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NHTSA ID Number: 10189668
Manufacturer Communication Number: Subaru Tech Tips
Summary
QMR of the Month
Articles Contained in this Issue
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CODE ARTICLE………………………………………PAGE
(00) STIS New Releases…………………………..10-11
(01) QMR of the Month………………………………..1-2
(01) QMR of the Month Award
Presentations………………………………………… 2
Tech Tips Greatest Tips
(01) Combination Meter and BIU shipments
to SOA………………………………………………….. 3
(06) C1921 – Electronic Parking Brake
Inoperative………………………………………….3-4
(15) Homelink Mirror, No Operation
with Key Off………………………………………….. 4
(15) Failed RES:
Reference Error Code SER-4357………………. 5
(15) CP1 software version verification……………. 6
1 Affected Product
Vehicle
1 Associated Document
Manufacturer Communications
TIPS0221 2021 February TechTIPS Newsletter
- [Pro OBD2 Scanner] - BlueDriver is the easiest way to scan and understand your vehicle like a professional mechanic. Read and clear your car’s trouble codes and check engine light.
- [Read & Clear All The Codes] - BlueDriver's enhanced vehicle diagnostics gives you access to information normally available only to mechanics on their OBD2 scan tools. Now you can read and clear ABS, Airbag, SRS, TPMS codes, and many more.
- [Get The Right Fix & View Live Data] - Much more than a car code reader, BlueDriver is a diagnostic tool. You’ll get unlimited repair reports with possible causes and fixes, plus real-time health monitoring while you drive with the live data feature.
- [Wireless & Bluetooth Enabled] - Say goodbye to wires. BlueDriver connects with Bluetooth via your phone/tablet to a sensor that plugs into your car's OBDII port. Get all of the capabilities of an expensive code reader & scan tool without any annoying wires.
- [User-Friendly App and Repair Videos] - BlueDriver gives you more ways to scan and fix your vehicle. Our iOS & Android app connects you to a large database of repair videos with step-by-step directions of repairs.
- [Easy to Use--Work out of box] + [FOXWELL 2025 New Version] FOXWELL NT604 Elite scan tool is the 2025 new version from FOXWELL, which is designed for those car owners who want to figure out the cause issue before fixing the car problem via scanning the most common systems like abs srs engine and transmission.The NT604 Elite diagnostic tool comes with latest software, which can be used out of box. No need to waste time to download the software first.
- [Affordable] + [Reliable Car Health Monitor] Will you be confused what happen 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. It will t-urn off the warning light car after the problem is fixed.👉TIPS: Airbag crash/collision data can NOT be cleared even you replace the new airbag.
- [5 in 1 Diagnostic Scanner] Compared with those auto scanners (50-100), NT604 Elite code scanner not only includes their OBDII diagnosis but also it can be an 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 function.
- [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 makes from worldwide (America/Asia/Europe). You don’t need to pay extra software fee.
- [Solid protective case KO plastic carrying bag] + [Lifetime update] Almost all same price-level obd scanner diagnostic tool only offers plastic bag to hold on 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.
- [Transform Your Car Care Experience] - With BLCKTEC, instantly become your own professional mechanic. Effortlessly read and clear your car’s trouble codes and check engine light, ensuring your vehicle stays in top condition.
- [Empower Yourself with Comprehensive Diagnostics] - Unlock the full potential of your vehicle with the BLCKTEC 430. Access detailed diagnostics previously exclusive to professional mechanics’ OBD2 scan tools, including ABS, Airbag, SRS, TPMS codes, and beyond, right at your fingertips.
- [Drive with Confidence] - The BLCKTEC 430 is more than just a car code reader; it's your personal vehicle health advisor. Receive tailored repair reports with potential causes and verified solutions for your specific make and model, guiding you to the right fix every time.
- [Seamless Connectivity, Ultimate Convenience] - Experience the freedom of wireless diagnostics with this portable car scanner. Easily connect via Bluetooth to our intuitive sensor and enjoy all the functionalities of high-end scan tools without the clutter of wires, directly from your smartphone or tablet. To connect the tool to the App, please DO NOT go to device's Bluetooth settings, instead, open RepairSolutions2 App and follow the instructions on the App to pair the BLCKTEC 430.
- [DIY Repairs Made Easy] - Navigate car maintenance with ease using our premium app. Access a vast library of easy-to-follow repair videos, guiding you through each step of the repair process, compatible with both iOS & Android devices.
