NHTSA ID Number: 10176027
Manufacturer Communication Number: Subaru
Tech Tips
Summary
Subaru Service and Technical Support Line Newsletter. (QMR of the Month)
Articles Contained in this Issue
CODE ARTICLE PAGE
(00) STIS New Releases 9
(01) QMR of the Month 1-2
Tech Tips Greatest Tips (01) Lost Keys? Contact the Subaru Techline 2-3
(07) Parasitic Draw (Dark Current) Testing and Telematics DCM 3-4
(08) Combination Meter Settings: Kilometers to Miles 5
(15) Incorrect Operation of Audio Unit After Rockford Fosgate Upgrade Installation 5-8
(15) A/C and Heat Conditions: Use of Recirculation / Recirc Button 8
1 Affected Product
Vehicle
| MAKE | MODEL | YEAR |
|---|---|---|
| SUBARU | OUTBACK | 2020 |
1 Associated Document
Manufacturer Communications
TIPS0520
MC-10176027-0001.pdf 1650.463KB
- [Easy to Use—Work Out of the Box] + [FOXWELL 2026 New Version] FOXWELL NT604 Elite scan tool is the 2026 new version from FOXWELL, designed for car owners who want to figure out the cause of issues before fixing car problems by scanning common systems like ABS, SRS, engine, and transmission. The NT604 Elite obd2 scanner diagnostic tool comes with the latest software—no need to waste time downloading software first. Plug the scanner into the OBDII port with OBDII cable to start the diagnosis.
- [Affordable] + [Reliable Car Health Monitor] Will you be confused what happens when the warning light of ABS/SRS/transmission/check engine flashes? Instead of taking your cars to dealership, this FOXWELL scanner will help you do a thorough scanning and detection for your cars and pinpoint the root cause. Note：The device is a diagnostic tool, not a repair tool. To turn off a warning light, you must first physically repair the issue causing it. Only then can the scanner be used to clear the corresponding fault code.
- [5 in 1 Car Diagnostic Scanner] Compared with obd scanners (50-100), NT604 Elite code scanner not only includes their OBDII diagnosis but also serves as ABS/SRS scanner, transmission and check engine code reader. When it’s an odb2 scanner, you can use it to check if your car is ready for annual test through I/M readiness menu. In addition, live data stream, built-in DTC library, data play back and print, all these features are a big plus for it. Note: doesn't support maintenance functions like reset or relearn. For the SRS system, NT604 Elite can read and clear common fault codes not caused by a crash, but crash/collision data cannot be cleared.
- [Fantastic AUTOVIN] + [No extra software fee] Through the AUTOVIN menu, this NT604 Elite car scanner allows you to get your V-IN and vehicle info rapidly, no need to take time to find your V-IN and input one by one. What's more, the NT604 Elite ABS SRS scanner supports 60+ car brands from worldwide (America/Asia/Europe). You don’t need to pay extra software fee. AUTOVIN may not work on some older vehicles or certain vehicle brands. If AUTOVIN fails, please input the vin code manually or go to the Diagnostic Menu to select your vehicle model.
- [Solid protective case KO plastic carrying bag] + [Lifetime update] Almost all same price-level car scanner diagnostic tool only offers plastic bag to hold the scanner.However, NT604 Elite automotive scanner is equipped with solid protective case, preventing your obd2 scanner from damage. Then you don’t need to pay extra money to buy a solid toolbox.
- 【Reset ABS/SRS/Transmission/Engine Lights】 More than an check engine code reader, OBDMATE OM901 obd2 scanner performs comprehensive diagnostics for the 4 most-used systems (ABS/SRS/Engine/Transmission). It quickly clears fault codes, turns off warning lights, read data stream and auto VIN.
- 【3.5" Handheld Scanner with 4 System Diagnose】 3.5" Super large TFT screen equipped displays an intuitive menu and clear readings of various sensors from ABS, SRS, ECM and TCM systems. It arrived with a silicone protective case and hard-shell carrying case, ensuring long-lived durability and drop resistance. The car diagnostic tool is plug-to-play designed, plug it and get diagnosis started without any batteries or updates required.
