| “This site contains affiliate links for which OEMDTC may be compensated” |
NHTSA ID Number: 10187308
Manufacturer Communication Number: 07-112-16R
Summary
This bulletin provides a procedure for diagnosis and repair of DTC P0300 which may result from fluctuation of the alternator’s current output outside of the specified limits.
Forester
NUMBER: 07-112-16R
DATE: 08/12/16
REVISED: 08/08/17
| APPLICABILITY: | 2014-16MY Forester 2.5L Models |
|---|---|
| SUBJECT: | New Alternator Assembly to Address DTC P0300 |
INTRODUCTION:
This bulletin provides a procedure for diagnosis and repair of DTC P0300 which may result from fluctuation of the alternator’s current output outside of the specified limits.
PRODUCTION CHAGE INFORMATION
The new alternator and tensioner were incorporated into production starting with VIN: G*544643.
PART INFORMATION:
| Description | Part Number |
|---|---|
| ALTERNATOR ASSEMBLY | 23700AB030 |
| TENSR AY-VBELT | 23769AA05A  |
IDENTIFICATION:
SERVICE PROCEDURE / INFORMATION:
- Connect the SSM4 and inspect for stored DTC(s).
- If any DTC(s) other than P0300 are stored, follow the corresponding diagnostic procedure(s) in the applicable Service Manual before proceeding further with these repairs.
- Select the data for Roughness Monitor and Battery Current values.
- Check for any increase in the Roughness Monitor value along with the Battery Current value. If a fluctuation of more than +/- 3A is confirmed, both the alternator assembly and belt tensioner assembly must be replaced as a set with the new parts listed in the table above.
The reference illustrations below show examples of “Normal” and “Abnormal” SSM4 data.
The abnormalities shown above for the Roughness Monitor and Battery Current Value are a result of resonance originating in the alternator pulley assembly. Although a DTC P0300 can also be set, there is not an actual misfire of the engine.
- When determined necessary to replace the alternator and tensioner, follow the service procedures in the applicable Service Manual.
NOTES:
- The retaining bolt cover / plug has been deleted from the new tensioner, discard the original.
- Accessory drive belt replacement is NOT required as part of this repair.
3 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| SUBARU | FORESTER | 2014-2016 |
1 Associated Document
Manufacturer Communications
NUMBER: 07-112-16R
DATE: 08/12/16
REVISED: 08/08/17
MC-10187308-0001.pdf 423.629KB
Loading...
Reload document 
Open in new tab
NHTSA ID Number: 10117541
Manufacturer Communication Number: 07-112-16R
Summary
2.5L MODELS ONLY. This bulletin provides a procedure for diagnosis and repair of DTC P0300 which may result from fluctuation of the alternator’s current output outside of the specified limits.
1 Associated Document
Manufacturer Communications
NUMBER: 07-112-16R
DATE: 08/12/16
REVISED: 08/08/17
MC-10117541-9999.pdf 423.629KB
Loading...
NHTSA ID Number: 10120993
Manufacturer Communication Number: 07-112-16R
Summary
New Alternator Assembly. This bulletin provides a procedure for diagnosis and repair of DTC P0300 which may result from fluctuation of the alternator’s current output outside of the specified limits.
1 Associated Document
Manufacturer Communications
NUMBER: 07-112-16R
DATE: 08/12/16
REVISED: 11/08/16
MC-10120993-9999.pdf 414.986KB
Loading...
NHTSA ID Number: 10182588
Manufacturer Communication Number: 711216
Summary
This bulletin provides a procedure for diagnosis and repair of DTC P0300 which may result from fluctuation of the alternator?s current output outside of the specified limits.
1 Associated Document
Manufacturer Communications
NUMBER: 07-112-16
DATE: 08/12/16
MC-10182588-9999.pdf 414.236KB
Loading...
- 【Reliable Automotive Car Battery Tester】 KW208 is the most cost-effective battery tester compared to other brands, it has all the functions you need and the lowest spend that you can afford. KW208 can test all 12V 100-2000CCA batteries including regular flooded, AGM flat plate, AGM spiral, or gel batteries. Provide overall analysis of batteries’ health and help you know their status in advance before it dies. KW208 battery tester supports cranking and charging system tests also alternator and starter test. Perfect Xmas and New Year gifts for men and gifts for women. Conveniently store this battery charger for batteries in your glove box or garage, ready for use whenever needed.
