NHTSA ID Number: 11028010
Manufacturer Communication Number: CBR 2435-16 202601
TSB/Document Date: 2026-02-02
Summary
CBR - Volvo
Chassis - Battery Sensor Diagnostic and Calibration Procedure - VN (4).
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TSB/Document ID: CBR 2435-16 202601
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-06
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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1/30/26, 7:55 AM
Article
Preview Solution CBR-2435-16
Volvo Chassis - Battery Sensor
Diagnostic and Calibration Procedure VN (4)
Published 6 January 2026
Valid For
Volvo model - VN(4)
Model Year 2025 to current
This CBR solution provides guidelines for ensuring the correct position of battery sensor
modules and battery sensor harnesses on the Volvo VN(4) chassis, as well as the Battery
Sensor Diagnostic and Calibration Procedure.
Battery Sensor Concerns
Problem Observed
Battery Sensor Sub-HW mismatch in Control Unit Data after VMCU
campaign
Missing calibration
Invalid / Incompatible Configuration
Invalid / Incompatible Software Component
What Is Seen In
Calibration Failure / Pro
with x54 and/or x56 and/
x54 - Fault codes – e.g.: C118
54, etc
x56 - Fault codes – e.g.: C118
56, etc
x57 - Fault codes – e.g.: C118
57, etc
Scenario 1: Battery Sensor 24696834 Issues Before/After VMCU
Campaign
Preliminary Checks
Ensure battery voltage is above 20V.
Disconnect any battery charger from the unit before performing battery sensor
calibration.
Inspect all wiring, connectors, PINs, LIN11, and the 3A fuse connected to the
battery sensors before proceeding with further steps.
Procedure
; Live UI
1. Update CCIOM Software:
Ensure the CCIOM program is updated to the latest version.
2. Program and Calibrate Sensor:
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Program and then calibrate the existing battery sensor (PN: 24696834).
3. Troubleshoot Calibration Errors:
If a programming or calibration error occurs in Tech Tool:
Disconnect and reconnect the sensor module connector.
Retry programming/calibration.
4. Sensor Replacement (If Necessary):
If Step 3 fails, replace the battery sensor.
Order and install a new battery sensor (PN: 24787102).
If new parts are installed ensure you perform replace hardware
operation (#1700-22-03-12) for CCIOM in PTT. This Ensures correct
part numbers are reported to back office systems and pervent data
mismatch.
5. Final Calibration:
Calibrate the new battery sensor.
Note: Battery Sensor Programming is not required
for PN: 24787102.
Scenario 2: Battery Sensor 24787102 Issues Before/After VMCU
Campaign
Preliminary Checks
Ensure battery voltage is above 20V.
Disconnect any battery charger from the unit before performing battery sensor
calibration.
Inspect all wiring, connectors, PINs, LIN11, and the 3A fuse connected to the
battery sensors before proceeding with further steps.
Procedure
1. Update and Calibrate:
Update the CCIOM program to the latest version.
Calibrate the battery sensor.
2. Troubleshoot Calibration Errors:
If a calibration error occurs in Tech Tool:
Disconnect and reconnect the sensor module connector.
Retry calibration.
3. Sensor Programming (If Necessary):
If Step 2 fails, program the battery sensor and recalibrate.
4. Sensor Replacement (If Necessary):
If Step 3 fails, replace the battery sensor.
Order and install a new battery sensor (PN: 24787102).
5. Final Calibration:
Calibrate the new battery sensor.
Note: Battery Sensor Programming is not required
for PN: 24787102.
; Live UI
Currently programming PN 24787102 will cause calibration to fail.
Do not program until further notice
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Note: If you see this message:
Please refer to CBR-2544.
Battery Sensor Module Position
4-Battery Configuration:
Battery Sensor Module 1: Install on the inboard-most set of batteries.
Battery Sensor Module 2: Install on the outboard-most set of batteries.
6-Battery Configuration:
Battery Sensor Module 1: Install on the inboard-most set of batteries.
Battery Sensor Module 2: Install on the middle set of batteries.
Battery Sensor Module 3: Install on the outboard-most set of batteries.
Refer to the image below for detailed positioning of battery sensor modules.
; Live UI
Battery Sensor Identification
PTT Identification
Actual Identification
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Battery Sensor Module 3, Sensor 1
Battery Sensor Module 3, Sensor 2
Battery Sensor Module 3, Sensor 3
Battery Sensor Module 1, Sensor 1
Battery Sensor Module 1, Sensor 2
Battery Sensor Module 2, Sensor 3
Battery Sensor Module 3, Sensor 4
Battery Sensor Module 3, Sensor 5
Battery Sensor Module 3, Sensor 6
Battery Sensor Module 2, Sensor 4
Battery Sensor Module 3, Sensor 5
Battery Sensor Module 3, Sensor 6
Post-Correction Operations
After performing any corrections to the battery sensors or their harnesses, the
following operations must be completed:
1. Operation 3113-22-03-01: Programming for all battery sensors.
2. Operation 1700-08-03-33: Calibration for all battery sensors.
Ensure both operations are performed to maintain system integrity and performance.
Harness Label Issues
If harness labels are:
Damaged
Missing
Illegible
Use the following method to determine the correct harness positioning:
1. Use a Multimeter:
Measure the voltage to the code pin of each harness.
Cross-reference the voltage readings with the vehicle’s electrical
schematic to confirm the correct harness position.
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Scenario 3: Battery Sensor Modules and/or CCIOM offline.
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Battery Sensor Modules and/or CCIOM Offline
1. Turn the Maintenance Disconnect Switch (MDS) off.
2. Unplug each individual battery sensor. (pictured below)
3. Unplug the communication line from the UltraCapacitor. (pictured below)
4. Wait 3 minutes.
5. While waiting, inspect the 3A fuses mounted on the 24V and Ground
bus bars.( pictured below)
6. Reconnect the UltraCapacitor communication line.
7. Ensure ground wire is installed. Reference impact operation 3111-16-0201 - Battery Sensor, replace.
8. Reconnect the battery sensors.
9. Turn the MDS on.
10. Run truck for 30 seconds, turn truck off, then return to on pre-run mode.
Check DTC's.
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