Safety Recall: WUV-07 – CVT Chain Slip – 2019 Subaru Ascent

December 2, 2019 NHTSA CAMPAIGN NUMBER: 19V855000

Incorrect Measurement of Hydraulic Fluid Pressure

If the fluid pressure is measured higher than its actual value, the hydraulic pressure will be reduced. If this occurs, the transmission drive chain may not have the proper tension, resulting in a loss of drive power and an increased risk of a crash.

 

NHTSA Campaign Number: 19V855

Manufacturer Subaru of America, Inc.

Components POWER TRAIN

Potential Number of Units Affected 76,842

 

Summary

Subaru of America, Inc. (Subaru) is recalling certain 2019 Ascent vehicles. The transmission hydraulic sensor may inaccurately measure the hydraulic fluid pressure.

 

Remedy

Subaru will notify owners, and dealers will reprogram the transmission control unit. The hydraulic sensor harness will be replaced on vehicles with certain stored diagnostic trouble codes. In addition, any vehicle confirmed to have experienced low drive chain tension will have the transmission assembly will be replaced. All repairs will be free of charge. The recall began January 31, 2020. Owners may contact Subaru customer service at 1-844-373-6614. Subaru’s number for this recall is WUV-07.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Subaru has a Recall


Subarunet Announcement

To: All Subaru Retailers From: Subaru of America, Inc.
Date: November 26, 2019

 

New STOP SALE/Safety Recall: WUV-07CVT Chain Slip Recall

 

Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019 model year Ascent vehicles in which the Continually Variable Transmission (CVT) chain may slip.

 

Description of the Defect and Safety Risk

The CVT chain may slip resulting in irregular noise, vibration, hesitation while driving, and/or MIL illumination. If driving under this condition continues, the vehicle may experience a loss of motive power, increasing the risk of a crash.

 

Affected Vehicles

A total of 76,842 U.S. vehicles will be affected by this recall, as listed below:

Model Year Carlines Production Date Range
2019 Ascent February 22, 2018 – May 7, 2019

Not all vehicles in the production ranges listed above are affected by these recall. Coverage must be confirmed by using the Vehicle Coverage Inquiry function on subarunet.com prior to repair.  Coverage information will be available today.

 

Service, Parts, and Claim Instructions

Reprogramming PAK files are currently available. Detailed service, parts, and claim information will be available in the WUV-07 Product Campaign Bulletin early next week. Until that bulletin is available, please refer to the service procedure and claim submission information at the end of this message.

 

Retailer Responsibility

Any vehicles listed in any recall/campaign that are in retailer stock must be:

  • Immediately identified
  • Tagged or otherwise marked to prevent their delivery or use prior to repair
  • Repaired in accordance with the repair procedures outlined in the Product Campaign Bulletin

Retailers are to promptly perform the applicable service procedures, to correct all affected vehicles in their inventory (used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into retailer inventory necessary steps should be taken to ensure the recall correction has been made before selling or releasing the vehicle.

Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $21,000 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement. 

 

Owner Notification

Subaru will notify affected vehicle owners by first class mail within 60 days. Owners with a valid email address on file will also be notified by email. Retailers will be advised when the notification is scheduled.

 

Service procedure and Claim Information

WUV-07 Service Procedure

 

Flow Chart:

Flow Chart

 

PARTS INFORMATION:

In a VERY RARE case where the CVT assembly or CVT wiring harness replacement is determined to be necessary, the parts ordering information is below:

NOTE: NEVER use old harness p.n. 24031AA850 for this repair.  Any remaining inventory of this p.n.

must be scrapped.

  • CVT Assembly: 31000AK130 for Ascent WITH auxiliary CVTF Cooler
  • CVT Assembly: 31000AK140 for Ascent WITHOUT auxiliary CVTF Cooler

 

SERVICE PROCEDURE:

REMINDER:  Customer satisfaction and retention starts with performing quality repairs.

Step 1- Connect the SSM4 and perform a DTC Check to see if any of the following DTCs are stored in either the TCM “Current” or “History” memory.

DTC Check

  • DTC P0842, P0867 or NO DTCs stored: Proceed to Step 2 and check for any abnormal sounds or vibration while performing stall test and test drive. See applicable Service Manual for stall test procedure.
  • DTC P0730 or P0757 stored (very rare case): Replace the CVT assembly following the procedure in the applicable Service Manual. When complete, clear the TCM of any DTCs and proceed to Step 4.

 

Step 2- Perform a stall test and test drive the vehicle to check for any abnormal noise or vibration.                     IMPORTANT NOTE:  A brief chirp -type sound heard when engaging R or D is a non-detrimental characteristic of this model CVT.

  • No abnormal sounds or vibration detected during stall test and test drive: proceed to STEP 3.
  • Abnormal sounds or vibration detected: replace the CVT assembly following the procedure in the applicable Service Manual. When complete, proceed to STEP 4.

 

Step 3- Was DTC P0842 or P0867 stored in the TCM while performing Step 1 above?

  • No DTCs stored: proceed to Step 4 and reprogram the TCM.
  • P0842 or P0867 is stored (very rare case): replace the CVT harness. See the applicable Service

Manual for the CVT harness replacement procedures.  For more experienced Subaru Technicians, an alternative procedure is provided in the Harness Replacement Tips section below.  When harness replacement is complete, clear the TCM memory of any codes, proceed to Step 4.  

 

Step 4- Reprogram the TCM following the normal FlashWrite procedure and perform the CVT Relearn procedure supplied in the applicable Service Manual.