- 【Display Overall Batteries Data】KW208 12V Battery Load Tester gives you reliable and overall battery parameters such as voltage, internal resistance, cold cranking amp and AH capacity, battery health and charge status. Additionally, battery cca tester will also show you professional advice whether to replace or recharge the battery. NEW REPLACEMENT AVAILABLE FOR ANY QUALITY ISSUE.
- 【 >99.99% High Accuracy】Thanks to KW208’s powerful and smart AI chip, it provides more than 99.99% precise testing reports within milliseconds, greatly improving the testing speed and testing accuracy compared to other battery testers. Besides KW208 is the only battery tester that has over 6000+ rating and is the most reliable and popular car battert tester on Amazon.
- 【Plug and Play】 KW208 Battery load analyzer allows you to test batteries both in-vehicle and out-of-vehicle, and even test dead batteries. Just connect the tester’s clips with battery then it will turn on and ready to test and analyze battery. It’s that easy!
- 【Starter& Alternator Tester】KW208 not only a great battery load tester that tests batteries cranking & charging system but also can test alternator's charging and starter's cranking conditions. And it can switch up to 8 languages for different needs.
- Feature Highlights: This 12V battery tester is a reliable tool for vehicle maintenance. It offers quick tests for battery health, voltage, and charge status, along with cranking and charging system tests to assess performance and ensure the reliability of your vehicle
- Accurate Testing: This car battery tester features advanced crocodile clips for a secure grip, high-quality copper for excellent conductivity, and an intelligent chip for precise diagnostics. It provides 99.6% accuracy, offering reliable data on your battery's condition. For accurate results, ensure correct battery type, standard, CCA/AH value, and confirm temperature (above/below 0°C)
- User-Friendly Design: Enjoy effortless testing with an intuitive interface and a large LCD display featuring adjustable contrast and a white backlight for clear readings. Designed for one-handed operation, it prioritizes convenience. Plus, with support for multiple languages, it accommodates diverse users seamlessly
- Safety Shield Pro: Confidently tackle tests with 4-in-1 safeguards neutralizing polarity reversal/short circuits/overcurrent/overvoltage, shielded by 3x-reinforced ABS to block battery damage & user risks—precision-engineered for uncompromised equipment performance.
- Universal 12V Power Solution – Combines global compliance (JIS/EN/DIN/SAE/BCI/GB/CA/MCA/IEC) , ensuring reliability for cars, trucks, boats, RVs and more. Compatible with Flooded/AGM/GEL/EFB batteries. Note: Excludes lithium, 6V/8V/24V batteries
- Easy Operation - Connect and Go. It provides a quick reading to determine if a vehicle battery needs a jump or replacing and also the alternator output status. Various Colored LEDs indicate the battery or the alternator status.
- Safety Ensured - Reverse-hookup and Over-voltage protection, making it safe and simple to use.
- High Accuracy - With a Four-character lighted digital display, the voltage testing accuracy will be close to 0.01volt.
- Testing Range - 4~20V DC. If the voltage is under 4volts, the screen will display - "LO"; If the voltage is above 20volts, the screen will display - "HI"
- Rubber Paint Body to achieve the original quality - Black Rubber Paint on the body surface to achieve the best feeling. As the inventor and the manufacturer of the tester, we are keen on the details to ensure the brand quality and the good custome buying experience.
- Accurate Testing: With intelligent chips enabling precise diagnostics, this car battery tester delivers exceptional accuracy of 99.8%, offering reliable insights into your battery's condition. Notice: To ensure accurate results, please select the correct battery type, standard, and CCA or AH value, and confirm the in vehicle/out of vehicle condition and temperature (above/below 0°F) prompts correctly.
- Wide Compatibility: Supporting various battery types (including flooded, AGM, GEL, EFB) for cars, trucks, hybrids, SUVs, boats, RVs, and motorcycles. The BT300 automotive battery tester complies with multiple standards (JIS, EN, DIN, SAE, CCA, BCI, GB, CA, MCA, and IEC), ensuring comprehensive testing for all requirements. Notice:It's not compatible with 6V batteries and is not suitable for use with lithium batteries.
