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Subject: New Cascadia CTP Not Communicating: Requires Reset
Make: Freightliner
Model: New Cascadia
Model Year Affected: 2018 through 2020
Build Date Range: Selected Vehicles Built Between March 20, 2018 to February 4, 2020
Our records indicate that you are the owner of certain vehicles; therefore, DTNA has decided to share
the following documentation with you.
Please see the attached communication in this email. We hope you find this information helpful.

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Subject: New Cascadia CTP Not Communicating: Requires Reset
Make: Freightliner
Model: New Cascadia
Model Years Affected: 2018 through 2020
Build Date Range: Selected Vehicles Built Between March 20, 2018 to February 4, 2020

Work Instructions
1. Park the vehicle, shut down the engine, and apply the parking brakes. Chock the tires.

NOTE: When trying to connect to the CTP01T electronic control unit (ECU), vehicles with Cummins
engines could encounter some challenges if third-party telematics have been added to the vehicle.
Because third-party telematics can communicate using source address (SA) 74, which is the same SA
the CTP01T ECU uses, a conflict can occur which results in the CTP01T not roll calling. If the vehicle is
equipped with a Cummins engine, go to step 2. If not, then continue to step 8.
---------------------------------------------------------------NOTICE ---------------------------------------------------------------DiagnosticLink 8.12 or newer, as well as a reliable internet connection, are required to complete
this procedure. The procedure cannot be performed offline. The loss of an internet connection
may result in failure of the CTP01T activation.
2. From the laptop or device, open DiagnosticLink®. Make sure that DiagnosticLink is set to ‘enable automatic
connection of SAE standard J1708 and J1939 devices.’ See Fig. 1.

Fig. 1, Enabling J1708 and J1939 Device Automatic Connection

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3. Connect to the vehicle, and select the ‘Standards’ tab from the ‘Identification’ icon, as shown in Fig 2. Note which
added device shows under SA 74. In this example, a Zonar unit was added. If no device is roll calling under SA 74
then go to step 8. If a device is showing under SA 74, go to step 4.

Fig. 2, ‘Standards’ Tab Monitoring SA 74
4. In many cases, third-party telematics can use prewire options supplied with the vehicle. Isolating the third-party
telematics can be achieved by monitoring the device roll calling on SA 74 listed on the ‘Standards’ tab, shown in
Fig. 2, while trying to disable it. Once the device communication or power supply is disabled, the device will no
longer roll call. This eliminates any conflicts with the CTP01T ECU, thus allowing CTP01T to roll call on the
common tab. The options below are provided to help disable customer added third-party telematics, so that the
CTP01T can be properly accessed.
4a. If customers are powering the third-party telematics using wiring provided in module 6TS - TELEMATICS
SYSTEM - WIRING, then disabling the component can be achieved by accessing the VPDM and pulling
the 10 amp fuse F74 that supplies ignition power, along with pulling the 10 amp fuses F75 and F76 that
supply battery power. See Fig. 3.

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F ig . 3 , V P D M F u s e L o c atio n s fo r M o d u le 6 T S - T e le m a tic s
4b. If customers are powering the third-party telematics using wiring provided in module 786 -POSITIONING &
LOCATION SYSTEMS, then disabling the component can be achieved by accessing the VPDM and pulling
the 5 amp fuse F41 that supplies ignition power, and pulling the 10 amp fuse F17(a) which would supply
battery power. See Fig. 4.

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F ig . 4 , V P D M F u s e L o c atio n s fo r M o d u le 7 8 6 - P o sitio n in g a n d L o c atio n S ys te m s
4c. Devices mount in many different locations. If the device is still roll calling while monitoring the ‘Standards’
tab for source address 74, it is recommended to consult with the owner or fleet coordinator of the vehicle to
determine where the third-party telematics are installed. Once the device is located, unplugging power and
ground supplies will disable the unit, eliminating its ability to roll call.
5. Once the third-party telematics is disabled and is no longer displaying in the ‘Standards’ tab, connection to the
CTP should be possible. To connect to the CTP, make sure the CTP is selected for ‘automatically connect.’
See Fig 5.

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F ig . 5 , V a lid a tin g /E n a b lin g C T P A u to m a tic a lly C o n n e cts

6. Validation that the CTP has connected can be confirmed by monitoring the Logged Connections in the lower left
corner of the DiagnosticLink screen under Logged Connections Fig. 6, to see if the CTP shows a green dot. If no
connection is made to the CTP01T then right-click in the Connections window, and select ‘Close Connections.’ If
any failed controller connections remain, shown with a red indicator, right-click and select ‘Clear All Connection
Errors.’ Manually connect to the CTP01T by clicking File > Connect and selecting the CTP01T.

F ig u re 6 C T P L o g g e d C o n n e ctio n s
7. Once connection to the CTP01T has been validated, close the connection and close DiagnosticLink. Go to step
8. If there is no connection to the CTP01T, close DiagnosticLink and disconnect from the vehicle. Reconnect to the
vehicle, and reopen DiagnosticLink. Check again to see if the CTP01T has connected. If the CTP01T connects,
close the connection and close DiagnosticLink. Go to step 8. If there is still no connection to the CTP01T, it cannot
be validated. Contact [email protected] or call (855) 253-0420 and select option 2.

