NHTSA ID Number: 11028046
Manufacturer Communication Number: CBR 2516-6 202601
TSB/Document Date: 2026-02-03
Summary
CBR - CMS Black Screen Troubleshooting - PR (4) - AN (4).
1/30/26, 7:51 AM
Article
Preview Solution CBR-2516-6
CMS Black Screen Troubleshooting - VN
(4) - PR (4) - AN (4)
Published 2aJanuarya2026
Valid For
Volvo
Chassis - VN (4)
Mack
Chassis - PR (4) - AN (4)
Model Year - 2025 to Current
The purpose of this CBR is to provides guidance on identifying problems with the
Camera Monitoring System Black Screen and Permanent Red Warning Pop up.
To assistain troubleshooting the CMS system, please reference this CMS
Troubleshooting Guide.a
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1/1
CMS Black Screen Troubleshooting
November 2025
CMS Black Screen and CMS IC warning
Troubleshooting
Abstract
This CBR solution provides guidance on identifying problems with the Camera Monitoring
System Black Screen and Permanent Red Warning Pop up.
Content
Published 18 December 2025
Valid For
Volvo
VN(4) model year 2025 to current.
MACK
Pioneer, Model year 2025 to current.
The purpose of this CBR is to provide guidance and solutions for troubleshooting the Camera
Monitoring System Black Screen and Permanent Red Warning Pop Up
1
CMS Black Screen Troubleshooting
November 2025
Contents
1
Abbreviation, required tools, ECU pinouts & work sheet..........................................................3
1.1
ææŘôŽĖÍťĖĺIJŜϙÍIJîϙîôƱIJĖťĖĺIJŜϡ .......................................................................................3
1.2
Required tools ..............................................................................................................4
1.3
ECU connector and pinout view ....................................................................................5
1.4
VOLVO
VN4 – Camera Monitoring System (CMS) Work Sheet ..........................................6
2
Description of issue ..............................................................................................................7
3
Fault Codes ..........................................................................................................................8
4
3.1
Fault codes – INACTIVE .................................................................................................8
3.2
Fault Codes – ACTIVE ..................................................................................................10
Wiring .................................................................................................................................14
4.1
Fault tracing and corrective actions .............................................................................14
4.1.1
Driver camera wiring ...............................................................................................14
4.1.2
Passenger camera wiring.........................................................................................18
4.1.3
Curb (Class V) passenger camera wiring ..................................................................22
4.1.4
Driver and/or Passenger display wiring .....................................................................25
4.2
Full harness instructions .............................................................................................28
4.3
Overlay instructions....................................................................................................28
4.3.1
ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͐ϡϙīÍŜŜϙIIϯI«ϙĺŽôŘīÍƅϙϼbϭϙ͓͓͑͏͗͑͑͘ϽϙĖIJŜťÍīīÍťĖĺIJ ........................ 28
4.3.2 ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͑ϡϙVŪıŕôŘϙFÍŘIJôŜŜϙ"ŘĖŽôŘϙŜĖîôϙϼbϭϙ͔͖͗͐͏͔͑͒ϙѭϙ«IbϙIJŪıæôŘϽϙĺŘϙ
VŪıŕôŘϙFÍŘIJôŜŜϙÍŜŜôIJČôŘϙŜĖîôϙϼbϭϙ͔͖͗͐͏͔͓͑ϙѭϙ«IbϙIJŪıæôŘϽϙĖIJŜťÍīīÍťĖĺIJ .......................... 34
4.3.3
ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͒ϡϙīÍŜŜϙ«ϙiŽôŘīÍƅϙϼbϭϙ͓͓͑͏͗͐͒͘ϽϙĖIJŜťÍīīÍťĖĺIJ ........................... 46
4.3.4
ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͓ϡϙÍıôŘÍϙÍŘıϙŘôŕīÍèôıôIJť .......................................................͓͘
2
CMS Black Screen Troubleshooting
November 2025
Troubleshooting CMS Black Screen and Red Warning Pop up
Note: Do NOT clear fault codes at this time.