- 【One-Click I/M Readines&Full OBD2 Functions】 Press F1 to get an intuitive corloured form about whether various emissions-related systems on the vehicle are operating properly. Help you get smog-check ready quickly. OM901 car scanner supports all essential OBD2 functions you need: read & clear codes, view freeze frame, read I/M readiness, retrieve VIN, live data stream (with graphing display), O2 sensor test, onboard monitoring mode, and EVAP leak test.
- 【Battery Voltage Check&DLC Pin Test】 It allows you to monitor battery health by monitoring current battery voltage. Plus, this obd2 diagnostic tool features DLC 16-PIN test to check current voltage of every pin.
- 【Automotive Scanner Diagnostic Kit】 The package comes with 1 car scanner, 1 USB-type c cable, 1 hard storage bag and 1 user manual(en). Free to update without any hidden fees. 5 languanges available in setting including English, French, Italian, German and Espanish. Valuable and Portable, making it a great tool kit for car owners, DIY enthusiasts, and professional mechanics.
- [Diagnose Like a Pro] BlueDriver Pro Next-Gen is a professional OBD2 scanner and diagnostic tool that helps you scan, understand, and clear vehicle trouble codes with confidence. Turn your phone into a powerful car diagnostic scanner—no guesswork, no unnecessary repairs.
- [Read and Clear More Codes Than Ever] Read and clear more codes than basic car code readers. Access enhanced diagnostics for Check Engine, ABS, SRS, Airbag, TPMS, Transmission, and more on supported vehicles, including expanded coverage on newer model years.
- [Verified Fixes and Real-Time Data] Get unlimited, technician-verified repair reports matched to your VIN, with definitions, causes, and confirmed fixes. Monitor live vehicle data as you drive, view freeze frames, check smog readiness, and analyze Mode 6 test results.
- [Expanded Make & Model Coverage] Optimized for today’s vehicles with strong support for GM, Ford, Stellantis (RAM, Jeep, Chrysler), Toyota, Honda, Nissan, Mazda, Subaru, Hyundai, Mercedes-Benz, BMW, and VW. Enhanced communication on select 2024+ Nissan and Mazda models (see compatibility chart).
- [Gas Vehicles 1996+ & Select Light-Duty Trucks] Works with all gas-powered vehicles made in 1996 or newer, plus select light-duty trucks and diesels, including F-250, RAM 2500, Silverado, and Sierra. Built for daily drivers, family vehicles, and real-world truck use.
- PAID FOR ITSELF ON FIRST USE - SAVE ON EVERY DIAGNOSIS: Avoid expensive shop fees and take control of vehicle repairs at home. The NT614 Elite delivers professional-level diagnostics for Engine, ABS, SRS Airbag, and Transmission systems, helping you quickly identify the real cause of warning lights and avoid unnecessary repairs. With 5 essential service resets including Oil Reset, EPB, ABS Bleeding, SAS Calibration, and Throttle Relearn, you can complete everyday maintenance and repairs without paying dealership visit. Features WiFi updates, no registration required, and plug-and-play setup with no extra power cord
- 5 ESSENTIAL RESETS FOR REAL DIY MAINTENANCE: More than just a diagnostic tool, the NT614 Elite gives you the service functions DIYers actually need to avoid expensive shop visits. Perform Oil Reset, EPB brake service, ABS bleeding, steering angle calibration, and throttle relearn to fix common maintenance issues at home with confidence. Reset warning lights, replace brake pads, restore throttle performance, and complete essential maintenance without paying dealership labor costs. Note: Function availability varies by vehicle make, model, year, engine type, and system configuration. Please confirm compatibility before purchase.