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---------------------------------------------------------------NOTICE ---------------------------------------------------------------DiagnosticLink 8.12 or newer, as well as a reliable internet connection, are required to complete
this procedure. The procedure cannot be performed offline. The loss of an internet connection
may result in failure of the CTP01T activation.
8. Connect the vehicle to DiagnosticLink 8.12, or newer.
9. Verify the CTP01T software level.
10. Right-click in the Connections window, and select ‘Close Connections.’ If any failed controller connections
remain, shown with a red indicator, right-click and select ‘Clear All Connection Errors.’
11. Manually connect to the CTP01T by clicking File > Connect and selecting the CTP01T.
12. Wait until the CTP01T is fully connected and the connection indicators turn green.
12a. If no connection is made with the CTP01T, close out of DiagnosticLink. Reopen DiagnosticLink, and try
reconnecting to the CTP01T.
12b. If no connection to the CTP01T can be made, contact [email protected], or call (855)
253-0420 and select option 2.
13. Navigate to the ‘Identification’ icon under the ‘Common’ tab and locate ‘CTP01T Device Information;’ review the
software version. See Fig. 7.

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F ig . 7 , C T P S o ftw are L e ve l in R e d B o x
14. If the software version is 21.34.31 or later, then no additional repair is needed, go to step 33. If the Software
version is not 21.34.31 or later, go to step 15.
15. Using DiagnosticLink version 8.12 or newer, access the troubleshooting tab and select ‘Symptom.’ Click the
Next button, located on the bottom right side of the screen. See Fig. 8.

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F ig . 8 , S e le c tin g th e T ro u b le s h o o tin g T a b
16. From the vehicle selection options, select the applicable New Cascadia model. If DiagnosticLink has already
connected to the vehicle, only one option will be available. There is no need to pick any other options from this
screen. See Fig. 9 and Fig. 10. Click the ‘Next’ button to continue.

F ig . 9 , S e le c tin g th e A p p lic a b le N ew C a s c a d ia M o d e l

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F ig . 1 0 , V e rifyin g V e h ic le S e le c tio n
17. Select ‘Telematics,’ then click the ‘Next’ button to continue.
18. Select the ‘CTP not communicating over the air.’ Click the Next button to launch the ‘Advanced Diagnostic’
guided procedure.
NOTE: It is critical to read and follow the instructions in the guided steps. When prompted, make sure the CTP is
the only controller connected to DiagnosticLink. Any other controller connected during this process, including J1939
or J1708, may cause the process to fail.
19. Follow the guided procedure and, at the end, click ‘Finish’ until the final report is created, and the screen returns
to the ‘Troubleshooting’ method-selection screen.
20. Review the report pages, a copy should be saved for your records, click ‘Finish’ to return to the
‘Troubleshooting’ screen, and complete the reset of the procedure. See Fig. 11, Fig. 12, and Fig. 13.

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F ig . 1 1 , T ro u b le s h o o tin g R e p o rt, P a g e 1

F ig . 1 2 , T ro u b le s h o o tin g R e p o rt, P a g e 2

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F ig . 1 3 , T ro u b le s h o o tin g R e p o rt, P a g e 3
21. For vehicles in Group 1 on the attached list, disconnect the vehicle from DiagnosticLink, reinstall any pulled
fused or removed connections performed in steps 4a, 4b, or 4c, and go to step 33. For vehicles in Group 2 on the
attached list, do not disconnect DiagnosticLink. Wait five minutes and then continue with the next step.
22. Right-click in the Connections window, and select ‘Close Connections’. If any failed controller connections
remain, shown with a red indicator, right-click and select ‘Clear All Connection Errors.’
23. In DiagnosticLink, click ‘File > Connect’ and then, one at the time, select the following controllers to manually
connect to them.
• ICUC01T
• CGW04T
• CTP01T
IMPORTANT: Any other controllers, other than the three listed above, connected to DiagnosticLink may cause the
initialization process to fail.
24. Wait until all three controllers are fully connected and the connection indicators turn green. See Fig. 14

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F ig . 1 4 , D ia g n o s tic L in k C o n n e ctio n s P a n e l
25. Navigate to ‘Parameters,’ and allow the parameters to be read. See Fig. 15. Select the ‘Initialize CTP’ tab. See
Fig. 16.

F ig 1 5 R e ad in g P a ra m e ters

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F ig . 1 6 , ‘In itia lize C T P ’ T a b
26. Under ‘Parameters’ icon and ‘Initialize CTP’ tab, verify the VIN from CTP reads the default
AAAAAAAAAAAAAAAA or the exact VIN from the connected truck. See Fig. 16. Otherwise, the CTP may need to
be replaced with a like part number. The initialization can only occur with a CTP with the exact VIN or default
AAAAAAAAAAAAAAAA.
27. Run the initialization procedure by clicking on the ‘Initialize’ button. See reference #4 in Fig. 16.
28. If prompted, enter user name and password to connect DiagnosticLink to the server
29. Wait until the initialization procedure finishes, and the last line in the Initialize progress text field reads: ‘VIN
written to device and the required data was sent to the server.’ See Fig. 17.

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F ig . 1 7, ‘V IN W ritte n to D e vic e a n d th e R e q u ire d D ata w a s S e n t to th e S e rve r’ M e s s a g e
30. Within no more than 10 minutes from the end of the initialization procedure, does the CTP show the ‘VIN written
to device and the required data was sent to the server’ message? See Fig. 17.
YES → Take a screenshot of the DiagnosticLink window. Make sure the VIN and the last line in the dialog box
‘VIN written to device and the required data was sent to the server’ are visible in the capture, as shown in Fig.
17. Go to step 31.
NO → Contact the Detroit Connect Operations Support team via email [email protected], or
call (855) 253-0420 and select option 2.
31. Navigate to the ‘Instrumentation’ screen, and select the ‘Chart’ tab at the top of the page. See Fig. 18.

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F ig . 1 8 C h a rt T a b w ith C T P S e le c te d S h ow in g A c tiva tio n O K
32. Take a screenshot of the instrumentation window ‘Chart’ tab, showing ‘Activation OK.’ See Fig. 18.
33. Disconnect DiagnosticLink and reinstall any pulled fuses or removed connections performed in steps 4a, 4b or
4c.