No. 2229.4
Service Bulletin Details
Public Details for: No. 2229.4
Instructions on advanced technical information for the conbox current draw discharges 12v battery - for the cayenne and 911.
9 Bulletin #: 2229.4 Advanced Technical Information Part ID: 9063 9YA/9YB and 992 ConBox Current Draw Discharges 12 V Battery Vehicles Affected Models Model Year Model Type VIN Range Vehicle-Specific Equipment Cayenne 2019 - 2021 9YA/ 9YB n/a n/a 911 2020 - 2021 992 n/a n/a Revision History Revision Release Date Changes 0 September 28, 2022 Original document 1 October 20, 2022 Update of Service Information 2 October 28, 2022 Update of Service Information 3 November 3, 2022 Update of Service Information 4 November 7, 2022 Update of Technical Background & Service Information Condition The customer reports that the battery has insufficient voltage to start the vehicle. The workshop confirms this condition and notes an unexpectedly high current draw from the ConBox. Sometimes, the workshop also notes an unexpected active alarm on the vehicle. Technical Background The ConBox makes a higher than normal quiescent current draw. This may be related to an active alarm or another condition. Likely, the active alarm is consequential to the battery drain and did not cause the battery drain. There are two noteworthy ConBox ECUs related to this issue: ConBox Low and ConBox High. Both the 9YA/9YB and 992 have ConBox Low installed in production until June 2021. For vehicles with ConBox High installed, the following service information is not applicable. To determine which ConBox is in the subject vehicle, note the following information: • If ConBox High is installed in the vehicle, the VAL will contain the label: “Connect (High).” • If ConBox Low is installed in the vehicle, the VAL will contain the label “Connect” or “Connect (incl. PVTS).” AfterSales Nov 7, 2022 Page 1 of 3 Bulletin #: 2229.4 Advanced Technical Information Part ID: 9063 9 ConBox High is only installed on models that have MIB3 (also known as PCM6). MIB3 appears on newer models, including MY22 9YA/9YB and 992. MIB3 has more connected functionality than ConBox Low can provide, therefore ConBox Low and ConBox High are not interchangeable. Service Information There are no current software updates or solutions for ConBox High in 992 and 9YA/9YB. The current software version for 992 and 9YA/ 9YB ConBox High is 0360. For ConBox Low on both 9YA/9YB and 992, note the following information. 1. Be sure to take a before-repair VAL. 2. Please address the 12V system by either charging, or replacing the 12V battery, as necessary. 3. Charge the 3.5V ConBox backup battery in the vehicle. The vehicle will only charge this backup battery while the ignition switch is on (Terminal-15). If the battery will not charge acceptably, replace it. 4. If an active alarm is present in the ConBox (see figure 1 for an example for the VAL), please reset the alarm using one of the following methods: a. (Useful whether or not the customer has an active Connect subscription.) File a Connect PRMS ticket to cancel the alarm status. Within 48 hours, Porsche suppliers will reset the alarm status. Note: the car has to have good reception. Be sure the vehicle is parked outside. b. (Only useable if the customer has an active Connect subscription.) Make sure vehicle remains outside through this process. Trigger the alarm and let it sound for about a minute. The customer will then receive a call from the Vodafone Secure Operating Center and have to answer pre-determined security questions. Since this method requires customer inter action, help prepare the customer for Voda fone’s call. Figure 1 AfterSales Nov 7, 2022 Page 2 of 3 Bulletin #: 2229.4 Advanced Technical Information Part ID: 9063 9 5. After the alarm has been reset, perform a quiescent current draw test and note the results. (Hint: This issue causes a current draw of about 400 mA. A safe range of current draw is 30-70 mA.) 6. See the table below and update the software accordingly, to the highest level possible. 7. Check whether the ConBox is still drawing unexpected quiescent current from the battery. If the current draw is still present, please file a Technical Support PRMS ticket. 8. Be sure to take an after-repair VAL. Action On 9YA/9YB models... On 992 models... SW 0314 update to SW 0412 For MY19-MY20 (with software level 0314), use programming code Z4V7R For MY20-MY21 (with software level 0314), see TI (177/20). Programming code = A4V7H SW 0412 update to SW 0420 For MY21 (with software level 412), see TI (203/21). For MY21 (with software level 0412), see TI (203/21). Programming code: E3D7K Programming code: A3D7K See also TIs (177/20) and (203/21) Search Items ConBox, dead battery, starter battery, Li-ion, Connect, VTS 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. ©2022 Porsche Cars North America, Inc. AfterSales Nov 7, 2022 Page 3 of 3