NHTSA ID Number: 10241845
Manufacturer Communication Number: 07-221-23
TSB/Document Date: 2023-09-05
Summary
This bulletin announces the repair procedures when corrosion is encountered within the instrument panel wiring harness and the rear wiring harness connectors.
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TSB/Document ID: 07-221-23
Replacement Service Bulletin Number:
MFR Communication Date: 2023-08-31
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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ATTENTION:
GENERAL MANAGER
q
PARTS MANAGER
q
CLAIMS PERSONNEL
q
IMPORTANT - All
Service Personnel
Should Read and
Initial in the boxes
provided, right.
SERVICE MANAGER
q
© 2023 Subaru
of America, Inc. All rights reserved.
SERVICE BULLETIN
APPLICABILITY:
2017-23MY Impreza
2018-23MY Crosstrek
2019-23MY Forester
2022MY WRX
NUMBER: 07-221-23
SUBJECT:
Instrument Panel Wiring Harness & Rear
Wiring Harness – Connector Corrosion
DATE: 08/31/23
INTRODUCTION:
This bulletin announces the repair procedures when corrosion is encountered within the instrument
panel wiring harness and the rear wiring harness connectors. The corrosion is typically found in the
footwell area as a result from moisture such as rain, snow, ice, and salt water being brought in from
driver and/or passenger footwear. Corrosion in this area can cause multiple electrical malfunctions
such as warning indicators and/or incorrect door position detection. If corrosion is found within this
area(s), replace the affected wiring harness and perform the added procedure detailed below using the
new repair kit. The purpose of the repair kit is to isolate the connections from any moisture damage.
WIRING HARNESS DETAIL INFORMATION:
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: 07-221-23; Date: 08/31/23
Page 1 of 9
IMPORTANT: The left front door cord harness can only be affected on Forester models with
seat memory.
Continued...
Bulletin Number: 07-221-23; Date: 08/31/23
Page 2 of 9
EXAMPLES OF CORROSION:
PART INFORMATION:
There have been no changes to the wiring harnesses. The new repair kit and outlined procedures
MUST be applied when replacing the affected harnesses for corrosion intrusion.
REMINDER: Always order the most up-to-date replacement parts based on the specific VIN being
repaired.
Part Description
Part Number
REPAIR PARTS
81990SJ01A
SERVICE PROCEDURE / INFORMATION:
Perform the following inspection procedures if moisture is suspected to be present within the
connectors of the instrument panel wiring harness, rear wiring harness, and/or left front door cord
(Forester with seat memory ONLY).
STEP 1: Remove the lower inner trim panel on the side of the vehicle with suspected corrosion.
Expose the connections and confirm if corrosion is detected.
NOTE: If a waterproof sheeting is installed, it must be removed for proper inspection.
Continued...
Bulletin Number: 07-221-23; Date: 08/31/23
Page 3 of 9
If corrosion is detected, the affected harnesses MUST be replaced. If no corrosion is found continue
the vehicle diagnosis using the applicable Service Manual.
STEP 2: Replace the affected wiring harness. The service procedures for instrument panel, left front
door cord, and the rear harnesses remain 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, every time. This includes
but is not limited to important SAFETY precautions, proper inspection criteria, necessary special
tools, required processes and related one-time-use parts needed for a complete and lasting repair.
IMPORTANT: When replacing the instrument panel wiring harness, rear wiring harness, or left front
door cord harness, take special care when handling the ground terminal.
Continued...
Bulletin Number: 07-221-23; Date: 08/31/23
Page 4 of 9
STEP 3: Remove the plastic connector holder. This holder will no longer be used.
STEP 4: Clean and degrease the areas indicated in the image to
the right.
STEP 5: Installed the ground terminal to the
vehicle body. Keep the terminal horizontal
while torquing the bolt to 13Nm (9.5 ft-lbs.)
then connect the lower connector.
Continued...
Bulletin Number: 07-221-23; Date: 08/31/23
Page 5 of 9
STEP 6: Using the large size waterproof sheet, remove half of the separator sheet and place the lower
connector in the center of adhesive side.
Waterproof Sheet
STEP 7: Completely remove the separator sheet and fold the waterproof sheet in half. Confirm the
connector is fully covered and not exposed.
CAUTION: CONFIRM the adhesive surfaced a firmly attached to each other in order to prevent
any water intrusion. CONFIRM the exterior tape on the wiring harness is sealed and covered by the
waterproof tape.
a
Continued...
Bulletin Number: 07-221-23; Date: 08/31/23
Page 6 of 9
STEP 8: Attach the connector to the body of the vehicle using the excess of the adhesive surface of
the waterproof sheet.
STEP 9: Using the mid size waterproof sheet and using the same sheet application method used in
Step 6, cover the center connector with the waterproof sheet and adhere it to the vehicle body.
Continued...
Bulletin Number: 07-221-23; Date: 08/31/23
Page 7 of 9
STEP 10: Forester models with seat memory ONLY. Using the small size waterproof sheet
and using the same sheet application method used in Step 6, cover the upper connector with the
waterproof sheet and adhere it to the vehicle body.
IMPORTANT: The connectors MUST be positioned on an even line with each other. DO NOT
overlap the connectors. Improper connector alignment may cause interference with the interior trim
components.
Continued...
Bulletin Number: 07-221-23; Date: 08/31/23
Page 8 of 9
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
INSTRUMENT PANEL WIRING HARNESS AND
REAR WIRING HARNESS R&R
Labor
Operation #
A880-207
Repair
Code
Labor
Time
Model
6.6
Impreza 17-23
6.6
Crosstrek 18-23
6.6
Forester 19-23
7.1
Forester 19-23 with power
seat memory*
6.9
WRX 2022
VOJ-39
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: 07-221-23; Date: 08/31/23
Page 9 of 9
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