SP 398-001

Volvo Trucks North
America
Greensboro, NC USA
Service Program
Trucks
Date
3.2017
Group
No.
398 001
Release
Page
01
1(3)
TGW Control Unit, Reprogramming
VN, VHD, VAH
SP 398-001, TGW Control Unit, Reprogramming
(March 2017)
On some trucks with the Telematics Gateway (TGW) system, the TGW control unit may not
correctly communicate with the vehicle systems after restarting. The behavior associated
with this issue will be the message “Volvolink Hardware Failure – Use Paper Logs”
appearing in the Driver Information Display in the instrument cluster, and a high number of
MID 140 PSID 239 FMI 12 faults when viewed in tech tool. The faults occur when the TGW
control unit fails to properly restart and falls into a restart loop preventing the control unit from
communicating with the instrument cluster on the J1587 datalink. This is due to a software
issue in the TGW control unit that manages how the unit handles failed restarts. To correct
this issue, follow the instructions in this document to reprogram the TGW control unit to the
latest software level.
Vehicles Affected:All vehicles with TGW2.1 3G Control Module part number 22558686 and
software part number 23035402.
USA138701194
PV729-SP398-001
English
Volvo Trucks North America
Service Program
Date
3.2017
Group
No.
Release
398
001
01
Decommissioning the Truck for Repair
You must read and understand the precautions and guidelines in Service Information,
group 30, "General Safety Practices, Electrical" before performing this procedure. If you
are not properly trained and certified in this procedure, ask your supervisor for training
before you perform it.
NOTE: Information is subject to change without notice. Illustrations are used for reference
only and can differ slightly from the actual vehicle being serviced. However, key
components addressed in this information are represented as accurately as possible.
1 Park the vehicle on a flat and level surface.
2 Apply the parking brake.
3 Place the transmission in neutral or park.
4 Install the wheel chocks.
W7086748
TGW Control Unit, Reprogramming Procedure
1 Connect Premium Tech Tool to vehicle and view the control unit information.
2 If the Product Data column for the Telematics Gateway shows a red circle with a minus
symbol remove fuse F13 in the cab fuse and relay center (FRC) for 5 minutes. Reinstall
the fuse to reestablish the connection.
3 Verify that the Product Data column for the Telematics Gateway shows a green circle with
a check mark before continuing.
4 Under the Program tab, select 1700–08–03–39 Electronic Control Unit, then select
Telematics Gateway (TGW).
5 Select update Electronic Control Unit with latest software, then select Program to begin
the programming procedure.
6 When the programming procedure is complete, return to the Control Unit Information
screen and verify that the Telematics Gateway has a check mark under Product Data
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Volvo Trucks North America
Service Program
Date
3.2017
Group
No.
Release
398
001
01
Commissioning the Truck for Operation
1 Remove the wheel chocks.
W7086759
Reimbursement
This repair is covered by an authorized Service Program.
Reimbursement is obtained via the normal claim handling
process.
UCHP
Reimbursement
Claim Type (used only when uploading from the Dealer
Bus. Sys.)
B
Recall Status
Vehicle inspected, repair not required
Vehicle repaired per instruction
Labor Code
Primary Labor Code (TGW Control Unit Reprogramming)
3970–22–03–03
0.3 hrs
Take to take charge and determine campaign status
1700–16–01–01
0.3 hrs
Causal Part
22558686
SCC Code
S7172
Authorization Number
NA
Expiration Date
March 31, 2018
Note: Take Charge Time is not included in the Labor Code for this operation. Take charge
may be eligible but can only be used once per repair visit. If vehicle is having other warranty
repairs performed, take charge should be charged to the warranty repair, otherwise take
charge can be charged to this service program.
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