 

IMPORTANT CAUTIONS:  

  • The PAK file is different for each car model.
  • Turn off all the electrical components to prevent the vehicle battery from going dead.
  • The Transmission Control Module may be damaged if the reprogramming is interrupted due to the PC battery going dead during the reprogramming, etc.
  • Supply power to the PC at all times during reprogramming.
  • Never turn off the PC power before reprogramming is completed.
  • NEVER disconnect any of the cables (power supply, DLC, USB cable) during reprogramming.

                 

Pack File Applicability: 

Model PAK File Name New TCM
Part
Number
Old TCM
Part
Numbers
Decryption
Keyword
New TCM
CID Number
Ascent WITH Auxiliary CVTF Cooler 30919AF99C.pak 30919AF99C 30919AF99A,
30919AF99B
06F4F4FF R8FEF700
Ascent W/OUT Auxiliary CVTF Cooler 30919AF98C.pak 30919AF98C 30919AF98A,
30919AF98B
2DAA4E53 R8FEE700

 

Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-100 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control module is being reprogrammed.

Once the Midtronics charger is connected to the vehicle, if the battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming.

 

NOTES:

  • For instructions on using the power supply mode, reference the applicable User Manual for the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR8-1100 Diagnostic Battery Charger on STIS.
  • Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all switched OFF before setting up the charger for Power Supply Mode.
  • Select the correct battery type (Flooded, EFB, Gel, AGM or AGM Spiral).
  • Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have different CCA ratings.  Always confirm the battery’s CCA rating before proceeding.
  • If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to 13.5 volts.
  • DO NOT connect the DST-i or SDI until the Power Supply mode function has completed its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on the display.
  • Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-i or SDI to the OBD connector and proceed with initiating the normal FlashWrite reprogramming process.
  • Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage rises beyond 14V while programming is in process, the procedure will abort. This can indicate a need to test or charge the vehicle battery before any further attempt at programming is made.

 

VERY IMPORTANT:

This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY.  It does not apply to any other brand / type of “generic” battery charger Safety Recall: WUV-07 - CVT Chain Slip - 2019 Subaru Ascent 6 whatsoever.  ONLY the DCA-8000 and the GR8-1100 and their Power Supply Mode feature have been tested and approved by SOA.

 

REMINDER:  If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge it fully using the DCA-8000 or GR8-1100 before proceeding to reprogram the vehicle using the Power Supply Mode.

 

NOTE:  Control module failures resulting from battery discharge during reprogramming are not a matter for warranty.  Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual.

 

Using the SSM4, clear the AT Learning Data using the following procedure:

  • Start > Diagnosis > Vehicle Selection > Each System > Transmission > Work Support > Clear AT Learning Data.
  • Click “YES” and when “Execute Clear AT Learning” is displayed, click “YES” again.
  • Turn the ignition OFF, wait at LEAST 30 seconds then turn the ignition back ON. At this point, the AT Temp light will start blinking; 4 times in 2 seconds to signify the Clear AT Learning procedure has completed successfully. If the AT Temp light does not flash as described, repeat Step 2 again from the beginning.

 

Using the SSM4, perform the AT Learning Control following the procedure outlined in the applicable Service Manual.

IMPORTANT: The NEW Calibration Identification number (CID) for any newly-installed programming (as confirmed from the actual control module AFTER installation) MUST be noted on the repair order as this information is required for claim submission. 

NOTE: The pack file listings provided in this bulletin are the latest available at the time of publishing.  Updates are often released thereafter without revision to the original bulletin.  For this reason, it is critical to always have the latest version of Select Monitor software installed on your system.  You can confirm if a later version is available by entering the CID listed in this bulletin into FlashWrite.  If a newer CID is shown as available in FlashWrite, reprogram using that file.

 

Harness Replacement Tips:

The following is being presented as an allowable alternative procedure for more experienced Subaru trained Technicians.  The CVT wiring harness can be replaced without removal of the CVT assembly using the procedure below:

  • Remove the battery ground terminal, intercooler and the pitching stopper following the procedures in the applicable Service Manual.
  • Disconnect the CVT harness bracket, the ground terminal and the primary speed sensor harness connector as shown in the photos below.

 

primary speed sensor harness connector
RIGHT LEFT
  • Raise the vehicle. Remove the center exhaust pipe (rear), selector cable, CVT oil pan, drain the CVTF and remove the propeller shaft following the procedures in the applicable Service Manual.
  • Set a transmission stand in place as shown below and remove the transmission rear cross member. CAUTION: NEVER place any stand or jack on the transmission pan as damage will occur which could lead to CVT failure.

transmission stand

 

  • Lower the transmission stand by NO MORE THAN 75mm. Remove the 6 bolts securing the transmission cover then CAREFULLY slide cover toward the rear of the vehicle.

CAUTION:  Never lower the transmission stand by more than 75mm or the A/C hose may be damaged.

 

NOTE:  TAKE YOUR TIME when removing the transmission cover being careful to not catch the inside of it on the external components of the CVT.

transmission cover

transmission cover

 

  • CAREFULLY remove the harness connectors and retaining clips shown below and remove the CVT harness from the CVT housing.

harness connectors

 

  • CAREFULLY remove the control valve body closely following the procedure in the applicable Service Manual and remove the CVT harness.

 

  • Install the new transmission harness, reassemble in reverse order of disassembly.
  • When complete clear the TCM memory of any DTCs, reprogram the TCM following the normal FlashWrite procedure and, perform the CVT Relearn procedure supplied in the applicable Service Manual.

