NHTSA ID Number: 10246177
Manufacturer Communication Number: SF678
TSB/Document Date: 2023-12-06
Summary
Field Service Campaign for Freightliner
Snow Plow Light Harness
Field Service Campaign
November 2023
SF678 A
35.2 Locate the empty cavity (cavity E) and remove the rubber plug. See Fig. 69.
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Fig. 69, Plow Light Interface Connector with the Plug to
be Removed from the Empty Cavity (Cavity E)
35.3 Cut a length of white 16-gauge wire approximately 24-inches long. On one end of this short wire,
install a terminal (23-13213-030) and seal (23-12497-006). See Fig. 70.
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Fig. 70, 24-Inch Length of 16-Gauge Wire with the
Terminal and Seal Crimped on One End
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
35.4 Insert the wire into the open cavity (cavity E) of the plow light interface connector, and install the connector lock. See Fig. 71 and Fig. 72.
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Fig. 71, Inserting the Wire into the Open Cavity E of the
Plow Light Connector
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Fig. 72, Installing the Lock on the Plow Light
Connector
35.5 Splice the two white wires that were routed from the firewall pass-through grommet to the short wire
that was connected to the plow connector in the previous substep. See Fig. 73.
NOTE: Trim the two white wires routed from the firewall pass-through grommet to length as needed. This
includes discarding the terminals that were on the end of these two wires.
NOTE: For wire splices, use one of the methods outlined in Section 54.00, Subjects 100 and 110 of the
Business Class M2 Plus Workshop Manual.
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Fig. 73, Completed Splice
35.6 Wrap any exposed wiring from the plow light connector to the taped portion of the two white wires
routed from the firewall pass-through grommet with fabric tape.
35.7 Secure the harness with zip ties as needed.
NOTE: Leave the connector cover off for testing in a later step.
36.
For dual plow light connector interface:
36.1 Cut the terminal off the ends of the two white wires that were routed from the firewall to the plow light
interface connectors, and install the terminal (23-13213-030) and seal (23-12497-006) on the end of
each wire.
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
36.2 Remove the cover and lock from the each plow light interface connector. See Fig. 66, Fig. 67, and
Fig. 68, page 42.
36.3 Locate the empty cavity (cavity E), and remove the rubber plug from each of the two plow light interface connectors. See Fig. 69, page 43.
36.4 Route the two white wires that were routed from the firewall pass-through grommet to each of the two
plow light connectors. Make sure the wire marked ‘left’ goes to the driver-side connector, and the wire
marked ‘right’ goes to the passenger-side connector. The wire to the passenger-side plow light interface
connector can follow the harness behind the front engine crossmember, as shown in Fig. 65, page 41,
and Fig. 74.
NOTE: Depending on the vehicle configuration and plow light connector location, it may be necessary to
lengthen the wires as needed.
A
1
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A. Routing path of the harness from the driver-side frame rail to the passenger-side plow light connector.
1. Passenger-Side Plow Light Connector
Fig. 74, Routing Path of the Harness to Passenger-Side Plow Light Interface Connector Along the Front Engine
Crossmember
36.5 Insert the wire marked ‘left’ into the empty cavity (cavity E) of the driver-side plow light connector.
Insert the wire marked ‘right’ in the empty cavity (cavity E) of the passenger-side plow light connector.
See Fig. 71.
36.6 Wrap any exposed wiring that was routed to the plow light connectors with fabric tape as needed.
36.7 Secure the wiring with zip ties as needed.
NOTE: Leave the connector covers off for testing in a later step.
37.
Connect the battery cables.
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.
Follow the substeps to set the parameters in the XMC2 and SSAM. See Table 4.
XMC2 and SSAM Parameter Settings
Parameter Description
Module
Parameter Part Number
PFSC_DFnc0002_mode = AH (fragment under the ’FSC Input Config’ Domain)
XMC2
SSAM
033 447 07 46 ZGS 001
FSC Logic Block 26_30
033 447 04 46 ZGS 001
FSC Parameters OutputPinBlock 1_12
FSC Parameters OutputPin block 13_18
ELC HW Config
030 447 30 46 ZGS 003
030 447 53 46 ZGS 002
033 447 60 58 ZGS 003
Switch 465 (fragment under the ’MSC MSF Vehicle Config’ Domain)
039 457 69 58 ZGS 001
Switch 69 (fragment under the ’MSC MSF Vehicle Config’ Domain)
016 443 67 58 ZGS 001
Table 4, XMC2 and SSAM Parameter Settings
38.1 Connect the vehicle to DiagnosticLink®.
38.2 Turn the ignition key to the ‘Run’ position.
38.3 Open DiagnosticLink.
IMPORTANT: Make sure that DiagnosticLink is updated to the latest version (8.17 SP1 at the time of publication or newer) before programming the vehicle.
