NHTSA ID Number: 11028614
Manufacturer Communication Number: L1024_Customer Letter
TSB/Document Date: 2026-02-06
Summary
SERVICE BULLETIN L1024: LIVEWIRE ONE (LW1) INSTRUMENT MODULE REPLACEMENT (CUSTOMER LETTER). Intial Release. This bulletin informs vehicle owners that the Original Equipment (OE) Instrument Module (Part No. 70901100) has been discontinued and is no longer available to order as a replacement component for the 2021-2023 LiveWire ONE (LW1). If the Instrument Module (IM) needs to be replaced, one of the following replacement kits will be available: • Part No. 76001482 (EV 1-DOM) • Part No. 76001483 (EV 3-HDI). This kit will replace the original instrument with a 4-inch round instrument along with the supporting parts. Due to the differences in the instrument modules, appearance and functional content in this bulletin MUST be given to the vehicle owner. The attached items in this bulletin are: • Owner's Manual (OM) content to explain the operation of the new instrument module • Electrical Diagnostic Manual (EDM) content with an updated wire schematic and diagnostic procedure • Service Manual content to remove and install the round instrument module.
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TSB/Document ID: L1024_Customer Letter
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-28
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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d.
Install IM (1) assembly into mounting bracket (3).
4.
Disconnect wire harness connector (6).
e.
Install two flat head screws (4). Tighten.
5.
Remove gasket (2). Replace if needed.
3.
Install IM assembly onto upper handlebar clamp.
NOTE
Mark position of handlebar (1) before loosening.
4.
Install two button head screws (5). Tighten.
Torque: 12–17 in-lbs (1.4–1.9 N·m)
Torque: 9–10 ft-lbs (12–14 N·m)
4/6
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2036883
2036884
1
2
2
3
1
3
4
5
1.
2.
3.
6
Handlebar
Upper clamp
Screw (4)
Figure 4. Upper Handlebar Clamp
Complete
1.
2.
3.
4.
5.
6.
Instrument module
Gasket
Mounting bracket
Flat head screw (2)
Button head screw (2)
Connector
Figure 3. Round Gauge
1.
Install fairing. See service manual.
2.
Activate electrical system. See manual.
3.
Perform module replacement procedure using Digital
Technician II.
Special Tool: DIGITAL TECHNICIAN II (HD-48650)
ELECTRONIC DIAGNOSTIC MANUAL
1 2 3 4
BK
R/O
BE/PK
BE/O
BE/W
BE
Bare
BK
Ground
CAN High
CAN Low
2
3
4
1
2
3
4
W/BK
R/O
1
W/R
12V BK/GN
Power
[338B]
Round IM
12V Power
W/R
Square IM
1 2 3 5 6 7 8 9 10 11 12
R/O
1
1 2 3 5 6 7 8 9 10 11 12
R/O
W/R
BK
R/O
BE
BK/GN
W/BK
BE/O
BE/PK
Bare
BE/W
1
2
BK/GN
W/R
W/BK
R/O
2
3
1 2 5 6 7 8 9 10 11 12
BK
W/R
R/O
R/O
BK/GN
W/BK
BE/PK
BE/O
BE/W
BE
Shield
Ground
3
4
[39A]
[39B]
1 2 5 6 7 8 9 10 11 12
RHCM
BK/GN
OV USB
CAN High
12V Power
+5V USB
Ground
CAN Low
USB CC2
USB CC1
USB USB +
CAN Low
CAN High
4
W/BK
[39A]
[39B]
BK
W/R
R/O
R/O
BK/GN
W/BK
BE/PK
BE/O
BE/W
BE
LHCM
[24A]
[24B]
IM
5V USB
CAN High
0V USB
12V Power
USB Data +
Ground
CAN Low
USB CC1
USB CC2
USB Shield
USB Data -
IM
2038946
[22A]
[22B]
USB-C
Shield
(Only Round IM)
Figure 5. IM Circuit
1. IM Shape
1.
Verify the shape of the IM on this vehicle.
2.
What is the shape of the IM?
a. Square.
b. Round.
L1024_Letter
2. USB-C Voltage Test
1.
Connect good known device.
2.
Turn run/stop switch to STOP and wait 5 minutes.
3.
Inspect instrument connections.
4.
Connect instrument Breakout Box (BOB), with IM [39]
connected.
5/6
5.
Turn to Accessory position on ignition switch (ACC) or
run/stop switch to RUN.
6.
Using TEST CONNECTOR KIT (PART NUMBER: HD-41404),
test voltage between BOB terminal 1 and terminal 6.
1344210
HD 42682
1
2
3
4
5
6
7
8
9
10
11
12
BLACK
GRAY
1
6
2
3
7
8
11
4
5
9
10
(+)
(–)
12
Figure 6.
7.
Is voltage approximately 5 V?
a. Yes. Voltage is good.
b. No. Call tech service for further instructions.
3. USB-C Voltage Test
1.
Connect good known device.
2.
Turn run/stop switch to STOP and wait 5 minutes.
3.
Inspect instrument connections.
4.
Connect instrument BOB, with IM [39] connected.
5.
Turn to ACC or run/stop switch to RUN.
6.
Using TEST CONNECTOR KIT (PART NUMBER: HD-41404),
test voltage between BOB terminal 1 and terminal 3.
2037840
HD 42682
1
2
3
4
5
6
7
8
9
10
11
12
BLACK
GRAY
1
2
3
4
5
6
7
8
9
10
11
(+)
(–)
12
Figure 7.
7.
Is voltage approximately 5 V?
a. Yes. Voltage is good.
b. No. Call tech service for further instructions.
6/6
L1024_Letter
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