- SAME 4-SYSTEM DIAGNOSTICS AS NT604: Built on the trusted NT604, the NT614 Elite delivers full diagnostics for Engine, ABS, SRS Airbag, and Transmission systems-helping you identify the root cause behind warning lights instead of guessing. Read and clear codes, view live data graphs, monitor engine temperature, wheel speed sensors, transmission temperature, and more for accurate troubleshooting at home
- LIVE DATA GRAPHING - FIND PROBLEMS BEFORE THEY GET EXPENSIVE: See what basic scanners miss with real-time data displayed in easy-to-read graphs. Monitor fuel trims, oxygen sensors, engine load, RPM, battery voltage, and transmission temperature to detect intermittent or hidden problems before they become costly repairs. Diagnose faster and make smarter repair decisions with visual data insights
- AUTO VIN + LIFETIME WI-FI UPDATES + WIDE COVERAGE: AutoVIN instantly identifies your vehicle for faster setup and fewer errors. Generate professional vehicle health reports for maintenance tracking, used car inspections, or sharing with mechanics. Stay updated with lifetime free Wi-Fi updates-no subscriptions or hidden fees. Supports 90+ brands and 10,000+ models including Ford, Toyota, BMW, Mercedes-Benz, Honda, Nissan, Volkswagen, Hyundai, Subaru, and more for long-term reliable use
- [All System Diagnostics, Professional-Level Scanner] - BLCKTEC 460T is the ultimate OBD2 diagnostic tool for home mechanics and professionals. It supports all 10 OBD2 modes, reads and clears Engine/Transmission/ABS/SRS codes, performs All-System Diagnostics, offers workshop reset tools, and provides real-time live data. It helps you pinpoint issues, assess your car's condition, and prepare for SMOG checks with ease. NOTE: Function availability depends on your vehicle. Before you buy, be sure to use the Compatibility Checker on BLCKTEC website or contact our customer support to verify that the features you need are supported for your vehicle’s specific year, make, and model.
- [12+ Most Popular Reset Functions] - BLCKTEC 460T OBD2 scanner offers 12+ dealer-level service functions, including Oil Maintenance Reset, ABS Bleeding, EPB Reset, SAS(Steering Angle Sensor) Recalibration, DPF(Diesel Particulate Filter) Reset, Throttle Body Relearn, Battery Reset/Initialization, TPMS Relearn, Transmission Reset, Fluid Change Reset, Maintenance Reset and more, enabling you to perform workshop services like a pro. NOTE: Function availability depends on your vehicle. Be sure to use the Compatibility Checker on BLCKTEC website to verify that the features you need are supported for your vehicle.
- [Real-Time OBD2 and OEM Live Data, Freeze Frame Data] - BLCKTEC 460T helps diagnose vehicle issues when warning lights like Check Engine Light or ABS/SRS Light appear. It offers detailed DTC info, ECU Freeze Frame Data, and real-time OBD2 and advanced OEM live data, including Engine, Transmission, ABS, SRS, and more, making it easy to diagnose and resolve vehicle problems. You can view, graph, record, replay, and overlay up to four live data streams in a single graph for better analysis.
- [AutoVIN, AutoReLink, AutoScan, 3X Faster] - Equipped with AutoVIN technology, 460T automatically retrieves the VIN to save you time. Its AutoScan and AutoReLink features scan all of the vehicle's ECUs and detect any fault codes immediately after you plug the scanner into the vehicle's OBD2 port - no button presses required. Additionally, it regathers DTC and I/M readiness information every 30 seconds, simplifying monitor tests. 460T's advanced technology makes it 3X faster than other products.
- [Get RepairSolutions2, the #1 Auto Repair App for Free] - When paired with RepairSolutions2(RS2) App, 460T becomes even more powerful. RS2's Verified Fix Database built by master technicians, provides the parts needed for the repair. Additionally, RS2 gives you access to OEM warranty info, maintenance schedules, TSB, and dealership recall info, making car care easier than ever. RS2 is free with no subscription fees and it stores your car scan reports in the cloud, allowing you to access, share, or print them anytime and anywhere.