- AH Value Attention: It is crucial to input the correct AH value of the battery during the quick test. Entering an incorrect AH value may result in inaccurate test results. Please check out the picture of CCA → AH Value on product description. If you are unsure of the correct AH value for your battery, it is recommended to use the standard test feature instead. The standard test does not require manual input of the AH value, but it does require inputting the CCA (Cold Cranking Amps)value, which is typically found on the battery label for more accurate testing results.
- Safety Assured: Ensue worry-free testing with protection against reverse polarity, short circuits, overcurrent, and overvoltage. The durable ABS shell of battery load tester enhances impact resistance and corrosion protection for an extended device lifespan, ensuring essential electrical safety during battery testing and avoiding any potential harm to vehicle batteries or personal safety.
- Work in Your Language: This is a versatile battery analyzer that caters to your needs. It supports 7 languages, ensuring you can effortlessly understand your battery diagnostics, no matter where you are. Get your BT300 alternator tester today! It's all about your convenience, precision, and global compatibility.
- Reliable Car Battery Tester:ANENG BT172 automotive battery tester is engineered to test 12V batteries across a variety of vehicles, such as cars, motorcycles, trucks, RVs, ATV, SUV, boats, yachts, mowers, and even golf carts.The accuracy of this car battery voltmeter is approximately 0.01V, ensuring dependable results.
- Alternator Charging System Analysis: Besides assessing if a vehicle's battery needs replacement or a jump start, BT172 can also evaluate the alternator's output status to prevent battery damage from overcharging or insufficient charging.
- Easy to Use: BT172 offers three modes for testing the alternator, 12V battery tester, In the middle mode, the LCD screen shows real-time voltage while LEDs indicate the alternator status. Switching to the 12V mode displays the real-time voltage on the LCD screen, with LEDs indicating the battery status.Note:Properly connect the meter battery clamps to the battery terminals: attach the red alligator clip to the positive terminal and the black alligator clip to the negative terminal.
- Protection Features: BT172 is equipped with reverse connection protection to prevent damage in case of incorrect hook-up.The voltage test range is 4-30V DC, and if the voltage is out of range, the screen will display 'LO' (＜4V) or 'HI' (＞30V), providing protection against over-voltage.
- We've Got You Covered: Each package includes BT172 battery tester, alligator clamps plug adapter cable, and a user manual. ANNENG electrical tester provides service and technical support.Buy with confidence!
- [CAR BATTERY TESTER] You may wonder if the battery needs to be replaced or just needs recharging. Our car battery checker tell you the battery health by battery and alternator test. Save your trip and money by avoiding sending good batteries to car manufacturers.
- [12V BATTERY TESTER] The car battery tester is for all 12V charging system, including regular flooded, AGM flat plate, AGM spiral and GEL batteries for vehicles, forklifts, hybrid cars, SUVs, Pickups, Boats, RVs, Motorcycles, travel Trailers.
- [6 LED INDICTORS] The 12V battery analyzer is perfect for home usage and commercial usage. Six LED lights show the status of battery and alternator, green means good/full, orange means middle, red means low. Intuitive, simple and clear. No need to know the voltage, we directly tell you the quality of the battery and alternator.
- [DURABLE DESIGN] The reverse protection function prevents burnout caused by misoperation between the (+)battery post and (-)cable terminal. Pure copper wire and clip make excellent conductivity and high sensitivity. No-slip design makes you are able to use it flexibly even wearing gloves.
- [WORRY-FREE PURCHASE] 100% No question asked return. If you have any question about the battery tester, please send message to us via Amazon. Our professional technical team will help you to solve the problems within 24 hours.
- First Things First: Cranking and Charging Tests are available only on APP. Both IOS users and Android Users need to download "Batterylab" App to get access to these two features. This tester CANNOT test lithium battery, nor 6V/24V batteries.
- Budget-Friendly: Below $20, the TOPDON battery tester BT20 is a great value for a car battery tester. With four testing modes (battery load, voltage test, two app-exclusive modes: cranking, and charging), this tester works on 12V lead-acid batteries. Note that the latter two test modes require an app.