- Pro-level ABS SRS OBD2 Scanner - Based on the NT301 FOXWELL Scanner, this car scanner takes OBD-II diagnostics to the next level by in-depth insights on reading ABS SRS Diagnostic Trouble Codes, display the Live Data: Wheel Speed Sensor, Airbag Issues, Wiring Faults, clear the ABS error codes after the car faults repaired, etc... NOTE: This code reader can only read SRS codes but CANNOT reset any Airbag crash codes. Please check the functions coverage BEFORE purchasing. NO Need to Register &Subscription.
- Full-Feature ABS Diagnostics - Real-time tracking of wheel speed sensor, brake force distribution, and brake pressure with dynamic graphs for easy analysis. Effortlessly read ABS trouble codes and access freeze frame data to identify and resolve system issues. This ABS scanner diagnostic tool also monitors ABS performance during emergency braking or on slippery surfaces, providing alerts for potential problems.
- Basic OBDII Scanner Functions - This obd2 scanner diagnostic tool also can Check Engine Fault Light, diagnose OBD-II modules instantly, display the Live Data with graph (engine RPM, coolant temperature, fuel trim, and sensor readings), locate bad sensors and indicate I/M readiness status before the annual inspection. Reducing the potential driving risk and keep a peak performance on the road.
- Top ABS Bleed Scan Tool - After replacing the ABS pump or adding brake fluid, air can enter the ABS module, causing the pedal to feel weak or slow to return. This OBD2 scanner with ABS auto bleed will restore your brake pedal’s firmness by efficiently removing air from the ABS module. For vehicle coverage, check the FOXWELL Diagnostic Coverage List under Support on the official site. NOTE: This feature is NOT compatible with vehicles that support manual bleed.
- User-Friendly & Budget-Friendly - Enjoy software updates without subscription for newer vehicle models(Any more issues about update, please let us know). This car code reader comes with a sturdy case for easy carrying. The code reader for cars will also save diagnostic data to avoid unnecessary diagnostic costs when you must to find the professional mechanic to fix the car faults instead of addressing them by yourself.
- [ABS Diagnosis] - Quickly identify and resolve ABS-related issues, including sensor faults (such as wheel speed sensors), wiring problems (faulty circuits or connectors within the ABS system), or ABS pump failures (malfunctions in the ECU controlling the ABS). Ensure proper system operation, restore optimal braking performance, and clear any warning lights.
- [SRS Diagnosis] - Quickly detect the airbag ECU itself, airbag sensor failure, airbag system plug disconnection or poor contact, seat belt sensor failure, or system error, etc, to ensure that the SRS (Supplemental Restraint system) is working properly. After repair, reset the system to clear the warning light and restore full safety performance. NOTE: It cannot reset Airbag crash or transmission codes.
- [Full OBD2 Function] - Read and clear trouble codes for all OBD2 systems, including show real-time data, freeze frame data, I/M Readiness, DTC lookup, test results for o-xygen sensor, On-board monitor test, request vehicle information, component test, modules present and e-vap test. Allowing you to quickly identify and troubleshoot vehicle issues.
- [AutoVIN Technology] - It simplifies diagnostics by automatically identifying the vehicle’s model and configuration, eliminating the need for manual input, and ensures accurate diagnostics by applying the correct data and algorithms, reducing errors caused by manual entry. Improves efficiency and streamlines the diagnostic process.
- [ABS Auto Bleeding] - Helps bleed your vehicle's Anti-lock Braking System (ABS), removing air from the brake lines to ensure optimal brake performance. It helps prevent brake issues such as spongy pedals, inconsistent braking, and reduced stopping power, and enhances vehicle safety by ensuring the ABS system is working properly, especially during critical driving situations. NOTE: It’s not compatible with vehicles that only support manual bleeding.
- [Brand-New ArtiDiag500] We've got everything you're looking for! Forget basic OBD2 scanners; TOPDON's ArtiDiag500 car scanner offers more. The all-new ArtiDiag500 not only includes full OBD2 functions and 4-system diagnostics but also provides DIYers with 6 maintenance services. The brand-new, cost effective AD500 is back in full swing!