Last update on 2026-06-11 / Affiliate links / Images from Amazon Product Advertising API
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Subaru Service and Technical Support Line Newsletter 01 QMR of the Month We are pleased to announce this month’s QMR of the Month Winner: Christopher Vanaman from Rafferty Subaru in Newtown Square, PA Our March winner’s QMR outlined the diagnosis and repair of a 2020MY Outback which presented with the power windows and automatic seats inoperative. After confirming the conditions as reported, the SSM was connected and a DTC U1822 was found stored in memory. A check of the power supply circuits was next where SBF 2 was found to be blown in the under hood Main fuse box (M/B). Replacing the fuse restored operation of all systems but, Christopher set out to determine the root cause of the blown SBF 2. He began by inspecting the current (amperage) draw on each of the circuits powered by SBF 2. After ruling out the power window system, he continued monitoring the draw while operating the numerous functions of the power driver’s seat. While observing the meter and lowering the seat, the current draw was fluctuating to near 30 A then spiked to blow SBF2 again. Christopher removed the driver’s seat assembly and began a thorough inspection of the lift motor wiring. His inspection revealed a short on the purple wire where the seat switch harness passes through an opening in the seat frame. The insulation had rubbed through in one spot. The exposed, bare wire was shorting directly to the frame but only when operating the lift motor up or down. Christopher proceeded to repair the affected wiring and add additional cable ties as needed to better secure the harness and prevent any recurrence. He then replaced SBF 2 a second time. After reinstalling the driver’s seat assembly and clearing the memory, normal operation of all affected systems confirmed a sound repair. Christopher’s highly detailed report included all his testing results, connector and pin locations and a collection of exceptionally clear photos to further document the damaged wiring before and after repair. In appreciation for going the extra mile and sharing his experience with us, Christopher will be receiving the following from his Field Service Engineer. $500.00 Snap-On gift card ©2020 Subaru of America, Inc. All rights reserved. SUBARU TECHLINE HOLIDAYS & HOURS OF OPERATION Memorial Day: (Closed) Monday, May 25, 2020 Independence Day: (Closed) Friday, July 3, 2020 Labor Day: (Closed) Monday, September 7, 2020 Mon. – Thurs. 8:30AM – 7:30PM EST Friday 10:30AM – 5:00PM EST Saturday 9:00AM – 3:00PM EST Continued on the next page home Articles Contained in this Issue The Subaru TechTIPS newsletter is intended for use by professional Technicians ONLY. Articles are written to inform those Technicians of conditions that may occur in some vehicles, or to provide information that could assist in the proper servicing of the vehicle. Properly trained Technicians have the equipment, tools, safety instructions, and know-how to do the job correctly and safely. If a condition is described, DO NOT assume that your vehicle has or will have that condition. Impreza, Legacy, Justy, Loyale, Outback, Forester, Subaru SVX, WRX, WRX STI, Baja, Tribeca, BRZ, XV Crosstrek, Ascent, Crosstrek Hybrid and “Quality Driven” are Registered Trademarks. ISO 14001 is the international standard for excellence in Environmental Management Systems. Please recycle or dispose of automotive products in a manner that is friendly to our environment and in accordance with all local, state and federal laws and regulations. CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS. SUBARU OF AMERICA, INC. IS ISO 14001 COMPLIANT Click on a title below to jump to the article. Click the date located in the footer to return to page 1. CODE ARTICLE……………………………………………………….PAGE (00) STIS New Releases………………………………. 9 (01) QMR of the Month……………………………..1-2 Tech Tips Greatest Tips (01) Lost Keys? Contact the Subaru Techline……………………………………………2-3 (07) Parasitic Draw (Dark Current) Testing and Telematics DCM………………………….3-4 (08) Combination Meter Settings: Kilometers to Miles……………………………… 5 (15) Incorrect Operation of Audio Unit After Rockford Fosgate Upgrade Installation……………………………………….5-8 (15) A/C and Heat Conditions: Use of Recirculation / Recirc Button……………….. 