 

Claim Reimbursement and Entry Procedures: 

Credit to perform this recall will be based on properly completed repair order information.  Retailers may submit claims through Subarunet.com.

Labor Description Labor Operation # Labor Time Fail Code
TCM REPROGRAMMING, Includes: DTC Check, Stall Test, Test Drive and CVT Relearn Procedure A186-701 0.9 WUV-07
CVT REPLACEMENT, Includes: TCM Reprogramming,

DTC Check, Stall Test, Test Drive and CVT Relearn Procedure

A130-341 5.6
CVT HARNESS REPLACEMENT, Includes: TCM Reprogramming, DTC Check, Stall Test, Test Drive and CVT Relearn Procedure A130-342 6.8

 

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.

NUMBER: WUV-07
NHTSA ID: 19V855
DATE: 12/05/19

APPLICABILITY: 2019MY Ascent
SUBJECT: CVT Chain Slip

 

INTRODUCTION: 

Subaru of America, Inc. (Subaru) is recalling certain 2019 model year Ascent vehicles in which midjoint of the transmission hydraulic sensor harness was made with dissimilar materials (tinplate and copper) which may cause an oxide film to form.  If an oxide film forms, the electrical resistance may increase, potentially causing an incorrect measurement of the hydraulic pressure.  If the fluid pressure is measured higher than its actual value, the Transmission Control Unit (TCU) programming was not robust enough to compensate for variation and would instruct the valve to lower the hydraulic pressure, thus potentially reducing the tension on the drive chain.  Customers may experience irregular noise and/or vibration while driving, and/or warning lamp illumination.  A total of 76,842 U.S. vehicles will be affected by this recall.

 

AFFECTED VEHICLES:

Model Year Carline Production Date Range Affected VIN Range
2019 Ascent February 22, 2018 – May 7, 2019 K3400001– K3481557

Not all vehicles in the production range listed above are affected by this recall. Coverage must be confirmed by using the Vehicle Coverage Inquiry function on Subarunet.com prior to repair. This information is now available.

 

REASON FOR THIS RECALL:

The transmission hydraulic sensor may incorrectly measure the hydraulic fluid pressure. If the fluid pressure is measured higher than its actual value, the hydraulic pressure will be reduced. If this occurs, the drive chain may not have the proper tension.

 

SAFETY RISK:

Customers may be able to recognize this condition from irregular noise and/or vibration while driving, and/or warning lamp illumination. Continuing to operate a vehicle experiencing this condition may ultimately result in loss of power while driving, increasing the risk of a crash.

 

DESCRIPTION OF THE REMEDY:

Subaru retailers will reprogram the TCU. Following the TCU reprogramming and after a drive test, DTC codes will be inspected and if certain DTCs are present, the hydraulic sensor harness will be replaced with an updated part. If vehicles are confirmed to have experienced, or are currently experiencing low drive chain tension, the transmission assembly will be replaced.

 

OWNER NOTIFICATION:

Subaru will notify all potentially affected vehicle owners by first class mail within 60 days. Owners with a valid email address on file with Subaru will also be notified by email.

 

RETAILER RESPONSIBILITY:

Please be advised that it is a violation of Federal law for a dealer to deliver a new motor vehicle covered by a recall under a sale or lease until the defect is remedied. Therefore, any Authorized Subaru Retailer failing to perform the applicable service procedures to correct all affected vehicles in their inventory prior to the vehicle being placed in service may be subject to civil penalties of up to $21,000 per violation (i.e., for each vehicle), as provided in 49 CFR §578.6 and will also be in breach of the Subaru Dealer Agreement.

 

Any vehicles listed in any recall/campaign that are in retailer stock must be:

  • Immediately identified.
  • Tagged or otherwise marked to prevent their delivery or use prior to repair.
  • Repaired in accordance with the repair procedures outlined in the Product Campaign Bulletin

Retailers are to promptly follow the applicable service procedures, to correct all affected vehicles in their inventory (used, demo & SSLP). Additionally, whenever a vehicle subject to this recall is taken into retailer inventory necessary steps should be taken to ensure the recall correction has been made before selling or releasing the vehicle.

 

SERVICE PROCEDURE:

REMINDER:  Customer satisfaction and retention starts with performing quality repairs.

Flow Chart:

Flow Chart

 

PARTS INFORMATION:

In a VERY RARE case where the CVT assembly or CVT wiring harness replacement is determined to be necessary, the parts ordering information is below:

IMPORTANT: NEVER use old harness p.n. 24031AA850 for this repair.  Any remaining inventory of this p.n. must be scrapped.

  • CVT Assembly: 31000AK130 for Ascent WITH auxiliary CVTF Cooler
  • CVT Assembly: 31000AK140 for Ascent WITHOUT auxiliary CVTF Cooler

 

Step 1- Connect the SSM4 and perform a DTC Check to see if any of the following DTCs are stored in either the TCM “Current” or “History” memory.

DTC Check

  • DTC P0842, P0867 or NO DTCs stored: Proceed to Step 2 and check for any abnormal sounds or vibration while performing a stall test and test drive. See applicable Service Manual for stall test procedure.
  • DTC P0730 or P0757 stored (very rare case): Replace the CVT assembly and flush the CVTF cooler following the procedures in the applicable Service Manual. When complete, clear the TCM of any DTCs and proceed to Step 4.

 

Step 2- Perform a stall test and test drive the vehicle to check for any abnormal sounds or vibration.

IMPORTANT NOTE:  A brief “chirp” -type sound heard when engaging Reverse or Drive is a nondetrimental operating characteristic of this model CVT.