1 Abbreviation, required tools, ECU pinouts & work sheet
1.1 Abbreviations ÍIJîϙîôƱIJĖťĖĺIJŜ:
CMS – Camera Monitoring System (Digital Mirror System)
ECU – Electronic Control Unit
PTT – Premium Tech Tool
MDS – Maintenance Disconnect Switch
Class II/IV - Driver and Passenger side cameras
Class V – Passenger Side or curb view camera
Jumper Harness – Camera Cable/Connectors in between In Cab Overlay and Wing
Cables/connectors
In Cab Overlay – CMS Display and Camera Cable harness containing the following
connectors (Class II/IV ECU side, Class V ECU side, Class II/IV
Permanent black Screen
Temporary Black Screen
Permanent Red Pop up
Temporary Red Pop up
Picture overview of the overhead shelf to be added by David
3
CMS Black Screen Troubleshooting
November 2025
1.2 Required tools
4
CMS Black Screen Troubleshooting
November 2025
1.3 ECU connector and pinout view
5
CMS Black Screen Troubleshooting
November 2025
īôÍŜôϙƱīīϙĺŪťϙťēĖŜϙſĺŘħŜēôôťϙæôċĺŘôϙĺŕôIJĖIJČϙÍIJϙϙèÍŜôϙĺŘϙîĖÍČIJĺŜĖŜϙ
1.4 VOLVO
VN4 – Camera Monitoring System (CMS) Work Sheet
Please complete the following information to submit to the SR case. Ensure all sections
are filled out accurately and screenshots are attached where required.
VIN: ______________________________________
Active Fault Codes:
Inactive Fault Codes:
Customer Complaint:
Can Complaint Be Duplicated:
Ч Yes
Ч No
(Provide details if applicable)
aϙFÍŘîſÍŘôϙÍIJîϙŪæ-FÍŘîſÍŘôϙÍŘťϙbŪıæôŘŜϡ
1. (ϡϙ϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶
2. "ŘĖŽôŘϙĖîôϙÍıôŘÍϡϙ϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶
3. ÍŜŜôIJČôŘϙĖîôϙÍıôŘÍϡϙ϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶
4. ÍŜŜôIJČôŘϙĖîôϙŪŘæϙÍıôŘÍϡϙ϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶϶
Screenshots:
Attach screenshots of Premium Tech Tool CMS mismatches here.
aϙĺċťſÍŘôϙÍŘťϙbŪıæôŘŜϙϼFÍŘîſÍŘôϙÍIJîϙŪæ-FÍŘîſÍŘôϽϡ
x
Check if update available for CMS SW. If yes, update software after CBR performing
SWDL via PTT or workshop toolbox.
6
CMS Black Screen Troubleshooting
November 2025
2 Description of issue
Two Issues are being seen
a) CMS Black Screen Occurring on either Driver OR Passenger displays (temporary
black screen)
b) Permanent Red Warning Pop up in Instrument Cluster (Permanent Red Warning Until
Battery Disconnect is completed using the maintenance disconnect switch)
7
CMS Black Screen Troubleshooting
November 2025
3 Fault Codes
The Fault codes should be checked ƱŘŜťϙfor the CMS; this will help in determining what the
root cause is for the issue.
From the list of fault codes below, if they appear as INACTIVE in PTT and issue cannot be
duplicated, then proceed to section 3.1 Fault codes - INACTIVE. Prioritize fault codes with
high occurrence counts.
All ACTIVE fault codes should be fault traced via respective fault trace section in CBR (ECU,
Monitor/Display, Camera, Wiring) section 3.2 Fault Codes – ACTIVE.