8 May 2020 May 2020 TechTIPS Page 1 of 10 01 QMR of the Month (continued) The other Regional winners selected from QMRs submitted during March 2020 were: • Scott Clark from Carr Subaru in Beaverton, OR • Erik Rodriguez from Grand Subaru in Bensenville, IL • Joshua Haskell from Charlie’s Subaru in Augusta, ME • David Rizzo from West Herr Subaru in Orchard Park, NY Any Subaru Technician can participate in the QMR of the Month program. See the February 2013 and January 2016 issues of Tech TIPS for full details. You just might see your name and photo in a future issue of Tech TIPS! This series features TechTIPS articles frequently referred to by Techline. This month’s feature is from September 2017. 01 Lost Keys? Contact the Subaru Techline If you receive a vehicle from the customer where all their originally registered keys have been lost, contact the Subaru Techline for the necessary steps to program new keys. Depending on the immobilizer type, you will be unable to just program one new key without an original key. Both immobilizer Type-B and Type-D require an original key to make any changes to the immobilizer system. Without an original key, a new one cannot be added. Unsure of which type immobilizer you have? Refer to the Quick Reference Chart found in the October 2016 TechTIPS newsletter. Once you have confirmed the vehicle is the Type-B or Type-D immobilizer system, the following: • Verify the vehicle is onsite. • Open a Repair Order with all necessary information. ᵒ VIN, RO number, RO date, Mileage if it can be obtained, etc. • Verify key type (push-button, turn-key) • Contact the Subaru Techline. SOA will no longer clear immobilizer modules for salvage/rebuilt title vehicles. Please refer to the Service Manual/Registration Manual for Immobilizer for repair of these vehicles. When calling the Subaru Techline, please ensure all necessary information is available at the time of the call. Once connected with the Techline, we will be able to provide the necessary procedure to program new keys to the vehicle. Continued on the next page May 2020 TechTIPS Page 2 of 10 01 Lost Keys? Contact the Subaru Techline (Continued) See Latest Immobilizer chart below: US Model 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Legacy / Key Start A B G Outback Push Button D H Tribeca Key Start A Impreza Key Start A B Push Button D Crosstrek Key Start B Push Button D Crosstrek Hybrid Push Button D F WRX/Sti Key Start A B Push Button D Forester Key Start A B Push Button D BRZ Key Start X Push Button Y Ascent Key Start B Push Button D 07 Parasitic Draw (Dark Current) Testing and Telematics DCM Techline has recently received calls with questions about Parasitic Draw (dark current) conditions which seem to be resolved by removing the Data Communications Module (DCM) also known as the Telematics control module fuses. There are a few key conditions to keep in mind when testing for Parasitic Draw on STARLINK Telematics -equipped vehicles: 1. The Audio Unit (A/U) will keep a DCM awake any time the A/U screen is on or sound is playing, even when the ignition is switched off. 2. A DCM connects to the STARLINK server at the time key is turned off. When there is a network connection issue, the DCM will continue to attempt to connect to the server, and/or if the MIL lamp is illuminated just before IGN-OFF and network connection is poor. The DCM won’t sleep for up to 15 minutes after IGN-OFF. 3. The DCM will wake up if a customer uses any remote service function through Starlink APP. Continued on the next page May 2020 TechTIPS Page 3 of 10 07 Parasitic Draw (Dark Current) Testing and Telematics DCM (Continued) Condition #1: It is obvious the DCM is not the root cause of parasitic draw as the A/U will visibly be on and/or audio will be playing. It requires at least 3 minutes following ignition off for the A/U to power down. Condition #2: This is the most likely scenario for a misdiagnosis of DCM as the root cause of the draw. Checking signal strength for the DCM using SSM4 in your testing area is important and if signal strength is weak, testing should be completed after at least 15 minutes or more of wait time following ignition OFF. Condition #3: It would be rare for a customer to be attempting remote services functions while the vehicle is at the retailer for service for parasitic draw testing. A vehicles DCM can power up or stay awake for various reasons