- [4-System Diagnostics] DIY enthusiasts, take notice! Will these 4-system diagnostics be the treasure you've been seeking? The ArtiDiag500 code reader offers in-depth testing for the engine, transmission, ABS, and SRS systems, reading fault codes and data streams. It also visualizes real-time data in chart form, simplifying complex data for storage and future playback, aiding DIY users in problem detection.
- [6 Reset Functions] Hey, hang tight for a moment. With these 6 reset functions, the ArtiDiag500 has got you covered. It offers throttle adaptation along with reset capabilities for Oil, SAS, TPMS, BMS, and EPB. Seamlessly aligning the throttle, battery, tires, and brake pads with your vehicle, it also adjusts the steering angle and turns off the oil light. Looking to restore your car to its original condition? Look no further than the ArtiDiag500.
- [Multiple Functions] The Smart AutoVIN of this TOPDON OBD2 scanner keeps track of your manual selections for vehicle make, model, and year and directs you to the suitable diagnostics. Max 4 Live Data streams integrated for much easier data processing. Diagnostic feedback online with this diagnostic tool to help you get tough repair operations well-completed. Real-time car battery voltage monitoring identifies probable vehicle defects.
- [Global Support] Rest assured about compatibility with your vehicle and language – ArtiDiag500 currently supports 67+ car brands, 10,000+ models, covering most vehicles worldwide, and is available in 12 languages. Whether it's for your car or preferred language, there's an ideal choice for you. Plus, it's fully compatible with Android 11 for smoother use.
- Comprehensive OBD2 Scanner with 15 Resets: The XTOOL D5S car code reader and vehicle reset tool provides an advanced diagnostic solution with 15 high demand reset functions, including Electronic Parking Brake Reset (EPB), SAS, BMS Reset, Throttle Body Relearn, TPMS Reset, ABS Bleeding, Injector Coding, Gearbox Match, Suspension Adjustment, Headlight, Window Initialization, Crank Sensor Relearn and more. Equipped with CAN FD Protocol and FAC AutoAuth, the D5S obdii scanner diagnostic tool ensures compatibility with a broad range of modern vehicles, allowing users to address common maintenance needs quickly.
- 4 Main System Car Diagnostic Scanner & Full OBD2 Diagnostics: The XTOOL D5S vehicle code reader is ideal for home mechanics, DIYers, and professionals, providing access to Transmission/Engine/ABS/SRS to read dtcs, and live data can be displayed in text or up to 4 pid data graphs, along with full OBD2 diagnostics to check the engine light on, other obd2 issues and routine maintenance. This scan tool ensures you can keep your vehicles in top condition, avoiding costly repairs or unexpected breakdowns. NOTE: Some vehicles display three systems after connection because the transmission and engine of some vehicles are integrated into one
- One-Tap W!Fi Updates + No Software Fees: Enjoy a 5.45” high-resolution touchscreen (1440x720) that’s easy to read, even in low light. Free lifetime software updates over Wi-Fi keep your D5S OBD2 Scanner Diagnostic Tool updated with the latest features—no hidden fees. Ample 32GB storage plus expandable memory ensures room for all your diagnostic data, while durable silicone grips provide comfortable, secure handling. This makes D5S a cost-effective, long-term investment for continuous diagnostic support, a reli~able automotive scanner diagnostic tool for your family
- Wide Compatibility Across 90+ Vehicle Brands: The XTOOL D5S Scanner for cars and trucks works with OBDII-equipped vehicles built after 1996, covering over 90 vehicle brands, including 12V diesel and SUVs, minivans, and light-duty trucks. It supports most of protocols include CAN FD for broad compatibility. For vehicle-specific compatibility, send us your vehicle information to check the compatibility before purchase
- Super Clear Navigation Display: The XTOOL D5S car scanner enhances your diagnostic workflow with a super clear navigation display, designed for convenience and speed. TOP Capability include a Voltage Display for real-time monitoring of your vehicle’s electrical system, a “My Vehicle” Menu for adding and managing vehicle information, and Quick Button Interfaces for both Auto Scan and OBD2 Diagnostics, ensuring you can quickly access the menu you need. These features streamline the diagnostic process, allowing you to focus on what matters most—Efficient vehicle maintenance
- 2025 FOXWELL Scanner NT716: New Bidirectional Scan Tool – Get active test capabilities for ABS, Airbag, Transmission, and Engine systems, easily perform various tests such as injectors, Cooling Fan, Fuel Pump, etc.The price of $ 200+ enjoys a $ 300-500 code reader service! With the NT716 Scanner Diagnostic Tool, You only need to plug in the device to accurately obtain real -time data information. To understand whether your car's system actuator is normal, prevent danger in advance, and drive with confidence. 👉P.S. The active test function needs to be upgraded before it can be used.