3.1 Fault codes – INACTIVE
In the event of there being the following CMS INACTIVE fault codes with most occurrence
counts, then perform the listed corrective actions associated with each fault code
IIJÍèťĖŽôϙ>ÍŪīťϙĺîôŜϙċĺŘϙ"ŘĖŽôŘϙÍIJîϯĺŘϙÍŜŜôIJČôŘϙĖîôϙ"ĖŜŕīÍƅŜ
IF you have any of the following high occurrence Inactive fault codes in the table below,
perform the following part replacements
x
Class II/IV overlay (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͐ϡϙīÍŜŜϙIIϯI«ϙĺŽôŘīÍƅϙϼbϭϙ͓͓͑͏͗͑͑͘Ͻϙ
installation)
DTC
Fault Description
U1004-08
Lost Communication With Left Side View
Monitor - Bus Signal / Message Failures
U100A-08
Lost Communication with Right Side View
Monitor - Bus Signal / Message Failures
B1005-13
Right Side View Monitor Circuit - Circuit
Open
B1004-13
Left Side View Monitor Circuit - Circuit
Open
B1004-͐͘
Left Side View Monitor Circuit - Circuit
Current Above Threshold
B1004-1C
Left Side View Monitor Circuit - Circuit
Voltage Out of Range
B1005-02
Right Side View Monitor Circuit - General
Signal Failure
B1005-͐͘
Right Side View Monitor Circuit - Circuit
Current Above Threshold
8
CMS Black Screen Troubleshooting
November 2025
B1005-1C
Right Side View Monitor Circuit - Circuit
Voltage Out of Range
IIJÍèťĖŽôϙ>ÍŪīťϙĺîôŜϙċĺŘϙ"ŘĖŽôŘϙĖîôϙÍıôŘÍ
IF you have any of the following high occurrence Inactive fault codes in the table below,
perform the following part replacements
x
x
x
Class II/IV overlay (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͐ϡϙīÍŜŜϙIIϯI«ϙĺŽôŘīÍƅϙϼbϭϙ͓͓͑͏͗͑͑͘Ͻϙ
installation)
"ŘĖŽôŘϙĖîôϙVŪıŕôŘϙFÍŘIJôŜŜ (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͑ϡϙVŪıŕôŘϙFÍŘIJôŜŜϙ"ŘĖŽôŘϙŜĖîôϙϼbϭϙ
͔͖͗͐͏͔͑͒ϙѭϙ«IbϙIJŪıæôŘϽϙĺŘϙVŪıŕôŘϙFÍŘIJôŜŜϙÍŜŜôIJČôŘϙŜĖîôϙϼbϭϙ͔͖͗͐͏͔͓͑ϙѭϙ«Ibϙ
number) installation)
Driver Side Camera arm (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͓ϡϙÍıôŘÍϙÍŘıϙŘôŕīÍèôıôIJť)
DTC
Fault Description
B1002-͐͘
Driver Side Camera Circuit – Circuit
Current Above Threshold
B1002-13
Driver Side Camera Circuit – Circuit Open
U1001-08
Lost Communication with Driver Side
Camera – Bus Signal/Message Failures
IIJÍèťĖŽôϙ>ÍŪīťϙĺîôŜϙċĺŘϙÍŜŜôIJČôŘϙĖîôϙÍıôŘÍ
IF you have any of the following high occurrence Inactive fault codes in the table below,
perform the following part replacements
x
x
x
Class II/IV overlay (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͐ϡϙīÍŜŜϙIIϯI«ϙĺŽôŘīÍƅϙϼbϭϙ͓͓͑͏͗͑͑͘Ͻϙ
installation)
ÍŜŜôIJČôŘϙĖîôϙVŪıŕôŘϙFÍŘIJôŜŜ (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͑ϡϙVŪıŕôŘϙFÍŘIJôŜŜϙ"ŘĖŽôŘϙŜĖîôϙ
ϼbϭϙ͔͖͗͐͏͔͑͒ϙѭϙ«IbϙIJŪıæôŘϽϙĺŘϙVŪıŕôŘϙFÍŘIJôŜŜϙÍŜŜôIJČôŘϙŜĖîôϙϼbϭϙ͔͖͗͐͏͔͓͑ϙѭϙ
VIN number) installation)
Passenger Side Camera arm (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͓ϡϙÍıôŘÍϙÍŘıϙŘôŕīÍèôıôIJť)
DTC
Fault Description