including but not limited to: software updates, Service Appointment Scheduler (SAS) usage and Ignition Off Data transmissions. When activated, the Stolen Vehicle Recovery function will keep the DCM awake for a couple of days (this is a very rare case.) Contact the SOA Techline to ensure Stolen Vehicle Recovery has not been activated if the DCM is not going to sleep after 15 minutes. The Telematics system LED can stay on for up to 5 minutes after Key Off and it is essential to wait at least 15 minutes after ignition off (key removed or all access keys at least 2+ meters away from the car) before proceeding to attempt diagnosis of Parasitic Draw and to determine if the DCM is the root cause of the draw. When diagnosing parasitic draw, it is crucial to follow the latest STIS Service Manual information as additional wait time may be required. Based on the information above, the best practice to rule out any possibility of an unexpected power draw from the DCM is to wait a full 15 minutes for the DCM to go to sleep. Use a watch or smartphone to keep track of time. After 15 minutes have elapsed, measure the dark current draw. If the draw exceeds specifications, perform the following steps to ensure the DCM power supply is eliminated: 1. Pull the M/B fuse (under the hood) feeding the DCM. 2. If the draw is still present, next pull the fuse feeding the ignition supply to the DCM from the front fuse box. 3. If the draw is still present, pull the fuse feeding the accessory power circuit to the DCM from the front fuse box. 4. If the DVOM is still indicating a parasitic load higher than 70mA, the DCM should not be considered the root source of the draw until further isolation methods have been performed to identify additional parasitic loads. NOTE: While the DCM may only take 15 minutes to go to sleep, there may be other control modules in the vehicle which take longer, up to 55 minutes. See the related Service Manual for these details. May 2020 TechTIPS Page 4 of 10 08 Combination Meter Settings: Kilometers to Miles When presented with a customer concern of the odometer reading in Kilometers instead of Miles, it is always a good idea to consult the Owner’s Manual. If the manual is not found in the vehicle, it can be accessed through STIS. Below is an example of the information found in the Owner’s Manual to correct this concern. 15 Incorrect Operation of Audio Unit After Rockford Fosgate Upgrade Installation APPLICABILITY: All Vehicles with Denso CP1 Multimedia Navigation (AVN) & Display Audio (DA) systems SUBJECT: 2020 Outback/Legacy Rockford Fosgate Audio Upgrade Kit There have been reports received concerning incorrect operation of the 2020 Outback/Legacy audio system after the installation of the Rockford Fosgate Audio Upgrade. Always refer to the Retailer Installation Instructions found in Subaru Tech Info System (STIS) and closely follow the instructions without skipping steps. Please see the items below to further assist in preventing concerns following the installation of the upgrade kit. Continued on the next page May 2020 TechTIPS Page 5 of 10 Continued on the next page 15 Incorrect Operation of Audio Unit After Rockford Fosgate Upgrade Installation (Continued) 1. Remember to inspect the Audio Upgrade Kit parts to ensure no missing parts or part defects as well as confirm the correct part numbers. NOTE 1: The amplifier part number should be H630SAN002. It was designed specifically for 2020 Outback/Legacy. NOTE 2: The Base model requires Tweeter Kit H630SAN100 to be added prior to installation of the Rockford Fosgate Audio Upgrade Kit. Tweeter Kit H630SAN100 is comprised of OEM parts and is not supplied by Rockford Fosgate. The Tweeter Kit is designed to improve sound with a full 6-speaker system (2 dash tweeters, 2 front door speakers, 2 rear door speakers). 2. Use extreme caution when performing removal, re-installation and all checks of the infotainment unit. The volume and tune knobs can be easily damaged, if excessive force is used to press the knobs in during checks or during handling. 3. Remember to always disconnect the negative cable from the battery sensor prior to starting installation. Never disconnect it directly from the battery terminal. 