- 4-System Car Scanner for ABS, Airbag, Transmission, and Engine – Easily read error codes and ECU information, view 4-in-1 live data, and save or download data for later reference. The built-in DTC library explains fault codes clearly, and once issues are fixed, you can clear codes and turn off warning lights with just one tap. FOXWELL NT716 Code Scanner empowers you to handle most diagnostics on your own, saving you time and money instead of relying on an elusive mechanic.
- 9 Reset Functions – Unlike other obd2 scanner diagnostic tools in this price range that offer only 5–7 resets, FOXWELL NT716 scan tool supports 9 essential reset functions, including ABS Bleeding, SAS, Oil Light, EPB, BMS, DPF, Throttle Relearn, Injector Coding, and TPMS. You can monitor the running status of various systems of the car by live data flow, identify potential problems, reset system data, and extinguish the flashing oil lamp fault light! ❗Notice:This product does NOT have special functions for car k-ey p-rogramming.
- Full OBD2 Scanner with Plug-and-Play – Enjoy comprehensive OBDii functions, including AutoVIN for automatic vehicle info recognition, one-click I/M Readiness for emissions checks, real-time data, and freeze frame capture… Scanner FOXWELL NT716 makes it easy to prepare for annual inspections, helping you stay road-ready with confidence each year.
- 5.5" HD Touchscreen Tablet Diagnostic Scanner– Get rid of the confusion caused by the 2.8" scanner with multi - button operation; Built -in 4000mAh battery, the new version of the battery life is greatly enhanced; No subscription fee, no additional charges, share reports anytime, one - click free WiFi upgrade; Android 9.0 system, 24+language , support 100+ car brands from 1996 to 2025.
- 🎉【2025 Upgraded Ver. of AL519/ ML519/ ML619】Autel develops the brand-new AutoLink AL619 as the advanced ver. of Autel ML519, AL519, AL319, MS309. This AL619 OBD2 scanner can scan ABS & SRS systems, and support 10 Modes of OBD II Diagnostics Function on Worldwide Vehicles to read, erase codes and turn off the MIL, ABS, SRS warning lights so that you can better maintain your car when related malfunctions occur and make your vehicle ready for the annual test.🚦📢Kindly note: AL619 only supports 2015 or pre-2015 cars. And services are not universal, please send us your car VIN# to check the compatibility before ordering.📩AutelStoreOnline @ outlook . com📩.
- 🎉【Accurate ABS/ SRS Diagnostics Functions】The ABS/ SRS diagnostic function is used to retrieve and clear codes from the ABS/ SRS systems. It can read and clear DTCs, show definitions of each code, display live data of multiple sensors in the graph to locate fault causes, and assist home mechanics to do the proper repair and clear ABS & Airbag warning lights. Diagnoses ABS/ SRS system codes on most 1996 and newer major vehicle models. Please email 📩 AutelStoreOnline @ outlook . com 📩 for help.
- 🎉【All 10 Modes of OBD II Diagnostics Function】The OBD II Diagnostics function is a fast-access option that allows you to carry out a quick test on the engine system of OBD II vehicles. Read Codes, Erase Codes, Live Data, Freeze Frame, Retrieving I/M Readiness Status, O2 Monitor Test, On-Board Monitor Test, DTC Lookup, Component Test, Viewing Vehicle Information, Modules Present.
- 🎉【Live Data and Freeze Frame Data】With Live Data functions, Autel AL619 OBD2 diagnostic code reader allows you to view the live PID (Parameter Identification Data) of the vehicle's computer module(s) in text, graph to check the status of various sensors. And Freeze Frame Data enables you to view the vehicle's operating parameters at the moment a DTC is detected. These information will aid the technician by allowing the parameters to be duplicated for diagnostic and repair purposes.
- 🎉【DTC Lookup Feature】Besides showing you the code’s definition while you are reading the diagnostic trouble codes, AL619 features comparably user-friendly DTC Lookup Function which enables you to retrieve the definitions of any error codes from the large database of AL619, saving you from the hassle of wasting time searching definition of every code via Google.