38.4 Go to the ‘Program Device’ tab, and make sure that the vehicle identification number (VIN) is correct.
Select ‘Download data from server.’ Fig. 75.
B
A
C
09/28/2023
A. Go to the ‘Program Device’ tab.
B. Verify the VIN.
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C. Select ‘Download data from server.’
Fig. 75, Downloading Data from the Server
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.5 After the server data download is complete, go to the ‘Parameters’ tab.
NOTE: Some parameters may already be set to the correct values. Be sure to check each one to be sure.
38.6 Select and expand the ‘XMC202T – Extension Module Cabin 2’ folder. See Fig. 76.
A
B
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A. Go to the ‘Parameters’ tab.
B. Select and expand the ‘XMC202T – Extension Module Cabin 2’ folder.
Fig. 76, Selecting the ‘XMC202T – Extension Module Cabin 2’ Folder
38.7 Select and expand the ‘FSC Input Config’ sub-folder, and select the ‘PFSC_DFnc0002_mode’ parameter. Set the parameter value to ‘A0334470746-001 PFSC_DFnc0002_mode = AH.’ See Fig. 77.
A
B
C
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A. Select and expand the ‘FSC Input Config’ folder.
B. Select the ‘PFSC_DFnc0002_mode’ parameter.
C. Set the parameter value to ‘A0334470746-001 PFSC_DFnc0002_mode = AH.’
Fig. 77, Setting the ‘PFSC_DFnc0002_Mode’ Parameter Value
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.8 Select the ‘FSC Logic Block 26_30’ sub-folder, and set the parameter value to ‘A0334470446-001
FSC Logic Block 26_30 M2 Snow Plow Lights.’ See Fig. 78.
A
B
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A. Select the ‘FSC Logic Block 26_30’ sub-folder.
B. Set the parameter value to ‘A0334470446-001 FSC Logic Block 26_30 M2 Snow Plow Lights.’
Fig. 78, Setting the ‘FSC Logic 26_30’ Parameter Value
38.9 Select the ‘FSC Parameters OutputPinBlock 1_12’ sub-folder, and set the parameter value to
‘A0304473046-003 OutputPinBlock 1_12 81Z-006 43N SP Trn Sig Mrkr Util Lgt Fix.’ See Fig. 79.
A
B
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A. Select the ‘FSC Parameters OutputPinBlock 1_12’ sub-folder.
B. Set the parameter value to ‘A0304473046-003 OutputPinBlock 1_12 81Z-006 43N SP Trn Sig Mrkr Util Lgt Fix.’
Fig. 79, Setting the ‘FSC Parameters OutputPinBlock 1_12’ Parameter Value
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.10 Select the ‘FSC Parameters OutputPinBlock 13_18’ sub-folder, and set the parameter value to
‘A0304475346-002 OutputPinBlock 13_18 81Z-006 43N SP Trn Sig Mrkr Util Lgt Fix.’ See Fig. 80.
A
B
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A. Select the ‘FSC Parameters OutputPinBlock 13_18’ sub-folder.
B. Set the parameter value to ‘A0304475346-002 OutputPinBlock 13_18 81Z-006 43N SP Trn Sig Mrkr Util Lgt Fix.’
Fig. 80, Setting the ‘FSC Parameters OutputPinBlock 13_18’ Parameter Value
38.11 Select and expand the ‘SSAM02T - Single SAM’ folder. See Fig. 81.
A
B
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A. Ensure the ‘Parameters’ tab is selected.
B. Select and expand the ‘SSAM02T - Single SAM’ folder.
Fig. 81, Selecting the ‘SSAM02T - Single SAM’ Folder
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.12 Select the ‘ELC – HW Config’ sub-folder, and set the parameter value to ‘A0334476058-003 ELC
HW_Config – LED 003.’ See Fig. 82.
A
B
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A. Select the ‘ELC – HW Config’ sub-folder.
B. Set the parameter value to ‘A0334476058-003 ELC HW_Config – LED 003.’
Fig. 82, Setting the ‘ELC - HW Config’ Parameter Value
38.13 Select and expand the ‘MSC MSF Vehicle Config’ sub-folder, then select the ‘Switch_069’ parameter,
and set the parameter value to ‘A0164436758-001 Switch_069 = Switch Not Present.’ See Fig. 83.