- Expanded Testing Abilities with APP: The TOPDON BT20 battery load tester pairs with your device via Bluetooth to access additional cranking and charging tests. The app displays real-time voltage waveform graphs with data playback functionality. Note that Bluetooth is to be connected via the app, not phone settings.additional cranking, charging, and voltage testing capabilities. Easily view real-time voltage waveform graphs with data playback functionality. NOTE: Bluetooth is to be connected via APP, not phone setting.
- Fast & Accurate Results: Get battery life displayed in Low/Medium/High within 1 second by clicking the TEST button. The testing accuracy can reach 99.5%, thanks to the latest conductivity technology. The TOPDON BT20 battery tester is ideal for users who want quick and reliable results. Note that Bluetooth is to be connected via the app, not phone settings.
- Universal Compatibility & Multi-Language Support: Ready to use with 12V lead-acid batteries found in a variety of vehicles, including boats, motorcycles, ships, and trucks. With 8 different language options, it's easy to use this device anywhere in the world.
- 【Checking Your battery's and charging system (alternator) health】 Easily plugs into any DC 12 Volt cigarette lighter plugs,If you doubt your battery's health plug it in and get detailed readings.
- 【LCD DISPLAY】 Shows the measured voltage with a bar graph to indicate batteries charging level
- 【PIVOTING HEAD】Swivel head makes it easy to read. It also allows adjustment to avoid hitting with the shifter .
- 【POCKET SIZE】The small size makes it handy and practical.
- 【WARRANTY】- We stand behind all our TN TONNY products. We give 1 year GUARANTEE for our product
- 【Battery Testing Assistant】:This car battery tester can not only determine whether the car battery needs to be replaced or jump-started and evaluate the alternator's output status but also comprehensively analyze the battery's health and state of charge, voltage, internal resistance, cold-start amplifier, and AH capacity. It can effectively prevent the battery from being damaged due to over- or under-charging.
- 【Clear LED Display】:This car battery capacity analysis is equipped with a digital display screen, which can easily see the measurement value at night to assist the measurement work and help you read the data quickly and easily.
- 【Easy to Use】:This alternator tester is easy to use. The red clip is connected to the positive pole '+' and the black clip is connected to the negative pole '-'. After correctly connecting and switching on the alternator, the LED display will show the real-time voltage of the measured voltage, and at the same time, the LED light will be on to indicate the battery status.
- 【Protection Features】:This car battery tester has a reverse connection alarm function, if the connection is reversed then the LED display does not show, and the 'REVERSE' indicator lights up to send out an alarm prompt, this function can avoid damage caused by wiring errors.The voltage test range is 4-30V DC. It also has an over-voltage protection function, if the voltage is out of range, the 'HIGH' LED will light up to provide over-voltage protection for the device.
- 【Widely Used】:This car battery capacity analysis is widely used in the automotive repair industry and is suitable for most vehicles fitted with 12V batteries, such as cars, motorbikes, trucks, motorhomes, ATVs, buggies, boats, yachts, lawnmowers, and even golf carts. It is an ideal tool for maintaining and repairing both domestic and business vehicles.