- 【UPGRADE OF NT604-POWERFUL 5 RESETS】Wanna to do maintenance service for your car however the basic 4 system scanner tool can't do it? Then FOXWELL NT614 Elite-the upgraded version of nt604, was born for providing you with 5 special functions-ABS Bleeding/Oil Reset/SAS Calibration/EPB Reset/Throttle Reset. These functions are enough for your daily needs. No need to buy those 300-600 dollors obd2 scanner. Saving your unnecessary repair fee with FOXWELL nt614 car scanner diagnostic tool!
- 【ENGINE/ABS/SRS/TRANSMISSION CODE READER】Don't know what's wrong with your car when the warning light of ABS, transmission, SRS, Engine flashes? NT614 Elite obd2 scanner can pinpoint the problem components. It boasts many functions of engine, abs, srs and transmission such as read & erase fault codes and grapgh live data like engine temp, wheel speed sensor, read transmission temperature, etc. Compared with car repairs, using foxwell nt614 elite is more convenient and a-ffordable.
- 【Best Bang For Your Buck!-FOXWELL NT614 Elite】1. 2025 New software-faster than old one. 2. One click lifetime WIFI f-ree update, no need to use the annoying Micro SD card. 3. New Update-No need to register on the FOXWELL website before use, more convenient! 4. More intuitive viewing with new interface, you can find I/M, Battery Test, DTC Lookup directly.
- 【ABS BLEEDING OBD SCANNER】Do you always feel the brake pedal was slowly sinking to floor or it's loose after doing a complete front & rear brake job? And then you need to take more time than normal to stop your car, which is very dangerous. That's because when you open the brake system to replace components, air gets inside. To get a firm brake pedal, the air need to be removed by bleeding the brakes. NT614 Elite odb2 scanner can do ABS BLEEDING perfectly for your cars.
- 【SMART AUTOVIN & LIFETIME F-REE WIFI UPDATE & PERFECT GIFT CHOICE】With the fantastic AUTOVIN function, this nt614 scan tool can get your VIN and vehicle info rapidly. No need to spend much time in finding your VIN and input it one by one. Also, the lifetime f-ree wifi update is provided for more vehicle coverage, bug fixes, newly added parameters. SAVE AT LEAST 1000+ PER YEAR. And this automotive scanner is a best gift for your Dad, Husband, Boyfriend and Handy Men.
SEOCONTENT-START
February 2021 TechTIPS Page 1 of 9 Subaru Service and Technical Support Line Newsletter ©2021 Subaru of America, Inc. All rights reserved. 01 QMR of the Month We are pleased to announce this month’s QMR of the Month Winner: Diego Rubio-Rodriguez from Subaru of Las Vegas in Las Vegas, NV The winning Quality Monitoring Report selected from December’s submissions involved the diagnosis and repair of a 2020 Ascent with a customer concern of multiple warning lights in the combination meter and the EyeSight indicator coming on intermittently. Diego’s initial inspection for DTCs revealed a U1235 for Lost Communication with EyeSight. He began by connecting his scope to check both the low and high-speed CAN wiring at the EyeSight camera harness connector, R137. From there, he removed the driver’s A-pillar trim to access the i157 / R50 connector. With his scope still connected, he found the low speed CAN readings would fluctuate wildly when wiggling the harness connector but, the R96 / i19 connection is right next to i157 / R50. After a closer inspection of both connectors, pin 6 of i19 had backed out of the connector body due to a broken lock tab. A temporary repair was made to confirm the cause of the condition had been isolated before Diego proceeded to order the affected instrument panel harness. After installation of the replacement instrument panel harness, normal operation of all systems was restored. Diego provided a short video showing his scope patterns along with numerous photos of the failed pin terminal in support of his test results. In appreciation for going the extra mile and sharing his experience with us, Diego will be receiving the following from his Field Service Engineer: $500.00 Snap-On gift card SUBARU TECHLINE HOLIDAYS & HOURS OF OPERATION Mon. – Thurs. 