. F. Porsche AG is the owner of numerous trademarks, both registered and unregistered, including without limitation the Porsche Crest®, Porsche®, Boxster®, Carrera®, Cayenne®,
Cayman®, Macan®, Panamera®, Speedster®, Spyder®, Tiptronic®, VarioCam®, PCM®, PDK®, 911®, RS®, 4S®, 718®, 918 Spyder®, FOUR UNCOMPROMISED®, and the model numbers and
distinctive shapes of the Porsche automobiles such as, the federally registered 911 and Boxster automobiles. The third party trademarks contained herein are the properties of their respective owners.
Porsche Cars North America, Inc. believes the specifications to be correct at the time of printing. However, specifications, standard equipment and options are subject to change without notice. Some
options may be unavailable when a car is built. Some vehicles may be shown with non-U.S. equipment. Please ask your authorized Porsche dealer for advice concerning the current availability of options
and verify the optional equipment that you ordered. Porsche recommends seat belt usage and observance of traffic laws at all times.
©2017 Porsche Cars North America, Inc.
AfterSales
September 26, 2017
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