16-128-20

ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
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CLAIMS PERSONNEL
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IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE MANAGER
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© 2020 Subaru of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
2019-20 Ascent
NUMBER: 16-128-20
SUBJECT: DTC P0842 / Transmission Harness
		Interchangeability
DATE: 04/02/20
INTRODUCTION:
This bulletin announces availability of a new transmission harness for use when diagnosis of
DTC P0842 -TRANSMISSION FLUID PRESSURE SENSOR / SWITCH “A” CIRCUIT LOW
determines the sensor itself is OK but the transmission wiring harness is NG.
PART INFORMATION:
The new transmission wiring harness part number is: 24031AA851.
REMINDER: Always order the most up-to-date replacement parts based on the specific VIN being
repaired.
SERVICE PROCEDURE / INFORMATION:
REMINDER: Customer satisfaction and retention starts with performing quality repairs.
The service procedures for transmission harness diagnosis and replacement are unchanged.
Always refer to the applicable Service Manual and review the full requirements of the repair
being performed. The Service Manual procedures contain information critical to performing an
effective repair the first time and every time. This includes but is not limited to: important SAFETY
precautions, proper inspection criteria, necessary special tools, required processes and related onetime-use parts needed for a complete and lasting repair.
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.
Continued...
Bulletin Number: 16-128-20; Date: 04/02/20
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WARRANTY / CLAIM INFORMATION:
For vehicles within the Basic New Car Limited or Powertrain Limited Warranty period or covered by
an active Subaru Added Security Powertrain, Classic or Gold plan, this repair may be submitted using
the following claim information:
Labor Description
Labor Operation #
Labor Time
CVT ASSEMBLY R&R
B303-001
4.2
CVT WIRING HARNESS R&R
C303-673
1.1
TORQUE CONVERTER RE-LEARN &
BATTERY DISCONNECT
C303-708
0.1
ELECTRICAL TESTING & DIAGNOSIS
C303-711
0.5
Fail Code
MSN-48
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.
Bulletin Number: 16-128-20; Date: 04/02/20
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