4. Verify the audio harness jumper wires have been properly set to select the correct audio profile for the target vehicle’s trim level. Configure sound characteristic (Tuning) programming to specific models TUNING PROFILE Connect Mail (Black Wire) To: 1. Using the chart on this page, connect the black wire to the correct colored wire based on the model being upgraded. NOTE: For Outback Premium and Onyx models, no wires will be connected. Outback Premium / Onyx No Connection Outback Base WHITE (short) Legacy Base BLUE (medium) Legacy Premium / Sport GREEN (long) Harness jumper setting with tape flags for Outback Premium/Onyx Harness jumper setting for Legacy Premium/Sport with tape flag removed and connection made NOTE: Incorrect harness setting, selecting the wrong audio profile for the vehicle trim, will allow some audio system operation, but the sound quality would be below the specified performance. May 2020 TechTIPS Page 6 of 10 Continued on the next page 15 Incorrect Operation of Audio Unit After Rockford Fosgate Upgrade Installation (Continued) 2. If the WHITE, BLUE, or GREEN jumper wires were used, the colored tape flag removed from the jumper should be placed on the amplifier as a visual indicator of the audio profile selected to match the target vehicle’s trim level. 3. Remember to complete verification testing to confirm the system operates as intended. May 2020 TechTIPS Page 7 of 10 15 Incorrect Operation Of Audio Unit After Rockford Fosgate Upgrade Installation (Continued) NOTE: Confirm the negative battery cable has been reconnected following upgrade kit installation instructions, being sure not to exceed the torque of 5.5 ft lb/ 66 in lb and CP1 system has completed reboot prior to starting any verification testing. 4. If verification testing results in an unexpected finding and installation has been confirmed as correct, please submit a QMR including specific details about the condition found and review of the installation including pictures of connectors, harnesses, CP1 system software version, amplifier part number, etc. If possible, provide a video of the concern as duplicated and any steps required to duplicate it. 15 A/C and Heat Conditions: Use of Recirculation / Recirc Button Regardless if you are believer in Global Warming or not, in recent years we all are clearly experiencing some extreme variations in both temperature and humidity in ways not seen in the recent past. As a result, customers may experience higher temperatures and humidity conditions during any season than just those experienced in the past. Unusual temperature and humidity conditions may necessitate changes for how customers operate their HVAC system in order to achieve peak and desired performance. One of the most overlooked but key performance points is the preferred use of the recirculation or “recirc” button to control the flow of outside air into the cabin. When applied in a manner inconsistent with ambient conditions, this can lead to a few customer complaints. Two common examples are listed below. • Buildup of condensation or ice on the inside of windows can result from trapped moisture while having recirculate ON (recirculating cabin air) in winter. Switching recirculate to OFF will allow outside, lower humidity air into the cabin and allow natural drying to occur. Use of the front defrost / defogger is the most effective way to accomplish this drying action and will automatically change the recirculation setting to OFF (allowing fresh air in) for most vehicles. (Note: some older, manual HVAC systems may still require the recirc button be changed to OFF- Check the related vehicle’s Owner’s Manual). • Reduced air conditioner performance may occur when recirc is set to OFF (allowing fresh air in). Having the recirc OFF (fresh air in) combined with high ambient temperature conditions (more than 100° F) reduced air flow through the condenser (such as during severe stop/go traffic conditions without adequate space between vehicles, vehicle parked with front close to a wall or other restricted air flow conditions), can increase refrigerant temperatures and system pressures and lead to a reduction of performance. In severe cases, the system may even temporarily shut down until internal refrigerant pressures return to within the normal operating range. This can even occur fully charged systems operating at capacity. In such conditions, it is best to have recirculate in the ON position (recirculating cabin air) to achieve the desired cooling effect. The above examples represent