PIP5700G Service Bulletin/Repair Instructions

Bulletin No.: PIP5700G
Service Bulletin
Date: January, 2026
PRELIMINARY INFORMATION

Subject:

Brand:
8L45 8L90 Internal Wiring Harness Part Numbers By Application

Model:
Model Year:

from
VIN:

to
from
Engine:
Transmission:
to
Cadillac
ATS Models
2016 - 2019
All
All
All
M5N M5T M5U
Cadillac
CT4 Models
2020 - 2023
All
All
All
M5N
Cadillac
CT6
2016 - 2018
All
All
All
M5N M5X
Cadillac
CTS Models
2016 - 2019
All
All
All
M5N M5U
Cadillac
Escalade
2015 - 2017
All
All
All
M5U
Cadillac
Escalade

ESV
2015-2017
All
All
All
M5U
Chevrolet
Camaro
2016 - 2023
All
All
All
M5T M5U
Chevrolet
Colorado
2017 - 2022
All
All
All
M5T
Chevrolet
Corvette
2015 - 2019
All
All
All
M5U
Chevrolet
Express
2017 - 2023
All
All
All
M5U
Chevrolet
Silverado

1500
2015 - 2018
All
All
All
M5U M5X
Chevrolet
Silverado

1500 New

Model
2019
All
All
All
MQE
Chevrolet
Silverado

1500
2020 - 2023
All
All
All
MQE
GMC
Canyon
2017 - 2022
All
All
All
M5T
GMC
Savana
2017 - 2023
All
All
All
M5U
GMC
Sierra 1500
2015 - 2018
All
All
All
M5U M5X
GMC
Sierra 1500

New Model
2019
All
All
All
MQE
GMC
Sierra 1500
2020 - 2023
All
All
All
MQE
GMC
Yukon
2015 - 2017
All
All
All
M5U
GMC
Yukon XL
2015 - 2017
All
All
All
M5U
Involved Region or Country
North America
Condition
Some customers may comment on the operation or performance of the 8L45 or

8L90 transmission.
Cause
Diagnostics may lead to the replacement of the transmission internal wiring harnesses.

At this time the part numbers for the 2 piece harness are not available in the Electronic

Parts Catalog.
Correction

Please refer to following information to obtain the part numbers for the transmission internal harnesses by application.
Copyright 2026 General Motors. All Rights Reserved.
Page 2
January, 2026
Bulletin No.: PIP5700G
Note: ESS refers to vehicles equipped with Start Stop and Non ESS refers to vehicles that are not equipped with

Start Stop.

Note: One piece wiring harnesses are no longer available.

Please refer to the following GDS2 data to aid in determining if the vehicle you are working on has a 10 pin or a 4 pin

internal mode switch.

Below is an example of the transmission data from a vehicle equipped with a 10 pin internal mode switch.
5583333
Below is an example of the transmission data from a vehicle equipped with a 4 pin internal mode switch.
5583332
Bulletin No.: PIP5700G
January, 2026
Page 3
Please refer to the following pictures to aid in determining which internal mode switch is installed in the vehicle you

are working on.

Example of a 10 pin internal mode switch.
5480314
Example of a 10 pin internal harness connector.
5480313
Example of a 4 pin internal mode switch.
Page 4
January, 2026
Bulletin No.: PIP5700G
5480315
Example of a 4 pin internal harness connector.
5480316
Bulletin No.: PIP5700G
January, 2026
Page 5
Parts Information

Description
Part Number
Qty
Pass Thru Harness With

10 Pin IMS Non-ESS (Item

#37)
24045609
1
Valve Body Harness With

10 Pin IMS Non-ESS (Item

#313)
24046895
1
Pass Thru Harness With

24298759

10 Pin IMS With ESS (Item

#37)
1
Valve Body Harness With

24064375

10 Pin IMS With ESS (Item

#313)
1
Pass Thru Harness With 4

Pin IMS Non-ESS (Item

#37)
24045609
1
Valve Body Harness With 4 24046896

Pin IMS Non-ESS (Item

#313)
1
Pass Thru Harness With 4

Pin IMS With ESS (Item

#37)
24045608
1
Valve Body Harness With 4 24046896

Pin IMS With ESS (Item

#313)
1
Version
8
Modified
01/14/2020 - Created on.

01/17/2020 - Added description of ESS and Non ESS.

03/04/2020 - Added 2015-2017 GMC Yukon Denali.

05/04/2020 - Added information on how to use GDS2 data to aid in determining which

internal mode switch the vehicle is equipped with.

01/14/2021 - Added the 2021 model year

11/27/2023-Updated part numbers

10/30/2025 - Updated Model years and added Item Numbers to the parts section

01/12/2026 - Updated Part Numbers
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these

technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper

service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job

properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your

vehicle will have that condition. See your GM dealer for information on whether your vehicle may beneﬁt from the

information.
WE SUPPORT VOLUNTARY

TECHNICIAN

CERTIFICATION

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