B1000-͐͘
Right Side Camera Circuit - Circuit
Current Above Threshold
B1000-13
Right Side Camera Circuit - Circuit Open
͐͏͏͘-08
Lost Communication With Right Side
Camera - Bus Signal / Message Failures
͘
CMS Black Screen Troubleshooting
November 2025
IIJÍèťĖŽôϙ>ÍŪīťϙĺîôŜϙċĺŘϙÍŜŜôIJČôŘϙĖîôϙŪŘæϙÍıôŘÍ
IF you have any of the following high occurrence Inactive fault codes in the table below,
perform the following part replacements
x
x
x
Class V overlay (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͒ϡϙīÍŜŜϙ«ϙiŽôŘīÍƅϙϼbϭϙ͓͓͑͏͗͐͒͘ϽϙĖIJŜťÍīīÍťĖĺIJ)
ÍŜŜôIJČôŘϙĖîôϙVŪıŕôŘϙFÍŘIJôŜŜ (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͑ϡϙVŪıŕôŘϙFÍŘIJôŜŜϙ"ŘĖŽôŘϙŜĖîôϙ
ϼbϭϙ͔͖͗͐͏͔͑͒ϙѭϙ«IbϙIJŪıæôŘϽϙĺŘϙVŪıŕôŘϙFÍŘIJôŜŜϙÍŜŜôIJČôŘϙŜĖîôϙϼbϭϙ͔͖͗͐͏͔͓͑ϙѭϙ
VIN number) installation)
Passenger Side Camera arm (ĺŘŘôèťĖŽôϙÍèťĖĺIJϙϭ͓ϡϙÍıôŘÍϙÍŘıϙŘôŕīÍèôıôIJť)
DTC
Fault Description
B1001-͐͘
Right Side Kerb Camera Circuit - Circuit
Current Above Threshold
B1001-13
Right Side Kerb Camera Circuit - Circuit
Open
U1002-08
Lost Communication With Right Side
Kerb Camera - Bus Signal / Message
Failures
3.2 Fault Codes – ACTIVE
1. ECU Related Active Fault Codes
For ECU related Fault codes, follow diagnostic procedure in PTT.
For Black screen occurring on both Driver AND Passenger displays at the same time, ECU
>ÍŪīťϙèĺîôŜϙŜēĺŪīîϙæôϙÍîîŘôŜŜôîϙƱŘŜť.
DTC
Fault Description
U3000-04
Electronic control unit - System Internal
Failures
U3000-01
Electronic control unit - General
Electrical Failure
U3000-A2
Electronic control unit - System Voltage
Low
U3000-61
Electronic control unit - Signal
Calculation Failure
2. Monitor/Display HW Active Related Fault Codes
10
CMS Black Screen Troubleshooting
November 2025
>ĺŘϙ "ĖŜŕīÍƅϙ F®ϙ active related fault codes, follow PTT Diagnostics and Impact
Instructions
DTC
Fault Description
B1005-͏͘
Right Side View Monitor Circuit Component Failures
B1005-2B
Right Side View Monitor Circuit - Signal
Cross Coupled
B1005-41
Right Side View Monitor Circuit - General
Checksum Failure
B1004-͏͘
Left Side View Monitor Circuit Component Failures
B1004-41
Left Side View Monitor Circuit - General
Checksum Failure
B1004-00
Left Side View Monitor Circuit - No Sub
Type Information
B1004-2B
Left Side View Monitor Circuit - Signal
Cross Coupled
B1004-26
Left Side View Monitor Circuit - Signal
Rate of Change Below Threshold
B1004-44
Left Side View Monitor Circuit - Data
Memory Failure
B1005-00
Right Side View Monitor Circuit - No Sub
Type Information
B1005-02
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TSB/Document ID: CBR 2516-6 202601
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-03
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
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