122-W6E3D-03
Service Bulletin Details
Public Details for: 122-W6E3D-03
No cooling in the passenger compartment. Note: a low state of charge of the high voltage battery can cause the ac to be deactivated until the state of charge increases to an adequate level. Customers who do not plug their vehicle in on a
Models from 2016
2016 PORSCHE CAYENNE S E-HYBRID |
2016 PORSCHE PANAMERA |
Advanced Technical Information PHEV AC Shut Off Valves Diagnosis 8 CAY, PNM 8700 1701 Binder – 8 – Air Conditioning Vehicle Type: Cayenne S E-Hybrid, Panamera S E-Hybrid Model Year: 2015 - 2017 Information: Diagnosis information for the air conditioning chiller and evaporator shut off valves. Symptom: No cooling in the passenger compartment. NOTE: A low state of charge of the High Voltage Battery can cause the AC to be deactivated until the state of charge increases to an adequate level. Customers who do not plug their vehicle in on a regular basis may have this issue. There are two shut off valves in the refrigeration circuit. 1. The chiller shut off valve is normally open and requires 12V be applied to it from the AC control unit to close it. This would stop cooling of the high voltage battery. a. Power and ground from the AC CU can be checked at the connector of the valve. 2. The evaporator shut off valve is normally closed and requires 12V to be applied to it, via a relay, in order for the valve to open and provide cooling to the passenger compartment. a. The evaporator shut off valve can be diagnosed easily by removing the relay and jumping the load contacts of the relay to see if power makes it to the valve. Power at the valve opens it and the evaporator gets cold with normal AC operation. b. The relay winding circuit can be tested for power and ground from the AC CU. Refer to the diagrams on the following pages. ©2017 Porsche Cars North America, Inc. AfterSales February 20, 2017 Page 1 of 4 8 CAY, PNM 8700 1701 Advanced Technical Information AC Control Unit Actuates the Evaporator shut off valve via a relay. The valve is closed without 12V from the relay. High Pressure Sensor Evaporator Shut Off Valve Relay High Pressure service port Evaporator High Pressure Shut off service port Valve Compressor Chiller T X V T X V Evaporator Internal Heat Exchanger AC Control Unit Low Pressure Directly applies power and ground for the chiller shut off valve. Service Port Valve is open without 12V applied from AC CU. February 20, 2017 Page 2 of 4 AfterSales ©2017 Porsche Cars North America, Inc. CAY, PNM 1701 8700 Advanced Technical Information E4 AC Control Unit ©2017 Porsche Cars North America, Inc. 8 A6 AfterSales February 20, 2017 Page 3 of 4 8 CAY, PNM 8700 1701 Advanced Technical Information The Evaporator Shut Off Valve Relay is in the location shown below in position 6. Dealership Distribution Routing Service Manager ________ Shop Foreman ________ Service Technician ________ ________ ________ ________ Asst. Manager ________ Warranty Admin. ________ Service Technician ________ ________ ________ ________ 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. February 20, 2017 Page 4 of 4 AfterSales ©2017 Porsche Cars North America, Inc.