  • No abnormal sounds or vibration detected during the stall test and test drive: proceed to Step 3.
  • Abnormal sounds or vibration detected: replace the CVT assembly following the procedure in the applicable Service Manual including CVTF cooler flushing. When complete, proceed to Step 4.

 

Step 3- Was DTC P0842 or P0867 stored in the TCM while performing Step 1 above?

  • No DTCs stored: proceed to Step 4 and reprogram the TCM.
  • P0842 or P0867 is stored (very rare case): replace the CVT harness. See the applicable Service Manual for the CVT harness replacement procedures.  For more experienced Subaru Technicians, an alternative procedure is provided in the Harness Replacement Tips section below.  When harness replacement is complete, clear the TCM memory of any codes, proceed to Step 4.

 

Step 4- Reprogram the TCM following the normal FlashWrite procedure and perform the CVT Relearn procedure supplied in the applicable Service Manual.

 

IMPORTANT CAUTIONS: 

  • The PAK file is different for each car model.
  • Turn off all the electrical components to prevent the vehicle battery from going dead.
  • The Transmission Control Module may be damaged if the reprogramming is interrupted due to the PC battery going dead during the reprogramming, etc.
  • Supply power to the PC at all times during reprogramming.
  • Never turn off the PC power before reprogramming is completed.
  • NEVER disconnect any of the cables (power supply, DLC, USB cable) during reprogramming.

 

PACK FILE APPLICABILITY:

Model PAK File Name New TCM
Part
Number
Old TCM
Part
Numbers
Decryption
Keyword
New TCM
CID
Number
Ascent WITH Auxiliary CVTF Cooler 30919AF99C.pak 30919AF99C 30919AF99A,
30919AF99B
06F4F4FF R8FEF700
Ascent W/OUT Auxiliary CVTF Cooler 30919AF98C.pak 30919AF98C 30919AF98A,
30919AF98B
2DAA4E53 R8FEE700

 

Subaru of America, Inc. (SOA) highly recommends connecting either the Subaru Midtronics DCA8000 Dynamic Diagnostic Charging System or the Subaru Midtronics GR8-100 Diagnostic Battery Charger to the vehicle and utilizing the Power Supply Mode feature anytime a vehicle control module is being reprogrammed.

Once the Midtronics charger is connected to the vehicle, if the battery is fully charged, it takes less than three (3) minutes to boot-up the charger, select the Power Supply Mode, and have the battery voltage stabilized and ready for reprogramming.

NOTES:

  • For instructions on using the power supply mode, reference the applicable User Manual for the Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Midtronics GR81100 Diagnostic Battery Charger on STIS.
  • Confirm all electrical loads such as lights, audio, HVAC, seat heaters, and rear defroster are all switched OFF before setting up the charger for Power Supply Mode.
  • Select the correct battery type (Flooded, EFB, Gel, AGM or AGM Spiral).
  • Input the CCA which matches the vehicle’s battery. NOTE: OE and replacement batteries have different CCA ratings.  Always confirm the battery’s CCA rating before proceeding.
  • If using a DCA-8000 Dynamic Diagnostic Charging System, set the power supply voltage to 13.5 volts.
  • DO NOT connect the DST-i or SDI until the Power Supply mode function has completed its battery test mode and the Charging Voltage has dropped to and shows a steady 13.5 Volts on the display.
  • Once Power Supply Mode reaches a steady 13.5 volts, connect the DST-i or SDI to the OBD connector and proceed with initiating the normal FlashWrite reprogramming process.
  • Amperage will fluctuate based upon the vehicle’s demand for power. NOTE: If the voltage rises beyond 14V while programming is in process, the procedure will abort. This can indicate a need to test or charge the vehicle battery before any further attempt at programming is made.

 

VERY IMPORTANT:

This information is applicable to the Subaru Midtronics DCA-8000 Dynamic Diagnostic Charging System and the Subaru Midtronics GR8-1100 Diagnostic Battery Charger ONLY.  It does not apply to any other brand / type of “generic” battery charger whatsoever.  ONLY the DCA-8000 and the GR8-1100 and their Power Supply Mode feature have been tested and approved by SOA.

REMINDER:  If the DCA-8000 or GR8-1100 indicates the vehicle’s battery must be charged, charge it fully using the DCA-8000 or GR8-1100 before proceeding to reprogram the vehicle using the Power Supply Mode.

NOTE:  Control module failures resulting from battery discharge during reprogramming are not a matter for warranty.  Should any DTCs reset after the reprogramming update is performed, diagnose per the procedure outlined in the applicable Service Manual.

IMPORTANT: The NEW Calibration Identification number (CID) for any newly-installed programming (as confirmed from the actual control module AFTER installation) should always be documented on the repair order.

NOTE: The pack file listings provided in this bulletin are the latest available at the time of publishing.  Updates are often released thereafter without revision to the original bulletin.  For this reason, it is critical to always have the latest version of Select Monitor software installed on your system.  You can confirm if a later version is available by entering the CID listed in this bulletin into FlashWrite.  If a newer CID is shown as available in FlashWrite, reprogram using that file.

 

Step 5- IMPORTANT: APPLICABLE ONLY AFTER REPLACING THE CVT ASSEMBLY OR THE TRANSMISSION HARNESS: Using the SSM4, perform the AT Learning procedure following the procedure outlined in the applicable Service Manual.

