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NHTSA ID Number: 10180732
Manufacturer Communication Number: 07-180-20
Summary
This service information bulletin provides revised diagnostics and additional reference information to use when diagnosing DTCs P1C45, 46, 47,48,49 and P1C5A.
NUMBER: 07-180-20
DATE: 9/8/2020
| APPLICABILITY: | 2014-16MY Crosstrek Hybrid |
| SUBJECT: | Auto Start-Stop Inoperative / DTC P1C45 to P1C5A |
INTRODUCTION:
This Service Information Bulletin provides revised diagnostics and additional reference information to use when diagnosing DTCs P1C45, 46, 47, 48, 49 and P1C5A, all relating to a Hybrid battery block voltage imbalance. When an imbalance between blocks of the hybrid battery exceeds .7v, the Auto Start-Stop feature becomes inoperative, the battery protection function activates which restricts battery performance and the operator is no longer able to select the EV Traveling Mode.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
The diagnostic procedures for the HEV Battery -related DTCs listed above have been revised and are provided below. The applicable Service Manuals will be updated with this new information in the near future. Service Manual procedures contain information critical to performing effective repairs the first time, every time. This includes but is not limited to important SAFETY precautions, proper inspection criteria, necessary special tools and required processes needed for a complete and lasting repair.
DIAGNOSTIC > HYBRID ELECTRIC VEHICLE(DIAGNOSTICS) > Diagnostics with phenomenon > INSPECTION
DIAGNOSTIC > HYBRID ELECTRIC VEHICLE(DIAGNOSTICS) > Read Current Data > HYBRID POWER TRAIN CONTROL SYSTEM (Auto Start Stop and EV TRAVELING CONDITIONS)
DIAGNOSTIC > HYBRID ELECTRIC VEHICLE(DIAGNOSTICS) > Diagnostics with phenomenon
New Drive Cycle (Drive Cycle J) NOTE: Always follow local traffic regulations while performing the drive cycle test procedure below.
- Prepare vehicle for Drive Cycle. (See applicable Service Manual PREPARATION FOR DRIVE CYCLE.)
- Set the shift lever to “P” range, air conditioner to OFF, and blower fan to OFF.
- Change the Multi-Function Display (MFD) screen to the Energy Flow mode and drive the car in order to adjust the high voltage battery charge level to the middle range. (This will keep the battery voltage from becoming too high during the EV assist mode.)
- Change the MFD screen to the Throttle Opening display.
- Depress the accelerator and drive at a speed of 15 km/h (9 MPH) to induce EV Traveling mode.
- Depress the accelerator to 35% within 2 seconds.
- Keep the throttle opening at 35% until the vehicle speed reaches 30km/h (19 MPH).
- Repeat steps 5-7 10 times. (No need to repeat steps 5-7 continuously, perform them 10 times when safe driving conditions allow.)
- Check for any DTCs. If any DTCs are displayed, diagnose by following the applicable Service Manual.
3 Affected Products
Vehicle
| MAKE | MODEL | YEAR |
| SUBARU | CROSSTREK | 2014-2016 |
1 Associated Document
Manufacturer Communications
NUMBER: 07-180-20
DATE: 9/8/2020
https://www.nhtsa.gov/recalls?nhtsaId=10180732
MC-10180732-0001.pdf 1118.296KB
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SEOCONTENT-START
Bulletin Number: 07-180-20; Date: 09/09/20 Page 1 of 3 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: 07-180-20 DATE: 9/8/2020 APPLICABILITY: 2014-16MY Crosstrek Hybrid SUBJECT: Auto Start-Stop Inoperative / DTC P1C45 to P1C5A INTRODUCTION: This Service Information Bulletin provides revised diagnostics and additional reference information to use when diagnosing DTCs P1C45, 46, 47, 48, 49 and P1C5A, all relating to a Hybrid battery block voltage imbalance. When an imbalance between blocks of the hybrid battery exceeds .7v, the Auto Start-Stop feature becomes inoperative, the battery protection function activates which restricts battery performance and the operator is no longer able to select the EV Traveling Mode. SERVICE PROCEDURE / INFORMATION: REMINDER: Customer satisfaction and retention starts with performing quality repairs. The diagnostic procedures for the HEV Battery -related DTCs listed above have been revised and are provided below. The applicable Service Manuals will be updated with this new information in the near future. Service Manual procedures contain information critical to performing effective repairs the first time, every time. This includes but is not limited to important SAFETY precautions, proper inspection criteria, necessary special tools and required processes needed for a complete and lasting repair. DIAGNOSTIC > HYBRID ELECTRIC VEHICLE(DIAGNOSTICS) > Diagnostics with phenomenon > INSPECTION SERVICE INFORMATION 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. ©2020 Subaru of America, Inc. All rights reserved. Bulletin Number: 07-180-20; Date: 09/09/20 Page 2 of 3 Continued… DIAGNOSTIC > HYBRID ELECTRIC VEHICLE(DIAGNOSTICS) > Read Current Data > HYBRID POWER TRAIN CONTROL SYSTEM (Auto Start Stop and EV TRAVELING CONDITIONS) DIAGNOSTIC > HYBRID ELECTRIC VEHICLE(DIAGNOSTICS) > Diagnostics with phenomenon Bulletin Number: 07-180-20; Date: 09/09/20 Page 3 of 3 New Drive Cycle (Drive Cycle J) NOTE: Always follow local traffic regulations while performing the drive cycle test procedure below. 1. Prepare vehicle for Drive Cycle. (See applicable Service Manual PREPARATION FOR DRIVE CYCLE.) 2. Set the shift lever to “P” range, air conditioner to OFF, and blower fan to OFF. 3. Change the Multi-Function Display (MFD) screen to the Energy Flow mode and drive the car in order to adjust the high voltage battery charge level to the middle range. (This will keep the battery voltage from becoming too high during the EV assist mode.) 4. Change the MFD screen to the Throttle Opening display. 5. Depress the accelerator and drive at a speed of 15 km/h (9 MPH) to induce EV Traveling mode. 6. Depress the accelerator to 35% within 2 seconds. 7. Keep the throttle opening at 35% until the vehicle speed reaches 30km/h (19 MPH). 8. Repeat steps 5-7 10 times. (No need to repeat steps 5-7 continuously, perform them 10 times when safe driving conditions allow.) 9. Check for any DTCs. If any DTCs are displayed, diagnose by following the applicable Service Manual. 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.
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