8:30AM – 7:30PM EST Friday 10:30AM – 5:00PM EST Saturday 9:00AM – 3:00PM EST 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 Continued on the next page February 2021 home Continued on the next page February 2021 TechTIPS Page 2 of 9 01 QMR of the Month (CONTINUED) The other Regional winners selected from QMRs submitted during June 2020 were: • Christopher Beckfield from Chilson Subaru in Eau Claire, WI • Leo Gilmore from Ruge’s Subaru in Rhinebeck, NY • James Robertson from Parkway Subaru in Wilmington, NC • Daniel Evans from North Reading Subaru in North Reading, MA 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! 01 QMR of the Month Award Presentations As part of our “enhanced” QMR of the Month recognition program, we will include a photo (whenever available) of the recipient’s award presentation in TIPS. The winner selected from QMR of the Month submissions received during December, 2020 was Diego Rubio-Rodriguez, a Technician from Subaru of Las Vegas in Las Vegas, NV. Diego (center) is shown above after being presented with his $500.00 Snap-On Gift Card. Left to right are: Rob Wilkes, Subaru of America Field Service Engineer and Subaru of Las Vegas Service Manager Daniel Jongbloed. To Diego’s left are Subaru of Las Vegas’ General Manager Burton Hughes and Service Manager Steve Maffioli. Congratulations and THANK YOU to our December 2020 QMR of the Month Award recipient! February 2021 TechTIPS Page 3 of 9 Continued on the next page This series features TechTIPS articles frequently referred to by Techline. This month’s feature is from June 2015. 01 Combination Meter and BIU shipments to SOA If it becomes necessary to send in a BIU, combination meter, or any other component during the course of a Techline correspondence please ensure that you or the person packaging the box takes the time to review the following. • Did you use enough bubble wrap to properly protect the Combination Meter from damage during shipping? • Is the box large enough to ensure the bubble wrap will keep the Combination Meter protected during shipping? • Is the BIU wrapped and away from the Combination Meter to avoid damage or scratches? • Did you include a copy of the fax form in the box with your return address? Packing materials we suggest you avoid using: • Styrofoam packing peanuts • Inflated bags 06 C1921 – Electronic Parking Brake Inoperative DTC detecting condition: • A fault is detected if the switch was positioned at lock or release continuously for 90 seconds while the vehicle is stopped. • A fault is detected if an irregular switch condition continues for a predetermined period of time immediately after the switch position is changed. A fault is also detected if the switch condition is not confirmed afterwards. • A fault is detected if the switch harness is open or shorted. Continued on the next page February 2021 TechTIPS Page 4 of 9 06 C1921 – Electronic Parking Brake Inoperative (CONTINUED) When diagnosing a C1921 trouble code, be sure to thoroughly inspect the EPB switch. Since the switch is in close proximity to the center console cup holders, there is higher chance for debris and liquids to contaminate the switch assembly. When this happens, the result can be a DTC set or an inoperative EBP/switch. Sticky contaminates, such as spilled soda, can cause the switch to be ‘held’ also resulting in a DTC. If this is the case, do not attempt to clean the switch, it should be replaced. 15 Homelink Mirror, No Operation with Key Off Techline recently received an inquiry about a customer’s Homelink Mirror not operating when the key is in the off position. This was compared to like vehicles, where the operation was found with the key off. After investigating and discussing further with the supplier, the additional battery power to operate with the key off is not supplied to certain mirror assemblies. This depends on how the mirror was installed. • Accessory installed Homelink mirrors- Will Not operate with key in the off position. • Factory installed Homelink mirrors- Will operate with key in the off position. This is considered normal operation. Therefore, if faced with this concern, the Technician should check the vehicle inquiry to see which method the mirror was installed. Continued on the next page February 2021 TechTIPS Page 5 of 9 15 Failed RES: Reference Error Code SER-4357 Telematics Remote Engine Start (RES) is a very popular feature seeing high volume use especially during the cold winter and hot summer months. For example, during January 2021, customers made over five million