- 12V Car Battery Tester: TOPDON BT200 automotive battery tester works on all 12 Volt and 24 Volt batteries with 100 to 2000 CCA, such as regular flooded, AGM flat plate, AGM spiral, GEL, and deep cycle batteries for vehicles, cars, motorcycles, trucks, RVs, ATVs, SUVs, boats, yachts, mowers and even golf carts. Know everything about the health of 12V batteries, the 12V&24V starter motor's cranking status, and 12V & 24V vehicle electronic system's charging condition
- Battery & Cranking & Charging Test: With this BT200 battery tester, you can check the overall health of the battery including the cranking test, run a complete system charging test. Cranking test helps you test and analyze the starting motor to check it works properly or not, and the charging test is to check the charging system status to avoid damaging the battery because of overcharge or incomplete charge. It's much more convenient than driving miles to find the nearby auto repair shop
- A Must Tool For DIYers & PROS: TOPDON BT200 battery tester is an upgraded version of the BT100, AB101 and BT20. Applying the advanced conductance testing technology, it can give you accurate testing results in seconds. Fit in your glove box, it's a handy device for automobile factory, garage, auto battery manufacturer, and DIYer
- 2.4 Inch Color LCD Screen: Unlike most monochrome LCD screen on market, TOPDON BT200 battery load tester is equipped with a 2.4-inch color LCD screen, which is eye-friendly and easy to read even in direct sunlight
- What You Get: TOPDON BT200 Vehicle Battery Tester, User Manual. If you have any questions, you can also call us directly during normal business hours: US phone service: 833-956-8335, Monday-Friday 9:00AM-6PM Eastern Time
SEOCONTENT-START
Bulletin Number: 07-112-16R; Revised: 08/08/17 Page 1 Continued… CAUTION: VEHICLE SERVICING PERFORMED BY UNTRAINED PERSONS COULD RESULT IN SERIOUS INJURY TO THOSE PERSONS OR TO OTHERS. Subaru Service Bulletins are intended for use by professional technicians ONLY. They 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 this Service Bulletin applies to your vehicle, or that your vehicle will have that condition. SUBARU OF AMERICA, INC. IS ISO 14001 COMPLIANT 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. NUMBER: 07-112-16R DATE: 08/12/16 REVISED: 08/08/17 APPLICABILITY: 2014-16MY Forester 2.5L Models SUBJECT: New Alternator Assembly to Address DTC P0300 INTRODUCTION: This bulletin provides a procedure for diagnosis and repair of DTC P0300 which may result from fluctuation of the alternator’s current output outside of the specified limits. PRODUCTION CHAGE INFORMATION The new alternator and tensioner were incorporated into production starting with VIN: G*544643. PART INFORMATION: IDENTIFICATION: NEW: Silver belt surface of pulley OLD: Black belt surface of pulley NEW: Top portion appearance changed and retaining bolt cap deleted. OLD: 3 slots in top portion Description Part Number ALTERNATOR ASSEMBLY 23700AB030 TENSR AY-VBELT 23769AA05A SERVICE BULLETIN ATTENTION: GENERAL MANAGER q PARTS MANAGER q CLAIMS PERSONNEL q SERVICE MANAGER q IMPORTANT – All Service Personnel Should Read and Initial in the boxes provided, right. © 2016 Subaru of America, Inc. All rights reserved. Bulletin Number: 07-112-16R; Revised: 08/08/17 Page 2 Continued… SERVICE PROCEDURE / INFORMATION: • Connect the SSM4 and inspect for stored DTC(s). • If any DTC(s) other than P0300 are stored, follow the corresponding diagnostic procedure(s) in the applicable Service Manual before proceeding further with these repairs. • Select the data for Roughness Monitor and Battery Current values. • Check for any increase in the Roughness Monitor value along with the Battery Current value. If a fluctuation of more than +/- 3A is confirmed, both the alternator assembly and belt tensioner assembly must be replaced as a set with the new parts listed in the table above. The reference illustrations below show examples of “Normal” and “Abnormal” SSM4 data. Bulletin Number: 07-112-16R; Revised: 08/08/17 Page 3 The abnormalities shown above for the Roughness Monitor and Battery Current Value are a result of resonance originating in the alternator pulley assembly. Although a DTC P0300 can also be set, there is not an actual misfire of the engine. • When determined necessary to replace the alternator and tensioner, follow the service procedures in the applicable Service Manual. NOTES: • The retaining bolt cover / plug has been deleted from the new tensioner, discard the original. • Accessory drive belt replacement is NOT required as part of this repair. WARRANTY / CLAIM INFORMATION: For vehicles within the Basic New Car Limited Warranty period or covered by an active Subaru Added Security Classic or Gold plan, this repair may be submitted using the following claim information: Labor Description Labor Operation # Labor Time Fail Code FORESTER ALTERNATOR REPLACEMENT for DTC P0300 A812-234 0.7 FCP-42 IMPORTANT REMINDERS: • SOA strongly discourages the printing and/or local storage of service information as previously released information and electronic publications may be updated at any time. • Always check for any open recalls or campaigns anytime a vehicle is in for servicing. • Always refer to STIS for the latest service information before performing any repairs.
**************************************************************************************************************
SEOCONTENT-END
Last update on 2025-05-08 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