B
A
C
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A. Select and expand the ‘MSC MSF Vehicle Config’ sub-folder.
B. Select the ‘Switch_069’ parameter.
C. Set the parameter value to ‘A0164436758-001 Switch_069 = Switch Not Present.’
Fig. 83, Setting the ‘Switch_069’ Parameter Value
38.14 Select the ‘Switch_465’ parameter. Set the parameter value to ‘A0394576958-001 Switch 465 =
Switch Present.’ See Fig. 84.
A
B
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A. Select the ‘Switch_465’ parameter.
B. Set the parameter value to ‘A0394576958-001 Switch 465 = Switch Present.’
Fig. 84, Setting the ‘Switch_465’ Parameter Value
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.15 Select the ‘Send’ button to write the parameter changes to the vehicle. A window will open asking to
confirm the parameter changes. Select ‘OK.’ See Fig. 85.
B
A
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A. Select the ‘Send’ button.
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B. Select ‘OK’ to confirm the parameter changes.
Fig. 85, Writing the Parameter Changes to the Vehicle
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.16 Once the parameter change is complete, go to the ‘Program Device’ tab. Select ‘Unit data management’ in the upper-right corner. See Fig. 86.
B
A
03/23/2022
A. Go to the Program Device tab.
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B. Select ‘Unit data management.’
Fig. 86, Selecting Unit Data Management
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Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
38.17 The information corresponding to the VIN should appear under the ‘Unit data for upload.’ Select ‘Connect to server’ to upload the new parameters. See Fig. 87.
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Fig. 87, Uploading the New Parameters
38.18 Once the parameter updates are uploaded to the server, disconnect the vehicle from DiagnosticLink.
38.19 Turn the ignition key to the OFF position.
39.
Follow the substeps to verify the plow light switch function.
39.1 Install test jumper(s) in the plow light interface connector(s) as follows:
• For single connector plow light interface → Install a test jumper in the plow light interface
connector between pin E (white wire added) and pin B (ground). See Fig. 88 and Fig. 91, page 55.
• For dual connector plow light interface → On each of the two plow light interface connectors,
install a test jumper pin E (white wire added) and pin B (ground).
. 88 and Fig. 91, page 55.
See Fig.
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Fig. 88, Test Jumper Wire Installed in the Plow Light
Interface Connector Between Pin E (white wire added)
and Pin B (ground)
Page 53
Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
39.2 Turn the ignition key to the ‘Run’ position, then turn the headlight switch to the ON position. Verify
that the headlights and all marker lights are on. See Fig. 89.
39.3 Turn the plow light switch to the ON position, and verify the following:
• Headlights should be off and all other marker lights should be on. See Fig. 90.
B
1
A
2
2
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1. Marker Lights
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2. Headlights
Fig. 89, Verifying the Headlights and Marker Lights
Turn On Prior to Turning On the Plow Light Switch
Page 54
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A
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A. The headlights are off.
B. The marker lights are on.
Fig. 90, Verifying the Headlights Turn Off and All Other
Marker Lights Remain On After Turning On the Plow
Light Switch
Daimler Truck
North America LLC
Field Service Campaign
November 2023
SF678 A
• There should be a battery voltage (~12.5V) at the low beam output pin on the plow light connector(s):
For single connector plow light interface → Measure the battery voltage at pin A (green wire).
See Fig. 91.
For dual connector plow light interface → Measure the battery voltage at pin A (green wire)
on both connectors. See Fig. 91.
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A
F
C
D
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Connect the jumper wire between pins E and B. Measure
the battery voltage at pin A.
Fig. 91, Plow Light Interface Test Jumper and Voltage
Check Pin Locations
• If the headlights and markers lights function correctly, and if there is voltage at the low beam
output pin(s) at the plow light connector(s), then go to the next step.
• If the headlights do not turn off, and all other marker lights remain on when the plow switch is
turned on, check the installation of the wiring harnesses and re-check the function.
• If voltage is not present at the low beam output pin(s), verify that the parameters were set correctly, and check the wiring installation, especially the connection at the XMC2, then re-check
the function.
40.
Install the dash panels. For instructions, see Section 60.08 of the Business Class M2 Plus Workshop
Manual.
41.
Clean a spot on the base label (Form WAR259), and attach a campaign completion sticker for SF678
(Form WAR261), indicating this work has been completed.
Page 55
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TSB/Document ID: SF678
Replacement Service Bulletin Number:
MFR Communication Date: 2023-11-13
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