RES requests! Because customers rely heavily on this feature, a clear understanding of the details is vital whenever diagnosing a failed RES concern. Diagnosing Telematics RES concerns can be challenging due to the lack of diagnostic trouble codes to indicate where diagnosis should begin. However, there are error messages which can appear on the MySubaru APP that may contain valuable information to help with diagnosis. If the customer arrives with a concern of RES requests are failing, one of the first questions should be is, what message appeared on the MySubaru APP following the failure? A screen capture of any messages that appear is valuable for reference and may be necessary when contacting Techline. An example of a message displayed following a failed RES request referencing an error code is shown here. Reference Error code SER-4357 indicates “negative acknowledgment” meaning although the vehicle has successfully received the RES request, there is a vehicle side system preventing engine start. Once the SER-4357 error message has been confirmed the on the customer’s phone, perform the preliminary diagnostic steps below: 1. Confirm the Telematics LED is GREEN. 2. Confirm proper operation of the power door locks. 3. Using the SSM4, verify the BIU indicates all the doors are locked. 4. Confirm proper operation of all door latch switches. 5. Using the SSM4, verify the BIU indicates all the door latches change from closed to open and vice-versa. 6. Verify the vehicle indicates it is in Park when the selector is in the Park position. 7. Using the SSM4, verify Park is indicated across all control modules consistently TCM
, ECM, BIU, and KACM. 8. Verify the Push-button Start indicator functions as expected by illuminating GREEN when depressing the brake pedal with the engine OFF. 9. If Steps 1 – 8 are confirmed to be operating properly as indicated, contact Techline for assistance with additional diagnostic steps. Technicians need to ensure all the systems outlined above work properly as preconditions to a successful RES. If all the vehicle’s side systems are functioning as expected, there are conditions on the back end infrastructure which may be the root cause of the failure but present no indication. These back end causes can only be addressed by opening a Techline case. Technicians faced with a RES concern and a vehicle that is otherwise operating as expected should contact Techline BEFORE any additional diagnosis, parts replacement or unnecessary repairs which may result in extended downtime. Continued on the next page February 2021 TechTIPS Page 6 of 9 15 Software Version Verification Reminder: For infotainment related concerns please always remember to review as applicable: Technical Support Guide, TSB 15-177-14R “Gen 2 and Gen 2.1 Operating Tips”, TSB 15-221-18R “Harman Audio/Infotainment: Harman Generation 3.0 and 3.1 Operating Tips”, TSB 15-259-20R “Denso Gen 4 Cockpit One (CP1) Infotainment System Operating TIPS Technical Support Guide.” When confirming CP1 system software version information, it is critical to allow the unit to finish the boot-up process before accessing the version information screen. Failure to allow the process to complete could result in missing version information or asterisk symbols (****) as shown below. A good practice would be to wait a minimum of 3 minutes after the boot-up process begins at key on for this information to load properly. However, this should not be confused with no “RAD_SW” version and “DSP_FW” version displayed or showing asterisk symbols (****) AFTER waiting for the system to completely boot-up. That would be a sign of a failed software update. For more details see Subarunet announcement “Recall WRH-20 / WRI-20 Denso Gen 4 CP1 software update. Critical points to avoiding unnecessary hardware replacement” posted January 5, 2021. Note: Deck version as asterisk symbols (****) is normal when a CD Player is not installed. Continued on the next page February 2021 TechTIPS Page 7 of 9 00 STIS New Releases ITEM CODE ITEM TYPE TITLE CREATED DATE E771SCC000 Accessory Installation Guide 2022MY BRZ Rear Bumper Appliqu… 10-Mar-21 WRB-21R Subaru Product/Campaign Bulletin Corrosion of the Air Condition… 10-Mar-21 12-315-21 Technical Service Bulletin Steering Column Cover Rubbing … 10-Mar-21 07-185-20R Technical