 

HARNESS REPLACEMENT TIPS:

The following is being presented as an allowable alternative procedure for more experienced Subaru trained Technicians.  The CVT wiring harness can be replaced without removal of the CVT assembly using the procedure below:

  • Remove the battery ground terminal, intercooler and the pitching stopper following the procedures in the applicable Service Manual.
  • Disconnect the CVT harness bracket, the ground terminal and the primary speed sensor harness connector as shown in the photos below.

primary speed sensor harness connector

  • Raise the vehicle. Remove the center exhaust pipe (rear), selector cable, CVT oil pan, drain the CVTF and remove the propeller shaft following the procedures in the applicable Service Manual.
  • Set a transmission stand in place as shown below and remove the transmission rear cross member. CAUTION: NEVER place any stand or jack on the transmission pan as damage will occur which could lead to CVT failure.

transmission stand

  • Lower the transmission stand by NO MORE THAN 75mm. Remove the 6 bolts securing the transmission cover then CAREFULLY slide cover toward the rear of the vehicle.

CAUTION:  Never lower the transmission stand by more than 75mm or the A/C hose may be damaged.

NOTE:  TAKE YOUR TIME when removing the transmission cover while being careful to not catch the inside of it on the external components of the CVT.

transmission cover

transmission cover

  • CAREFULLY remove the harness connectors and retaining clips shown below and remove the CVT harness from the CVT housing.

harness connectors

  • CAREFULLY remove the control valve body closely following the procedure in the applicable Service Manual and remove the CVT harness.
  • Install the new transmission harness, reassemble in reverse order of disassembly.
  • When complete, clear the TCM memory of any DTCs, reprogram the TCM following the normal FlashWrite procedure.

 

SERVICE PROGRAM IDENTIFICATION LABEL:

Type or print the necessary information on a Campaign Identification Label.

The completed label should be attached to the vehicle’s upper radiator support.  Additional labels are available through normal parts ordering channels. The part number is MSA6P1302, which comes as one sheet of 20 labels.

Part
Number
Applicability Description Order Quantity
MSA6P1302 All Models Campaign Completion Labels (contains one sheet of 20 labels) 1

 

CLAIM REIMBURSEMENT AND ENTRY PROCEDURES:

Credit to perform this recall will be based on properly completed repair order information.  Retailers may submit claims through Subarunet.com.

Labor Description Labor Operation # Labor Time  Fail Code
TCM REPROGRAMMING, Includes: DTC Check, Stall Test and Test Drive A186-701 0.9 WUV-07
CVT REPLACEMENT, Includes: TCM Reprogramming, DTC Check, Stall Test, Test Drive, CVTF Cooler Flush and perform AT Learning procedure A130-341 5.6
CVT HARNESS REPLACEMENT, Includes: TCM Reprogramming, DTC Check, Stall Test, Test Drive, CVTF Cooler Flush and perform AT Learning procedure A130-342 6.8

 

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.

 


1 Affected Product

Vehicle

MAKE MODEL YEAR
SUBARU ASCENT 2019

6 Associated Documents

Remedy Instructions and TSB

RCRIT-19V855-4223.pdf 1780.356KB

Download (PDF, 1.7MB)


Defect Notice 573 Report

RCLRPT-19V855-2068.PDF 214.923KB

Download (PDF, 210KB)


Recall Acknowledgement

RCAK-19V855-7359.pdf 244.925KB

Download (PDF, 239KB)


Manufacturer Notices(to Dealers,etc)- New STOP SALE/Safety Recall: WUV-07– CVT Chain Slip Recall

RCMN-19V855-2420.pdf 550.764KB

Download (PDF, 538KB)


Manufacturer Notices(to Dealers,etc)- Owner Notification Schedule: Recalls WUV07 & WUW08 and Service Campaign WUU06

RCMN-19V855-4305.pdf 125.832KB

Download (PDF, 123KB)


ISSUED Owner Notification Letter(Part 577)

RCONL-19V855-0347.pdf 229.815KB

Download (PDF, 224KB)


Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V855&docType=RCL

 


NUMBER: WUV-07
NHTSA ID: 19V855
DATE: 12/05/19

https://www.nhtsa.gov/recalls?nhtsaId=10169856

https://static.nhtsa.gov/odi/tsbs/2019/MC-10169856-0001.pdf

Download (PDF, 1.7MB)


NHTSA ID Number: 10168634

Manufacturer Communication Number: Subarunet Announ

Summary

Subaru of America, Inc. (Subaru) is initiating a new safety recall for certain 2019 model year Ascent vehicles in which the Continually Variable Transmission (CVT) chain may slip.


New STOP SALE/Safety Recall: WUV-07– CVT Chain Slip Recall

Date: November 26, 2019

https://www.nhtsa.gov/recalls?nhtsaId=10168634

https://static.nhtsa.gov/odi/tsbs/2019/MC-10168634-0001.pdf

Download (PDF, 542KB)


 

What J2534 reprogramming capabilities are available?

(4a) J2534 Reprogramming
Subaru reprogramming files using a generic (non-OEM) SAEJ2534 pass-thru vehicle programming device are available by contacting Service Technical Information Company toll free at 1-866-428-2278. The cost for the CD-ROM with all reprogramming files is $75.00 plus S/H and applicable state tax. Files will be updated four (4) times per year, in CD-ROM format, with all available reprogramming service information at the same above offered cost. Authorized Subaru Dealers are provided the same reprogramming information.

Before purchasing, the reprogramming details can be found in the following Reprogramming J-2534 Files chart. Click the link to view the PDF chart.