only two possible scenarios and combinations of many conditions customers may experience. If the HVAC system appears to be operating correctly, it may prove helpful to inquire about the ambient temperature and humidity conditions during which the customer was experiencing the most recent concern. It may only take something as simple as a small change to the customer’s recirculation settings to ensure their desired comfort level is achieved under similar conditions in the future. May 2020 TechTIPS Page 8 of 10 00 STIS New Releases ITEM CODE ITEM TYPE TITLE CREATED DATE 15-261-20R Technical Service Bulletin Reprogramming File Availabilit… 21-May-20 Send-SSM4 Other/Miscellaneous Sending a SSM4 Download 21-May-20 12-292-20 Technical Service Bulletin Front Seat Belt Installation P… 19-May-20 12-291-20 Technical Service Bulletin Staining on Finish of Rear Gat… 19-May-20 12-290-20 Technical Service Bulletin Front Seat Backrest Cover Bols… 18-May-20 07-176-20 Technical Service Bulletin DTCs B118B, B11E5, B11E6 in Dr… 18-May-20 06-75-20 Technical Service Bulletin WUR-03R Brake Hose Ordering In… 15-May-20 07-155-19R Technical Service Bulletin Power Rear Gate (PRG) Control … 15-May-20 WUT-05R Subaru Product/Campaign Bulletin Forester Rear Coil Springs 13-May-20 WUA-86R Subaru Product/Campaign Bulletin Harman Kardon Head Unit Reprog… 12-May-20 WUQ-02R Subaru Product/Campaign Bulletin Ignition Coil Short Circuit 11-May-20 07-162-19R Technical Service Bulletin Automatic Door Lock / Unlock F… 11-May-20 12-203-16R Technical Service Bulletin Squeaking Sound from Front Sea… 8-May-20 01-182-20 Technical Service Bulletin Recall/Service Campaign Exempt… 7-May-20 WRD-20R Subaru Product/Campaign Bulletin Fuel Pump Impeller Failure 7-May-20 01-183-20 Technical Service Bulletin Vehicle Repair Program for Cus… 6-May-20 TSG 900MHz PS Troubleshooting Guide Remote Engine Start Systems Tr… 6-May-20 TSG 900MHz KS Troubleshooting Guide Remote Engine Start Systems Tr… 6-May-20 TSG SFL PS Troubleshooting Guide Remote Engine Start Systems Tr… 6-May-20 WTY-84R Subaru Product/Campaign Bulletin 2.0L Engine Valve Spring Fract… 6-May-20 11-200-20R Technical Service Bulletin Reprogramming File Availabilit… 6-May-20 14-25-20 Technical Service Bulletin Valve Spring Replacement Tools… 5-May-20 12-288-20 Technical Service Bulletin Power Front Seat Cushion Frame… 5-May-20 15-208-17R Technical Service Bulletin Availability of “Gracenote® Me… 4-May-20 E101EAJ501 Accessory Installation Guide Rear Bumper Protector Mat 4-May-20 05-74-20 Technical Service Bulletin Knocking -Type Sound from Engi… 30-Apr-20 01-181-20 Technical Service Bulletin Vehicle Cleaning- COVID-19 Bes… 30-Apr-20 15-249-19R Technical Service Bulletin 2020 Audio/Navigation & Power … 30-Apr-20 15-195-16R Technical Service Bulletin Servicing and Claim Submission… 30-Apr-20 F541SFL000 Accessory Installation Guide 2021 Crosstrek Moonroof Air De… 28-Apr-20 WUJ-95R Subaru Product/Campaign Bulletin Exhaust Pipe Front (EPF) Bello… 24-Apr-20 15-263-20 Technical Service Bulletin Harman Gen. 3.0 Audio and Navi… 23-Apr-20 L101SAN000 Accessory Installation Guide 2020 Outback Trailer Hitch (Fr… 21-Apr-20 All revised publications are highlighted in yellow. May 2020 TechTIPS Page 9 of 10 Continued on the next page *** Now you can e-mail your TechTIPS input and suggestions to: tech@subaru.com *** SUBARU TECHLINE Monday – Thursday 8:30 am to 7:30 pm Hours of Operation Friday 10:30 am to 5 pm and Saturday 9 am to 3 pm This is your chance to offer suggestions for use in future issues of TechTIPS! Make sure that if you e-mail us, you place in the subject line of your e-mail “For TechTIPS Newsletter”. Thank you! Model: Year: VIN: Description of situation encountered: Your suggestion for repair procedure, product improvements, etc.: Please attach separate sheets, if necessary. You may also want to include Service Manual diagrams or references, or your own drawings to assist in describing your suggestion. All information submitted becomes the property of Subaru of America, Inc. Permission is granted to Subaru of America, Inc. to print your name and suggestions in TechTIPS and other Subaru of America, Inc. publications. Mail items to: PO Box 9103; Camden, NJ 08101-9877. Your Name: Signature: Dealer’s Name: City: Date: Dealer Code: May 2020 TechTIPS Page 10 of 10
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