NHTSA ID Number: 11016891
Manufacturer Communication Number: 37298
TSB/Document Date: 2025-04-09
Summary
This is a Technical Journal: MVBM Replacement - Prior Approval Needed
Volvo
Car USA LLC
Technical Journal
Technical Journal Title
Ref. No.
MVBM Replacement - Prior Approval Needed
TJ 37298.1.1
Issuer (Dept.)
Issue Date
Status Date
2/24/25
3/10/25
Technical Service
Car Market
Partner
Function Group
United States and Canada
3 US 7510 Volvo Car USA
3114
Function Description
Page
Generated in Batch
Page 1 of 2
Rows beginning with * are modified
Note! If using a printed copy of this Technical Journal, first check for the latest online version.
DESCRIPTION:
In response to part inventory, cost, and the quality situation surrounding the Mid-Voltage Battery
Module (MVBM), the MVBM will now require Prior Approval before replacement.
Part number: 36010971
If it is determined that the MVBM needs to be replaced after all necessary fault-tracing has been
completed, please follow the advice under “Service”.
Please review the following supplemental Technical Journals before determining the MVBM needs
to be replaced:
TJ Number
TJ Title
Customer Symptom
35085
48 Volt battery (MVBM)
MVBM voltage drain while Update Showmode Device
with Volvo Car ShowMode using Brigo Showmode
to V7.0 or later
(Brigo)
Tool
36714
ISGM Faults Replacement
Countermeasures
12V Critical Charge
Message in DIM with
listed DTC’s
Workshop Remedy
Perform Total Upgrade on
Vehicle
CSC Customer Symptom Codes
Code
Description
7B
Starting/Engine does not start/Engine does not turn/No clicking sound at start attempt
AA
Starting/Engine does not start/Engine turns
AB
Starting/Engine hard to start/cranks slowly/Unsure when/at all times
AD
Starting/Engine hard to start/cranks slowly/Cold start
LM
12 V main battery/Dead battery
LN
12 V main battery/Weak or low electrical power
Technical Journal 37298.1.1
DTC Diagnostic Trouble Codes
Vehicle Type
Type
Eng
Eng
Desc
Chassis range
Struc Week
Range
224
L1
BL1KERS
2022-9999
-
0-0
225
06
B06KERS
2023-2023
-
0-0
227
L1
BL1KERS
2023-9999
-
0-0
236
06
B06KERS
2022-9999
-
0-0
238
06
B06KERS
2022-9999
-
0-0
246
06
B06KERS
2022-9999
-
0-0
246
L1
BL1KERS
2022-9999
-
0-0
256
L1
BL1KERS
2023-9999
-
0-0
536
K9
BK9KERS
2023-9999
-
0-0
536
L1
BL1KERS
2023-9999
-
0-0
Sales
Body
Gear
Steer
Model Year
Plant
SERVICE:
Please note: Ensure the vehicle is not low on fuel prior to beginning fault tracing / diagnosis, as
repetitive cranking of the engine when the vehicle has low fuel can drain the MVBM voltage.
If you determine that a MVBM replacement is necessary, please create a “Prior Approval” vehicle
report with “MVBM Prior Approval” in the title. Include a detailed description of the customer’s
concern and all of the fault-tracing steps that you have completed.
Retailer Technical Support will review the report and if necessary, order a MVBM on your behalf.
Warranty claim info:
No warranty claim is accepted for this TJ.
VEHICLE REPORT:
Yes, please submit a Vehicle Report to Retailer Technical Support to get technical prior approval for
MVBM replacement.
Use the concern area “Vehicle Report” and the sub-concern area “Prior Approval”, use function
group 3114, and title the report “MVBM Prior Approval”.
Page 2 of 2
2025-03-10
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TSB/Document ID: 37298
Replacement Service Bulletin Number:
MFR Communication Date: 2025-03-11
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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