Subaru J2534 Reprogramming software meets the latest available J2534-1 specification. Our Reprogramming J2534 Files chart does not specify the Calibration Identification Number (CID); however, this information is included in our offered CD-Rom.

Note: The ECM or TCM being reprogrammed may already contain some or all of the reprogramming files listed in the Reprogramming J2534 Files chart shown by release date. It is possible to damage the vehicles ECM/TCMduring the reprogramming event. Once the reprogramming process has started, it is recommended not to interrupt the process until the event is completed. If you experience any problems, please contact your scan tool maker for further instructions.

 

(4b) Are all pre-2004MY Subaru vehicles compatible with J2534?

No. Subaru has no reprogramming capability for model years 1996-1998. Starting with our 1999 model year, please see our Reprogramming Pre-J2534 Files chart for affected model reprogramming information.

Both pre-J2534 reprogramming and J2534 pass thru reprogramming files are included in the offered HDS kit software for aftermarket service provider application.

techinfo.subaru.com


Tactrix Openport 2.0 Safety Recall: WUV-07 - CVT Chain Slip - 2019 Subaru Ascent 1
CarDAQ-Plus 2 Diagnostic Code Reader and J2534 Programming Tool Safety Recall: WUV-07 - CVT Chain Slip - 2019 Subaru Ascent 1
Drew Technologies (DRWCDPLUSKIT) CarDAQ-Plus J2534 Flash Reprogramming Kit Safety Recall: WUV-07 - CVT Chain Slip - 2019 Subaru Ascent 1
CarDAQ-M Modular PassThru J2534 Vehicle Reflash Hardware
Dearborn d-Bridge Adapter J2534 OBDII Engineering Tool Safety Recall: WUV-07 - CVT Chain Slip - 2019 Subaru Ascent 1
MAXIFLASH PRO (ALT-MF2534) Safety Recall: WUV-07 - CVT Chain Slip - 2019 Subaru Ascent 1

 