Service Bulletin Seat Memory Control Module Dia… 10-Mar-21 F411SFL040 Accessory Installation Guide Crosstrek/Impreza 5DR Pet-frie… 8-Mar-21 07-191-21 Technical Service Bulletin DTC P257E / Hood Lock Assembly… 4-Mar-21 MSA5M2203A Owner Manual 2022MY Legacy Owner’s Manual 3-Mar-21 16-110-18R Technical Service Bulletin Reprogramming for “Shock” Felt… 3-Mar-21 H461SFL200 Accessory Installation Guide PORT INSTALLATION: 2019-2022MY… 2-Mar-21 12-314-21 Technical Service Bulletin Front Door Weatherstripping- D… 26-Feb-21 12-313-21 Technical Service Bulletin Rear Door Weatherstrip – Desig… 26-Feb-21 05-84-21 Technical Service Bulletin Front Wheel Hub Assembly- Desi… 26-Feb-21 12-311-21 Technical Service Bulletin Side Cowl Panel Trim- Design C… 25-Feb-21 12-309-21 Technical Service Bulletin Front Console Box Cover- Desig… 25-Feb-21 15-277-21 Technical Service Bulletin Exchange Cockpit Control Unit … 25-Feb-21 15-278-21 Technical Service Bulletin Telematics DTC B2A01- Diagnost… 25-Feb-21 16-132-20R Technical Service Bulletin Diagnostic Information for All… 23-Feb-21 15-234-18R Technical Service Bulletin 2019 Audio/Navigation & Power … 22-Feb-21 15-272-20R Technical Service Bulletin 2021 Audio/Navigation & Power … 22-Feb-21 15-214-17R Technical Service Bulletin 2018 Audio/Navigation Exchange… 22-Feb-21 15-249-19R Technical Service Bulletin 2020 Audio/Navigation & Power … 22-Feb-21 05-76-20R Technical Service Bulletin Front Wheel Hub Assembly- Desi… 22-Feb-21 05-83-21 Technical Service Bulletin Rear Sub Frame Bolts- Design C… 22-Feb-21 15-204-16R Technical Service Bulletin 2017 Audio/Navigation Exchange… 22-Feb-21 12-312-21 Technical Service Bulletin Center Console Armrest Cover -… 19-Feb-21 02-157-14R Technical Service Bulletin Engine Oil Consumption 19-Feb-21 01-167-08R Technical Service Bulletin Recommended Materials (All Veh… 18-Feb-21 F411SSJ000 Accessory Installation Guide 2020-2021 Forester Pet-friendl… 18-Feb-21 F411SAN020 Accessory Installation Guide 2020-2021 Outback Pet-friendly… 18-Feb-21 07-190-21 Technical Service Bulletin Part Change Information for th… 17-Feb-21 WRB-21 Subaru Product/Campaign Bulletin Corrosion of the Air Condition… 17-Feb-21 14-27-21 Technical Service Bulletin New Engine Support Assembly Re… 17-Feb-21 WRH-20R Subaru Product/Campaign Bulletin Rear Visibility FMVSS 111 Non-… 15-Feb-21 WRI-20R Subaru Product/Campaign Bulletin Reprogramming of Denso CP1 Inf… 15-Feb-21 05-82-21 Technical Service Bulletin Front Strut Dust Cover- Design… 15-Feb-21 07-189-21 Technical Service Bulletin Front Door Window Regulator- E… 15-Feb-21 07-184-20R Technical Service Bulletin Power Window Main Switch- Desi… 15-Feb-21 All revised publications are highlighted in yellow. Continued on the next page February 2021 TechTIPS Page 8 of 9 ITEM CODE ITEM TYPE TITLE CREATED DATE 15-221-18R Technical Service Bulletin Harman Audio / Infotainment: H… 12-Feb-21 12-310-21 Technical Service Bulletin Refinishing and Collision Repa… 11-Feb-21 15-236-18R Technical Service Bulletin Reprogramming File Availabilit… 10-Feb-21 SOA567S011 Accessory Installation Guide Thule Ski Carrier (All years, … 9-Feb-21 SOA567K011 Accessory Installation Guide Thule Hull-a-Port XT (All year… 9-Feb-21 11-202-21R Technical Service Bulletin DTC P1160 / Extended Cranking … 8-Feb-21 15-240-19R Technical Service Bulletin New Harman Audio Amplifiers 5-Feb-21 11-199-20R Technical Service Bulletin Reprogramming File Availabilit… 4-Feb-21 11-201-21 Technical Service Bulletin DTC P0116 and / or Hard Starti… 4-Feb-21 07-155-19R Technical Service Bulletin Power Rear Gate (PRG) Control … 3-Feb-21 11-200-20R Technical Service Bulletin Reprogramming File Availabilit… 3-Feb-21 WRA-21 Subaru Product/Campaign Bulletin CVT Select Lever Cable Nut- Lo… 1-Feb-21 12-192-15R Technical Service Bulletin Windshield Cracking Concerns 1-Feb-21 17-17-13R Technical Service Bulletin Event Data Recorder (EDR) Func… 29-Jan-21 10-100-21 Technical Service Bulletin A/C Compressor- Manufacturing … 28-Jan-21 18-205-21 Service Manual Correction Service Manual Corrections 28-Jan-21 All revised publications are highlighted in yellow. 00 STIS New Releases (CONTINUED) Continued on the next page February 2021 TechTIPS Page 9 of 9 *** 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:
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