NHTSA ID Number: 11020527
Manufacturer Communication Number: 37373
TSB/Document Date: 2025-07-09
Summary
This is a Technical Journal: DIM Message and DTC BECM P0C7800. Structure Week 2023w47 and newer: New BECM software is released in version 3.6.4. Perform a Total Upgrade according to TJ 31543. •If the DTC sets after SW version 3.6.4 or newer has been installed, please follow VIDA fault tracing and then create a TIE Support Needed Vehicle Report. *Structure Week 2023w46 and older: New BECM software is planned for 2026, Q1. •Please follow VIDA fault tracing and then create a TIE Support Needed Vehicle Report
Volvo
Car USA LLC
Technical Journal
Technical Journal Title
Ref. No.
DIM Message and DTC BECM P0C7800
TJ 37373.1.0
Issuer (Dept.)
Issue Date
Status Date
5/8/25
5/15/25
Technical Service
Car Market
Partner
Function Group
United States and Canada
3 US 7510 Volvo Car USA
3113
Function Description
Page
Battery, high voltage
Page 1 of 2
DESCRIPTION:
If the Driver Information Module (DIM) displays a message stating “Drive System Service Required”
and the DTC listed below is set, please follow the advice under “Service”.
CSC Customer Symptom Codes
Code
Description
7B
Starting/Engine does not start/Engine does not turn/No clicking sound at start attempt
IV
Text window and warning symbol/Text message
DTC Diagnostic Trouble Codes
Control Module
Code
Fault Type
BECM
P0C7800
Permanent
Vehicle Type
Type
Eng
Eng
Desc
Chassis
range
Struc Week
Range
224
H6
BH6PHEV
2023-2025
-
202244-202425
225
H6
BH6PHEV
2023-2025
-
202244-202426
238
246
H6
BH6PHEV
2023-2026
-
202246-202517
H6
BH6PHEV
2023-2026
-
202244-202523
256
H6
BH6PHEV
2023-2026
-
202244-202522
Sales
Body
Gear
Steer
Model Year
Plant
SERVICE:
Do not replace any parts.
A new Battery Energy Control Module (BECM) software is planned to be released in 2025 quarter 2.
•
Clear the DTC and release the car.
Note: If the customer has experienced this concern multiple times please contact Retailer Technical
Support by making a Support Needed TIE Vehicle Report.
This journal will be updated when the new software is available.
Technical Journal 37373.1.0
Warranty claim info:
To get a warranty claim accepted for a job described in this TJ, please use a General Operation and
claim 0.2.
Note that the TJ number must be stated in the repair order text.
VEHICLE REPORT:
Yes, please submit a Vehicle Report if the service solution described in this TJ has no effect, or if the
customer has experienced this concern mulitple times. Use concern area “Vehicle Report” and sub
concern area “Support Needed”, use function group 3119.
Page 2 of 2
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TSB/Document ID: 37373
Replacement Service Bulletin Number:
MFR Communication Date: 2025-05-16
MFR Internal Campaign ID/Software Version:
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
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