Bestseller No. 1
VXDIAG VCX Nano Diagnose and Programming Tool Compatible with J2534
  • VCX is designed on the basis of the latest automotive international standards so that it can support many professional automotive diagnostic applications
  • VXDIAG VCX Nano support latest version software, Compatible with varieties protocols. can be very easy to connect various automotive bus to a PC
  • OS support both WINDOWS XP and Windows 7, Software support multi-languages: Chinese, English, French, Italian, Spanish, German, ec
  • Small size, easy to carry and convenient for us
  • We provide full time online support, if you have any questions about our device, please feel free to contact us online via ask us a question or send us email
Bestseller No. 2
Autel (Maxisys Pro) MK908P Automotive Diagnostic Scan Tool Advanced Full System Scanner with ECU Coding and J2534 ECU Programming With TS401
  • The diagnostic tool comes with a J2534 ECU programming device that helps Benz and BMW users replace the existing software/firmware in the ECU, program new ECUs and fix software-controlled driving performance and emission issues. Welcom to contact [email protected] or ask through Q&A for your specific need and to ensure the vehicle compatibility.
  • The software of MK908P has a wide range of compatibility and can be used to diagnose vehicles from over 80 brands in the US, Europe and Asia. Moreover, you can get more newly added car models with the fast-release software update service.
  • MK908P, as the advanced version of MS908P,MS908S,MS908E, MS908PS PRO, features the 10.1” 1920*1200 screen upgraded from 9.7” 1024*768, and the battery capacity is 15000mAh increased by 4000 mA. Also, it has a better anti-impact protection design.
  • The diagnostic tool supports bi-direction control to check the vehicle operating conditions. The bi-directional control of the ECM in Component Test enables the MK908P to transmit control commands to operate the vehicle systems.
  • The MaxiFix provides you with an online troubleshooter database, and Remote Desk allows you to get help from others via TeamViewer software.
Bestseller No. 3
Autel Maxisys Elite Diagnostic Tool (Upgraded Version of MS908P Pro) with WiFi BT Full OBD2 Automotive Scanner with J2534 ECU Programming & 2 Years Free Update
  • ADVANCED ECU CODING Exceptional OE-Level functionality from comprehensive OBDII diagnostics & services to advanced ECU coding and programming working with a SAE J2534-1 & -2 compliant vehicle programming pass-thru interface
  • EXTENSIVE VEHICLE COVERAGE; The most extensive complete system coverage for more than 80 US domestic, Asian and European makes and models
  • AUTOMATIC SYSTEM Automatic system and software updates with real-time push message notifications via internet with instant remote control tech support anytime, anywhere and interactive Data Logging sessions enable direct contact with Autel
  • ACCURATE DIAGNOSIS Support for first-hand troubleshooting of diagnostic bugs and errors, and one-stop multitasking designed for ideal management of workshop operations to keep all data files, customer info, and vehicle records well organized
  • UNIQUE ERGONOMIC DESIGN; with rubberized outer protection and a rugged internal housing
Bestseller No. 4
VXDIAG VCXNANO-PW160 Auto Diagnosis Scan Tool for GM/OPEL GDS2 Tech2 Car Code Reader Scanner WiFi Version for Chevrolet Vehicle for Cadillac for Opel for Saab Diagnose Engines 2009-2017years Cars
  • ---【Guarantee】---:1/Year Free Update; ① ------Before purchase, suggest message us with your car brand ,model, productive year and the function you require. ②------ Work with computer Win7 System, 32bit, I5CPU 4G RAM , software Installation is a little complicated, We Support Remote help, feel free to contact us please
  • ---[Function]---: Work for GM vehicle for Buick, for Chevrolet, for Cadillac ( 2005-2017 Years); for Opel and for Saab ( 2009-2017 ) diagnose engines, OBD II Code reader, clear fault code, transmissions, ABS, instrument panels etc. Program and coding require online account, we don't offer.
  • ---[Compatible]---: ①------VXDIAG GM professional Diagnostic Tool Fully compatible with GM vehicle SAE-J2534-1 & SAE-J2534-2; ②------Because Antivirus software cannot recognize and regard VXDIAG software as virus, so, please shut down the antivirus software before you install software, hope you can accept, thank you.
  • ---[Connection]---:Quick access to vehicle data for maintenance or management reports, quickly attaches to vehicle's diagnostic connector. Connect car and device via 16pin OBDII port, connect device by USB cable/ WIFI
  • ---[Protocols]---:The software of VXDIAG VCX NANO for GM includes two parts: tech2win and GDS2. Version of tech2win: V33.003; Version of GDS2: V2016.1.0 ; Mixed fleet capabilities with broad protocol support, All current and most legacy vehicle protocols: CAN, UART, KW2000, Class2,for GM LAN, etc.
Bestseller No. 5
Veepeak FORScan USB OBD2 Adapter with HS-CAN MS-CAN Switch, Full-System Diagnostic Code Scanner Programmer Service Tool for Ford Mazda on Windows
  • FORScan TESTED and RECOMMENDED USB OBD2 Adapter: with labeled MS-CAN/ HS-CAN switch, specially designed for Ford Mazda vehicles, allowing access to more modules than regular OBD2 scanners.
  • Dealer-level Diagnostics: read and reset Diagnostic Trouble Codes, view real-time sensor data (PIDs) from various modules on HS-CAN & MS-CAN networks, such as Engine, Transmission, ABS, Airbag, TPMS etc.
  • Customize, Program and Service: configure the as-built data of your vehicle, enable hidden features & disable existing features, and run specific tests & service procedures without having to visit a dealer. For example, program keys, disable double horn honk, turn on daytime running lights.
  • Supported platforms: Windows 2000/XP/Vista/7/8/8.1/10, and Android via OTG (OTG cable not included). Baud rate up to 500 Kbps.
  • Compatible with Ford, Mazda, Lincoln and Mercury cars and trucks since year 1996, including Ford F150, F250, Ranger, Fusion, Explorer, Edge, Mustang, etc. May also work with other OBD-II compliant vehicles over other software (functions depending on software).
Bestseller No. 6
Autel MaxiCOM MK908P Diagnostic Tool Automotive Full System Diagnoses Coding and J2534 ECU Programming, The Upgraded Version of MS908P
  • ECU PROGRAMMING: The diagnostic tool comes with a J2534 ECU programming device that helps Benz and BMW users replace the existing software/firmware in the ECU, program new ECUs and fix software-controlled driving performance and emission issues.
  • VEHICLE COVERAGE: The software of MK908P has a wide range of compatibility and can be used to diagnose vehicles from over 80 brands in the US, Europe and Asia. Moreover, you can get more newly added car models with the fast-release software update service.
  • ADVANCED HARDWARE: MK908P, as the advanced version of MS908P, features the 10. 1” 1920*1200 screen upgraded from 9. 7” 1024*768, and the battery capacity is 15000mAh increased by 4000 mA. Also, it has a better anti-impact protection design.
  • BI-DIRECTIONAL CONTROL: The diagnostic tool supports bi-direction control to check the vehicle operating conditions. The bi-directional control of the ECM in Component Test enables the MK908P to transmit control commands to operate the vehicle systems.
  • ADDITIONAL SERVICE: The MK908P is designed to serve users with a rich array of easy-to-use functions and features. The Maxi Fix provides you with an online troubleshooter database, and Remote Desk allows you to get help from others via TeamViewer software.
