NHTSA ID Number: 11018841
Manufacturer Communication Number: CBR 2435-6 202505
TSB/Document Date: 2025-06-02
Summary
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.
5/1/25, 10:00 AM
Print Solution
Uncontrolled Copy
ID #
CBR-2435
Version
6
Title
Volvo Chassis - Battery Sensor Diagnostic and Calibration Procedure - Model VN (4)
Abstract
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.
Content
Published 1 May 2025
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 Tech Tool
Calibration Failure / Programming Fa
with x54 and/or x56 and/or x57 fault c
x54 - Fault codes – e.g.: C1184-54, C118054, etc.
x56 - Fault codes – e.g.: C1180-56, C1184-5
56, etc.
x57 - Fault codes – e.g.: C1180-57, C1182-5
57, etc.
Scenario 1: Battery Sensor 24696834 Issues Before/After VMCU Campaign
Preliminary Checks
;
Live UI
Ensure battery voltage is above 20V.
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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 CCIOM Software:
Ensure the CCIOM program is updated to the latest version.
2. Program and Calibrate Sensor:
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.
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Note: Battery Sensor Programming is not required for PN:
24787102.
Note: If you see this message:
Please perform 1700-08-03-33 Function Parameters Reset for the battery.
When asked to select option, the Cold Cranking Amperage (CCA) is not important, select which
type of battery you have. (see pitcure below)
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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.
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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. Reconnect the battery sensors.
8. Turn the MDS on.
9. Run truck for 30 seconds, turn truck off, then return to on pre-run mode. Check DTC's.
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Tags
vn4
vn 4
battery sensor
24584129
24584130
24696834
24787102
c118257
c118357
c118457
u114187
c118156
c118054
c117f54
c118354
c118454
c117f57
c118057
c118157
Categories
Make and Model > Volvo > All-New VNL - VN (4)
8/8
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TSB/Document ID: CBR 2435-6 202505
Replacement Service Bulletin Number:
MFR Communication Date: 2025-05-01
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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