Bestseller No. 7
Autel MaxiIM IM608 Key Programming Diagnostic Scan Tool with XP400 Key Programmer and J2534 ECU Reprogrammer, Top IMMO Functions & Programming Automotive Scanner APB112 & G-Box 2 Add-On (for US Only)
  • 【ADVANCED IN ONE KEY PROGRAMMING】Most advanced and the unique all in one key programming and diagnostic tool that combines advanced key programming, all systems diagnostics, and advanced services in one Android-based 10.1-inch touchscreen tablet.Read/write transponder data, ECU/MCU/EEPROM data (eg. 9S12 encryption chip), IC card, detect remote frequency.Please send VIN number to▲[email protected]▲ to check compatibility.
  • 【IMPORTANT IMMO FUNCTIONS FOR YOUR CAR】IMMO related functions, including Key Learning, Remote Control Learning, Remote Control Add, etc. The working range for BT communication is about 210feet (70 m)You can perform key programming and vehicle diagnosis on various vehicles conveniently, by pairing the tablet separately to each of the MaxiFlashc.
  • 【20+ SPECIAL SERVICE FUNCTIONS】▲Currently, IM608 just can be used in US. Please don't switch the IP or the device will be locked! Don't take IM608 to other countries▲It can retrieve ECU information, read & erase DTCs, and view live data. The Diagnostics application can access the electronic control unit(ECU) for various vehicle control systems, including engine, transmission, antilock brake system (ABS), airbag system (SRS).
  • 【OE-LEVEL CAR KEY PROGRAMMING】IM608 is equipped with XP400 key programmer and MaxiFlash ECU programmer to provide complete coverage of IMMO and programming functions. Note: Autel IM608 + APB112 + G-BOX2 can not work with XP200 Key Programmer. NOTE: APB112 is NOT universally compatible. Please send VIN number to [email protected] to check compatibility.
  • 【12-month Quality assurance is available】We'll offer you a solution if you have any doubts about this product. Enjoy this absolutely RISK-FREE purchase. If you have any issue after you get the item, please CONTACT>>▲[email protected] ▲, you can get a quick response.
Bestseller No. 8
Autel IM608 Key Programming Diagnostic Tool with IMMO XP400 Key Programmer J2534 Reprogrammer ECU Coding 23 Service Functions for Workshops Mechanics
  • ❄【ALL-ROUND IMMO FUNCTIONS】: Autel MaxiIM IM608 is a versatile Key Programming Diagnostic Tool with the core of comprehensive IMMO Services. You can read PIN/CS (all key lost), perform Key Learning, Remote Control Learning, Remote Control Add, etc. via Smart Mode (for guided and automated key learning ) or Expert Mode (for advanced key learning).
  • ❄【OE-LEVEL CAR KEY PROGRAMMING】: Integrated Car Key Programmer XP400 is to read transponder data (especially Benz infrared smart key), clone and generate exclusive keys, read/write on-board EEPROM data, etc. Included J2534 ECU Reprogrammer is for PC communication and ECU reprogramming capability. They work in combination with the IM608 to get the key programming work done in high efficiency and convenience. To check compatibility, contact [email protected] or ask through Q/A.
  • ❄【23 SPECIAL SERVICE FUNCTIONS】 : 23 commonly-used service functions (Oil Reset, EPB/BMS/SAS/DPF, etc.) helps quickly access to the vehicle systems for scheduled service and maintenance. Oil reset is to get the oil life reminder reset every time the oil is changed; EPB service is significant for deactivating and activating the brake control system, assisting with brake fluid control.
  • ❄【VEHICLE ECU CODING】 : It’s not a difficult task to modify preprogrammed software to improve vehicle performance anymore. While performing the works like remembering settings for Start/Stop systems, activating cornering headlights with fog lights, enabling multiple functions of the comfort module, Autel IM608, featuring ECU coding, can ensure the tested car is safe on the road.
  • ❄【12-MONTH UPDATE & WARRANTY】: You get a worry-free purchase. Within 12 months after purchase, you can easily get the newest version of the Autel IM608 for free via Auto update; material or workmanship defectives can be guaranteed without additional charges. Note: English is the default language, if needed, feel free to offer us the serial number to add required languages. Again, we welcome you to contact [email protected] or ask through Q/A for your specific need.
Bestseller No. 9
VXDIAG VCX Nano Diagnose and Programming Tool Compatible for Toyota and Lexus SAE J2534 WiFi Version
  • VCX is designed on the basis of the latest automotive international standards so that it can support many professional automotive diagnostic applications
  • WIFI Version VXDIAG VCX Nano compatible for TOYOTA and Lexus, support both USB connection and WIFI connection, support latest version software, Compatible with varieties protocols. can be very easy to connect various automotive bus to a PC
  • OS support both WINDOWS XP and Windows 7, Software support multi-languages: Chinese, English, French, Italian, Spanish, German, ec
  • Small size, easy to carry and convenient for us
  • One year warranty
Bestseller No. 10
Autel MK908P Diagnostic Scanner (MS908P MaxiSys Pro Upgraded, Same Functions as Elite) J2534 ECU Programming, Coding, Bi-Directional Control, Complete Systems Diagnoses with 25 Service Functions
  • 🥇【CERTIFIED BY AUTHORITY】: As an upgraded version of the MS908P,same function as MS908S PRO and MaxiSys Elite. This superior diagnostic device is awarded as the Best Vehicle Diagnostic Tool in Britain, and characterized by its high-end diagnostic features with easy-to-use operations. It’s an ultimate car scanner for DIYers, experienced mechanics, even garage to finish professional-level vehicle repair and maintenance.
  • 🏆【ECU Programming】This Autel scanner owns the same ECU programming function as the Autel Maxisys Elite. Equipped with SAE-J2534 box, this ECU programming tool allows you to reprogram adaptive data for different control units of BMW and Benz, fixing issues of drivability, fuel efficiency, power loss, fault codes and durability of mechanical parts.
  • 🏆【ECU Coding】Autel scanner MK908P offers the capacity of changing options within your vehicle’s ECU to add, subtract, or modify features. That means, many extra features can be unlocked through this diagnostic scan tool - High beams and Fog lights Together, Double blink hazards, Digital Accurate MPH Gauge, Remove Seatbelt Chimes, Enhanced Bluetooth Enable, etc.
  • 🏆【25 Service Functions】25 commonly-used service functions (Oil reset, EPB, BMS, DPF, Injector, etc.) of this Autel scanner are prepared for quickly accessing specific car systems for scheduled maintenance. Injector Coding is to program new injector numbers to replace the previous one. EPB is to assist with brake fluid control, open and close brake pads, etc. Throttle is to initialize the throttle actuators.
  • 🏆【Features for Easy Operation】Compared with Autel Maxisys Pro MS908P, this OBD2 scanner features more advanced configuration (Android 4.4 OS, Hexa-core processor, etc.) with more accessories (20+ adapters and cables ), which effectively improves the running speed and work efficiency. 12-month free updates and warranty are offered for you, basic functions could still be used without updates. To check wheather MK908P is compatible with your car, please send VIN number to [email protected]

Last update on 2020-04-08 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2020-04-08 / Affiliate links / Images from Amazon Product Advertising API

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